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401. Flow Management for Hydropower Extirpates Aquatic Insects, Undermining River Food Webs

Author:
Kennedy, Theodore A.; Muehlbauer, Jeffrey D.; Yackulic, Charles B.; Lytle, David A.; Miller, Scott W.; Dibble, Kimberly L.; Kortenhoeven, Eric W.; Metcalfe, Anya N.; Baxter, Colden V.
Source:
BioScience 2016 v.66 no.7 pp. 561-575
ISSN:
1525-3244
Subject:
aquatic food webs,   etc   ; Ephemeroptera; aquatic insects; data collection; hydroelectric power; life history; models; oviposition; prediction; rivers; surveys; Colorado River; Western United States;     Show all 13 Subjects
Abstract:
... Dams impound the majority of rivers and provide important societal benefits, especially daily water releases that enable on-peak hydroelectricity generation. Such “hydropeaking” is common worldwide, but its downstream impacts remain unclear. We evaluated the response of aquatic insects, a cornerstone of river food webs, to hydropeaking using a life history–hydrodynamic model. Our model predicts th ...
DOI:
10.1093/biosci/biw059

402. Aquatic bioaccumulation and trophic transfer of tetrabromobisphenol-A flame retardant introduced from a typical e-waste recycling site

Author:
Tao, Lin; Wu, Jiang-Ping; Zhi, Hui; Zhang, Ying; Ren, Zi-He; Luo, Xiao-Jun; Mai, Bi-Xian
Source:
Environmental science and pollution research international 2016 v.23 no.14 pp. 14663-14670
ISSN:
0944-1344
Subject:
aquatic food webs,   etc   ; aquatic invertebrates; bioaccumulation factor; correlation; electronic wastes; fish; flame retardants; liquid chromatography; nitrogen; recycling; stable isotopes; tandem mass spectrometry; trophic levels; China;     Show all 14 Subjects
Abstract:
... While the flame retardant chemical, tetrabromobisphenol-A (TBBP-A), has been frequently detected in the environment, knowledge regarding its species-specific bioaccumulation and trophic transfer is limited, especially in the highly contaminated sites. In this study, the components of an aquatic food web, including two invertebrates, two prey fish, and one predator fish, collected from a natural po ...
DOI:
10.1007/s11356-016-6940-6

403. Mercury Concentrations in Eggs of Red-Winged Blackbirds and Tree Swallows Breeding in Voyageurs National Park, Minnesota

Author:
Tyser, Robin W.; Rolfhus, Kristofer R.; Wiener, James G.; Windels, Steve K.; Custer, Thomas W.; Dummer, Paul M.
Source:
Archives of environmental contamination and toxicology 2016 v.71 no.1 pp. 16-25
ISSN:
0090-4341
Subject:
aquatic food webs,   etc   ; Agelaius phoeniceus; Tachycineta bicolor; breeding; eggs; fish; mercury; methylmercury compounds; national parks; nesting; piscivores; risk; songbirds; wetlands; wildlife; Minnesota;     Show all 16 Subjects
Abstract:
... Most investigations of the environmental effects of mercury (Hg) have focused on aquatic food webs that include piscivorous fish or wildlife. However, recent investigations have shown that other species, including passerine songbirds, may also be at risk from exposure to methylmercury (MeHg). We quantified Hg concentrations in eggs of two species of songbirds, red-winged blackbirds (Agelaius phoen ...
DOI:
10.1007/s00244-016-0263-y

404. Bioaccumulation Dynamics of Arsenate at the Base of Aquatic Food Webs

Author:
Lopez, Adeline R.; Hesterberg, Dean R.; Funk, David H.; Buchwalter, David B.
Source:
Environmental Science & Technology 2016 v.50 no.12 pp. 6556-6564
ISSN:
1520-5851
Subject:
aquatic food webs,   etc   ; Ephemeroptera; X-radiation; adsorption; arsenates; arsenic; bioaccumulation; bioavailability; fluorescence; interspecific variation; iron; iron oxides; lotic systems; periphyton; toxicity;     Show all 15 Subjects
Abstract:
... Periphyton is an important food source at the base of freshwater ecosystems that tends to bioconcentrate trace elements making them trophically available. The potential for arsenic–a trace element of particular concern due to its widespread occurrence, toxicity, and carcinogenicity–to bioconcentrate in periphyton and thus be available to benthic grazers is less well characterized. To better unders ...
DOI:
10.1021/acs.est.6b01453

405. Diversity and Distribution of Tardigrada in Arctic Cryoconite Holes

Author:
ZAWIERUCHA, Krzysztof; OSTROWSKA, Marta; VONNAHME, Tobias R.; DEVETTER, Miloslav; NAWROT, Adam P.; LEHMANN, Sara; KOLICKA, Małgorzata
Source:
Journal of limnology 2016 v.75 no.3 pp. 15
ISSN:
1723-8633
Subject:
aquatic food webs,   etc   ; Tardigrada; algae; anions; arsenic; bacteria; cations; chemical analysis; chemical composition; ecosystems; food chain; glaciers; ice; pH; species diversity; tundra; Arctic region; Norway;     Show all 18 Subjects
Abstract:
... Despite the fact that glaciers and ice sheets have been monitored for more than a century, knowledge on the glacial biota remains poor. Cryoconite holes are water-filled reservoirs on a glacier’s surface and one of the most extreme ecosystems for micro-invertebrates. Tardigrada, also known as water bears, are a common inhabitant of cryoconite holes. In this paper we present novel data on the morph ...
DOI:
10.4081/jlimnol.2016.1453

406. Composition and Diversity of Intertidal Microphytobenthos and Phytoplankton in Chesapeake Bay

Author:
Semcheski, Matthew R.; Egerton, Todd A.; Marshall, Harold G.
Source:
Wetlands 2016 v.36 no.3 pp. 483-496
ISSN:
0277-5212
Subject:
aquatic food webs,   etc   ; Bacillariophyceae; Cyanobacteria; benthic organisms; biomass; habitats; littoral zone; microalgae; phylogeny; phytoplankton; salinity; seasonal variation; sediments; surveys; Chesapeake Bay;     Show all 15 Subjects
Abstract:
... Microphytobenthic communities have long been recognized as significant components of aquatic systems and often treated as singular functional elements of benthic habitats. Recent evidence suggests that these communities are phylogenetically diverse, with varying physiological characteristics. Considering their capabilities of nutrient regulation, sediment stabilization, and position in aquatic foo ...
DOI:
10.1007/s13157-016-0756-5

407. Effects of light and nutrients on periphyton and the fatty acid composition and somatic growth of invertebrate grazers in subtropical streams

Author:
Guo, Fen; Kainz, Martin J.; Sheldon, Fran; Bunn, Stuart E.
Source:
Oecologia 2016 v.181 no.2 pp. 449-462
ISSN:
0029-8549
Subject:
aquatic food webs,   etc   ; Ephemeroptera; Trichoptera; algae; alpha-linolenic acid; canopy; eicosapentaenoic acid; fatty acid composition; herbivores; instars; invertebrates; linoleic acid; nutrients; periphyton; reproduction; shade; streams;     Show all 17 Subjects
Abstract:
... Algal polyunsaturated fatty acids (PUFA), essential for somatic growth and reproduction of aquatic animals, are influenced by ambient environmental conditions, including light and nutrients. Few studies have addressed the extent to which changes in algal PUFA can influence stream herbivore PUFA profiles and the implications for stream food webs. We manipulated subtropical stream periphyton by appl ...
DOI:
10.1007/s00442-016-3573-x

408. Embryotoxicity of maternally transferred methylmercury to fathead minnows (Pimephales promelas)

Author:
Bridges, Kristin N.; Soulen, Brianne K.; Overturf, Carmen L.; Drevnick, Paul E.; Roberts, Aaron P.
Source:
Environmental toxicology and chemistry 2016 v.35 no.6 pp. 1436-1441
ISSN:
0730-7268
Subject:
aquatic food webs,   etc   ; Pimephales promelas; adults; aquatic environment; bioaccumulation; clutch size; diet; eggs; embryotoxicity; females; hatching; mercury; methylmercury compounds; minnows; mortality; neurotoxins; spawning;     Show all 17 Subjects
Abstract:
... Mercury (Hg) is a ubiquitous environmental contaminant and potent neurotoxin. In aquatic environments, Hg can be transformed into methylmercury (MeHg), which bioaccumulates in aquatic food webs, including fish. Methylmercury has been shown to transfer from female fish to developing eggs; however, relatively little is known regarding the effects of maternally transferred MeHg on fish embryos. The p ...
DOI:
10.1002/etc.3282

409. Highly unsaturated fatty acids in nature: what we know and what we need to learn

Author:
Twining, Cornelia W.; Brenna, J. Thomas; Hairston, Nelson G., Jr.; Flecker, Alexander S.
Source:
Oikos 2016 v.125 no.6 pp. 749-760
ISSN:
0030-1299
Subject:
aquatic food webs,   etc   ; behavior change; diet; ecosystems; food quality; food research; highly unsaturated fatty acids; humans; invertebrates; secondary productivity; species diversity; subsidies; supply balance; tracer techniques; zooplankton;     Show all 15 Subjects
Abstract:
... The supply and demand of omega‐3 highly unsaturated fatty acids (ω‐3 HUFA) in natural ecosystems may lead to resource limitation in a diverse array of animal taxa. Here, we review why food quality in terms of ω‐3 HUFAs is important, particularly for neural tissue, across a diversity of animal taxa ranging from invertebrate zooplankton to vertebrates (including humans). Our review is focused on ω‐3 ...
DOI:
10.1111/oik.02910

410. Marine protist associations and environmental impacts across trophic levels in the twilight zone and below

Author:
Edgcomb, VP
Source:
Current opinion in microbiology 2016 v.31 pp. 169-175
ISSN:
1369-5274
Subject:
aquatic food webs,   etc   ; biogeochemical cycles; carbon; data collection; environmental impact; grazing; habitats; high-throughput nucleotide sequencing; plankton; protists; symbionts; trophic levels;     Show all 12 Subjects
Abstract:
... Marine protists are integral to marine food webs and exhibit complex relationships with other microbial taxa. Phagotrophic protists contribute significantly to carbon turnover in the sunlit ocean and evidence suggests grazing in the dark ocean can be significant as well. New in situ sampling technologies hold great promise for more accurately accessing these impacts. The molecular signatures of pa ...
DOI:
10.1016/j.mib.2016.04.001

411. Non-consumptive effects of native and invasive predators on juvenile Caribbean parrotfish

Author:
Eaton, Lewis; Sloman, Katherine A.; Wilson, Rod W.; Gill, Andrew B.; Harborne, Alastair R.
Source:
Environmental biology of fishes 2016 v.99 no.5 pp. 499-508
ISSN:
0378-1909
Subject:
aquatic food webs,   etc   ; Pterois volitans; Scarus; behavior change; defensive behavior; foraging; grouper; herbivores; indigenous species; invasive species; juveniles; macroalgae; predation; predators; reefs; swimming; Caribbean;     Show all 17 Subjects
Abstract:
... Non-consumptive effects of predators can have important impacts on aquatic food webs, but there are few data on how predators change the behaviour of Caribbean reef fishes. Such changes may include behavioural responses to the invasive predatory lionfish (Pterois volitans/P. miles). This study used an aquarium experiment to examine the behaviour of herbivorous parrotfish (Scarus iseri) in the abse ...
DOI:
10.1007/s10641-016-0486-9

412. The importance of terrestrial subsidies in stream food webs varies along a stream size gradient

Author:
Collins, Sarah M.; Kohler, Tyler J.; Thomas, Steven A.; Fetzer, William W.; Flecker, Alexander S.
Source:
Oikos 2016 v.125 no.5 pp. 674-685
ISSN:
0030-1299
Subject:
aquatic food webs,   etc   ; algae; biomass; canopy; correlation; detritivores; ecosystems; energy; fish; hydrogen; invertebrates; isotopes; nutrients; plant litter; primary productivity; rivers; streams; subsidies; Adirondacks; Trinidad and Tobago; United States;     Show all 21 Subjects
Abstract:
... Cross system subsidies of energy and materials can be a substantial fraction of food web fluxes in ecosystems, especially when autochthonous production is strongly limited by light or nutrients. We explored whether assimilation of terrestrial energy varied in specific consumer taxa collected from streams of different sizes and resource availabilities. Since headwater streams are often unproductive ...
DOI:
10.1111/oik.02713

413. Arsenic and mercury in lake whitefish and burbot near the abandoned Giant Mine on Great Slave Lake

Author:
Cott, Peter A.; Zajdlik, Barry A.; Palmer, Michael J.; McPherson, Morag D.
Source:
Journal of Great Lakes research 2016 v.42 no.2 pp. 223-232
ISSN:
0380-1330
Subject:
aquatic food webs,   etc   ; Coregonus clupeaformis; Lota lota; adults; aquatic ecosystems; arsenates; arsenic; arsenites; fish; harvesting; juveniles; lakes; liver; mercury; monitoring; muscle tissues; muscles; surface water; Canada;     Show all 19 Subjects
Abstract:
... Contaminant levels in fish are of public concern in northern Canada where they are an important food source. In this study, we investigated the concentration of total arsenic, four arsenic species (arsenite (AsIII), arsenate (AsV), dimethylarsinate (DMA), and monomethylarsonate (MMA)), and total mercury (Hg) in the muscle and liver of lake whitefish (Coregonus clupeaformis) and burbot (Lota lota) ...
DOI:
10.1016/j.jglr.2015.11.004

414. Changing climate cues differentially alter zooplankton dormancy dynamics across latitudes

Author:
Jones, Natalie T.; Gilbert, Benjamin; Phillimore, Albert
Source:
The journal of animal ecology 2016 v.85 no.2 pp. 559-569
ISSN:
0021-8790
Subject:
aquatic food webs,   etc   ; Copepoda; biodiversity; climate; climate change; dormancy; eggs; hatching; ice; lakes; latitude; life history; phenology; photoperiod; sediments; temperature; zooplankton;     Show all 17 Subjects
Abstract:
... In seasonal climates, dormancy is a common strategy that structures biodiversity and is necessary for the persistence of many species. Climate change will likely alter dormancy dynamics in zooplankton, the basis of aquatic food webs, by altering two important hatching cues: mean temperatures during the ice‐free season, and mean day length when lakes become ice free. Theory suggests that these chan ...
DOI:
10.1111/1365-2656.12474

415. Leaf litter species identity alters the structure of pond communities

Author:
Stoler, Aaron B.; Relyea, Rick A.
Source:
Oikos 2016 v.125 no.2 pp. 179-191
ISSN:
0030-1299
Subject:
aquatic food webs,   etc   ; biomass; carbon; ecosystems; fauna; freshwater; habitats; periphyton; phytoplankton; plant litter; ponds; secondary productivity; snails; tadpoles; temperate forests; trees; vertebrates; zooplankton;     Show all 18 Subjects
Abstract:
... The input of leaf litter resources is a major driver of ecosystem processes in terrestrial and freshwater habitats. Although variation exists in the quantity and composition of litter inputs due to natural and anthropogenic causes, few studies have examined how such variation influences the structure and composition of aquatic food webs. Using outdoor mesocosms, we examined the bottom–up effects o ...
DOI:
10.1111/oik.02480

416. Morphological identification and COI barcodes of adult flies help determine species identities of chironomid larvae (Diptera, Chironomidae)

Author:
Failla, A.J.; Vasquez, A.A.; Hudson, P.; Fujimoto, M.; Ram, J.L.
Source:
Bulletin of entomological research 2016 v.106 no.1 pp. 34-46
ISSN:
1475-2670
Subject:
aquatic food webs,   etc   ; barcoding; taxonomy; DNA barcoding; trees; cytochrome-c oxidase; genetic databases; larvae; Chironomidae; imagos; biomass; Great Lakes region; Lake Erie;     Show all 13 Subjects
Abstract:
... Establishing reliable methods for the identification of benthic chironomid communities is important due to their significant contribution to biomass, ecology and the aquatic food web. Immature larval specimens are more difficult to identify to species level by traditional morphological methods than their fully developed adult counterparts, and few keys are available to identify the larval species. ...
DOI:
10.1017/S0007485315000486
PubMed:
26072670

417. Size‐ and condition‐dependent predation: a seabird disproportionately targets substandard individual juvenile salmon

Author:
Tucker, Strahan; Mark Hipfner, J.; Trudel, Marc
Source:
Ecology 2016 v.97 no.2 pp. 461-471
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; Cerorhinca monocerata; Oncorhynchus; body condition; fisheries; juveniles; marine environment; marine fish; predation; predator-prey relationships; predators; salmon; seabirds; surveys; wild fish; British Columbia;     Show all 16 Subjects
Abstract:
... Selection of prey that are small and in poor body condition is a widespread phenomenon in terrestrial predator–prey systems and may benefit prey populations by removing substandard individuals. Similar selection is widely assumed to operate in aquatic systems. Indeed, size‐selective predation is a longstanding and central tenet of aquatic food web theory. However, it is not known if aquatic predat ...
DOI:
10.1890/15-0564.1

418. Systematic detection of BMAA (β-N-methylamino-l-alanine) and DAB (2,4-diaminobutyric acid) in mollusks collected in shellfish production areas along the French coasts

Author:
Réveillon, Damien; Séchet, Véronique; Hess, Philipp; Amzil, Zouher
Source:
Toxicon 2016 v.110 pp. 35-46
ISSN:
0041-0101
Subject:
aquatic food webs,   etc   ; Bacillariophyceae; Bivalvia; amyotrophic lateral sclerosis; coasts; foods; isomers; marine environment; metabolism; microalgae; mussels; neurotoxins; oysters; phytoplankton; shellfish; tissues; France;     Show all 17 Subjects
Abstract:
... The neurotoxin β-N-methylamino-l-alanine (BMAA) is naturally present in some microalgal species in the marine environment. The accumulation of BMAA has widely been observed in filter-feeding bivalves that are known to consume primary producers constituting the base of complex aquatic food webs. This study was performed to assess the occurrence of BMAA and isomers in mollusks collected from nine re ...
DOI:
10.1016/j.toxicon.2015.11.011

419. Processes and pathways of ciguatoxin in aquatic food webs and fish poisoning of seafood consumers

Author:
Yang, Zhiyi; Luo, Qian; Liang, Yan; Mazumder, Asit
Source:
Environmental reviews 2016 v.24 no.2 pp. 144-150
ISSN:
1208-6053
Subject:
aquatic food webs,   etc   ; Gambierdiscus; algal blooms; bioaccumulation; carnivores; ciguatera; ciguatoxin; databases; fish consumption; food chain; grouper; guidelines; herbivores; people; planktivores; poisoning; seafoods; toxicity; trophic levels; French Polynesia;     Show all 20 Subjects
Abstract:
... Ciguatera food poisoning (CFP) is widespread in tropical and sub-tropical waters, and it is the most common food poisoning caused by marine biotoxins. The toxins involved, ciguatoxins, are produced by certain dinoflagellates of the genus Gambierdiscus, and undergo biotransfer and biomagnification up the food web to planktivorous and ultimately, top predator fishes. In this paper, we reviewed the f ...
DOI:
10.1139/er-2015-0054

420. Restoring dissolved organic carbon subsidies from floodplains to lowland river food webs: a role for environmental flows?

Author:
Baldwin, Darren S.; Colloff, Matthew J.; Mitrovic, Simon M.; Bond, Nick R.; Wolfenden, Ben
Source:
Marine & freshwater research 2016 v.67 no.9 pp. 1387-1399
ISSN:
1323-1650
Subject:
aquatic food webs,   etc   ; Animalia; anthropogenic activities; aquatic ecosystems; carbon sinks; dissolved organic carbon; energy; environmental management; floodplains; land use; rivers; subsidies;     Show all 12 Subjects
Abstract:
... Environmental flows are managed events in river systems designed to enhance the ecological condition of aquatic ecosystems. Although not traditionally seen as important in lowland rivers, there is mounting evidence that terrestrial subsidies can be an important energy source in aquatic metazoan food webs. We argue that the apparent lack of importance of terrestrial subsidies to many lowland river ...
DOI:
10.1071/MF15382

421. Early Warnings of Regime Shifts: A Whole-Ecosystem Experiment

Author:
Carpenter, S.R.; Cole, J.J.; Pace, M.L.; Batt, R.; Brock, W.A.; Cline, T.; Coloso, J.; Hodgson, J.R.; Kitchell, J.F.; Seekell, D.A.; Smith, L.; Weidel, B.
Source:
Science 2011 v.332 no.6033 pp. 1079-1082
ISSN:
0036-8075
Subject:
aquatic food webs,   etc   ; ecosystems; lakes; predators; variance;     Show all 5 Subjects
Abstract:
... Catastrophic ecological regime shifts may be announced in advance by statistical early warning signals such as slowing return rates from perturbation and rising variance. The theoretical background for these indicators is rich, but real-world tests are rare, especially for whole ecosystems. We tested the hypothesis that these statistics would be early warning signals for an experimentally induced ...
DOI:
10.1126/science.1203672

422. Use of Stable Isotopes to Trace Municipal Wastewater Effluents into Food Webs within a Highly Developed River System

Author:
Loomer, H. A.; Oakes, K. D.; Schiff, S. L.; Taylor, W. D.; Servos, M. R.
Source:
River research and applications 2015 v.31 no.9 pp. 1093-1100
ISSN:
1535-1459
Subject:
aquatic food webs,   etc   ; aquatic invertebrates; carbon; effluents; fish; lotic systems; municipal wastewater; nitrogen; rivers; stable isotopes; summer; wastewater treatment; Ontario;     Show all 13 Subjects
Abstract:
... Many anthropogenic inputs, such as municipal wastewater effluents (MWWEs), affect stable isotope signatures (δ¹³C and δ¹⁵N) at the base of exposed food webs creating spatial patterns reflecting their incorporation into aquatic food webs. The Grand River in southern Ontario, Canada, is a heavily modified, rapidly urbanizing river that assimilates wastewater from 30 municipal wastewater treatment pl ...
DOI:
10.1002/rra.2826

423. Use of allochthonous resources by zooplankton in reservoirs

Author:
Emery, Kyle A.; Wilkinson, Grace M.; Ballard, Flannery G.; Pace, Michael L.
Source:
Hydrobiologia 2015 v.758 no.1 pp. 257-269
ISSN:
0018-8158
Subject:
aquatic food webs,   etc   ; Chaoborus; Cyanobacteria; biomass; dissolved organic matter; hydrogen; lakes; primary productivity; stable isotopes; statistical models; zooplankton;     Show all 11 Subjects
Abstract:
... Aquatic food webs are supported by primary production from within the system (autochthony) as well as organic matter produced outside of and transported into the system (allochthony). Zooplankton use allochthonous resources, especially in systems with high terrestrial loading and moderate to low internal primary production. We hypothesized that due to high terrestrial loads and remnant submerged t ...
DOI:
10.1007/s10750-015-2338-6

424. Effects of gut content on δ15N, δ13C and C:N of the macroinvertebrate Mysis diluviana

Author:
Euclide, Peter T.; Stockwell, Jason D.
Source:
Journal of Great Lakes research 2015 v.41 pp. 926-929
ISSN:
0380-1330
Subject:
aquatic food webs,   etc   ; Artemia; Mysis diluviana; Scenedesmus obliquus; acclimation; carbon; diet; digestive system; macroinvertebrates; nitrogen; omnivores; stable isotopes;     Show all 12 Subjects
Abstract:
... Stable isotopes have become a popular method for studying aquatic food webs. Lack of laboratory studies and standardized methods, however, may limit the application and interpretation of stable isotope analysis. One procedure applied inconsistently among stable isotope studies for whole body and bulk invertebrate samples is gut evacuation after capture. We evaluated the importance of gut evacuatio ...
DOI:
10.1016/j.jglr.2015.05.002

425. Determinants of community structure in the global plankton interactome

Author:
Lima-Mendez, Gipsi; Faust, Karoline; Henry, Nicolas; Decelle, Johan; Colin, Sébastien; Carcillo, Fabrizio; Chaffron, Samuel; Ignacio-Espinosa, J. Cesar; Roux, Simon; Vincent, Flora; Bittner, Lucie; Darzi, Youssef; Wang, Jun; Audic, Stéphane; Berline, Léo; Bontempi, Gianluca; Cabello, Ana M.; Coppola, Laurent; Cornejo-Castillo, Francisco M.; d'Ovidio, Francesco; De Meester, Luc; Ferrera, Isabel; Garet-Delmas, Marie-José; Guidi, Lionel; Lara, Elena; Pesant, Stéphane; Royo-Llonch, Marta; Salazar, Guillem; Sánchez, Pablo; Sebastian, Marta; Souffreau, Caroline; Dimier, Céline; Picheral, Marc; Searson, Sarah; Kandels-Lewis, Stefanie; Gorsky, Gabriel; Not, Fabrice; Ogata, Hiroyuki; Speich, Sabrina; Stemmann, Lars; Weissenbach, Jean; Wincker, Patrick; Acinas, Silvia G.; Sunagawa, Shinichi; Bork, Peer; Sullivan, Matthew B.; Karsenti, Eric; Bowler, Chris; de Vargas, Colomban; Raes, Jeroen
Source:
Science 2015 v.348 no.6237 pp. 1262073
ISSN:
0036-8075
Subject:
aquatic food webs,   etc   ; biotic factors; community structure; environmental factors; euphotic zone; microscopy; models; oceans; phylogeny; plankton; symbionts; symbiosis; viruses;     Show all 13 Subjects
Abstract:
... Species interaction networks are shaped by abiotic and biotic factors. Here, as part of the Tara Oceans project, we studied the photic zone interactome using environmental factors and organismal abundance profiles and found that environmental factors are incomplete predictors of community structure. We found associations across plankton functional types and phylogenetic groups to be nonrandomly di ...
DOI:
10.1126/science.1262073

426. Proposed best modeling practices for assessing the effects of ecosystem restoration on fish

Author:
Rose, Kenneth A.; Sable, Shaye; DeAngelis, Donald L.; Yurek, Simeon; Trexler, Joel C.; Graf, William; Reed, Denise J.
Source:
Ecological modelling 2015 v.300 pp. 12-29
ISSN:
0304-3800
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; case studies; ecological restoration; economic costs; fish; model validation; models; uncertainty; wetlands; Colorado River; Louisiana;     Show all 12 Subjects
Abstract:
... Large-scale aquatic ecosystem restoration is increasing and is often controversial because of the economic costs involved, with the focus of the controversies gravitating to the modeling of fish responses. We present a scheme for best practices in selecting, implementing, interpreting, and reporting of fish modeling designed to assess the effects of restoration actions on fish populations and aqua ...
DOI:
10.1016/j.ecolmodel.2014.12.020

427. Isomer-Specific Trophic Transfer of Perfluorocarboxylic Acids in the Marine Food Web of Liaodong Bay, North China

Author:
Zhang, Zhong; Peng, Hui; Wan, Yi; Hu, Jianying
Source:
Environmental Science & Technology 2015 v.49 no.3 pp. 1453-1461
ISSN:
1520-5851
Subject:
aquatic food webs,   etc   ; Laridae; acids; bioaccumulation; birds; derivatization; fish; gas chromatography-mass spectrometry; invertebrates; isomers; perfluorooctanoic acid; trophic levels; China;     Show all 13 Subjects
Abstract:
... Trophic transfers of perfluorocarboxylic acids (PFCAs) have been well studied in aquatic food webs; however, most studies examined PFCAs as single compounds without differentiating isomers. In this study, an in-port derivatization GC-MS method was used to determine PFCA (perfluorooctanoic acid, PFOA; perfluorononanoic acid, PFNA; perfluorodecanoate acid, PFDA; perfluoroundecanoate acid, PFUnDA; pe ...
DOI:
10.1021/es504445x

428. A pathway to identifying and valuing cultural ecosystem services: An application to marine food webs

Author:
Baulcomb, Corinne; Fletcher, Ruth; Lewis, Amy; Akoglu, Ekin; Robinson, Leonie; von Almen, Amanda; Hussain, Salman; Glenk, Klaus
Source:
Ecosystem services 2015 v.11 pp. 128-139
ISSN:
2212-0416
Subject:
aquatic food webs,   etc   ; case studies; economic valuation; ecosystem services; marine environment; questionnaires; recreation; surveys; Black Sea; Turkey (country);     Show all 10 Subjects
Abstract:
... Beyond recreation, little attention has been paid thus far to economically value Cultural Ecosystem Services (CESs), especially in the context of coastal or marine environment. This paper develops and tests a pathway to the identification and economic valuation of CESs. The pathway enables researchers to make more explicit, and to economically value, cultural dimensions of environmental change. We ...
DOI:
10.1016/j.ecoser.2014.10.013

429. Aquatic hyphomycetes: a potential source of polyunsaturated fatty acids in detritus-based stream food webs

Author:
Arce Funck, J.; Bec, A.; Perrière, F.; Felten, V.; Danger, M.
Source:
Fungal ecology 2015 v.13 pp. 205-210
ISSN:
1754-5048
Subject:
aquatic food webs,   etc   ; Hyphomycetes; autotrophs; carbohydrates; detritivores; ecosystems; essential fatty acids; phosphorus; polyunsaturated fatty acids; proteins; streams;     Show all 11 Subjects
Abstract:
... To date, aquatic hyphomycetes have mainly been considered as a source of carbohydrates, mineral elements and proteins for detritivores in detritus-based headwater streams. Yet, consumers are highly dependent on other molecules, such as essential fatty acids, to complete their biological cycle. These molecules might be limiting in detritus-based ecosystems since they are primarily synthesized by au ...
DOI:
10.1016/j.funeco.2014.09.004

430. A food web analysis of the Río de la Plata estuary and adjacent shelf ecosystem: trophic structure, biomass flows, and the role of fisheries

Author:
Lercari, Diego; Horta, Sebastían; Martínez, Gastón; Calliari, Danilo; Bergamino, Leandro
Source:
Hydrobiologia 2015 v.742 no.1 pp. 39-58
ISSN:
0018-8158
Subject:
aquatic food webs,   etc   ; biomass; detritivores; ecosystems; estuaries; fisheries; growth and development; herbivores; models; monitoring; primary productivity; secondary productivity; traditional technology;     Show all 13 Subjects
Abstract:
... This article performed a comprehensive assessment of the structure and functioning of the Río de la Plata estuary and adjacent shelf ecosystem, including the effect of fishing. A formerly implemented 37 trophic groups’ mass-balance model (Ecopath) was used to (1) evaluate the particular role of individual biotic components on the ecosystem; (2) characterize the ecosystem in terms of aquatic food w ...
DOI:
10.1007/s10750-014-1964-8

431. Inducible defenses as factor determining trophic pathways in a food web

Author:
Sakamoto, Masaki; Nagata, Takamaru; Ha, Jin-Yong; Kimijima, Sho; Hanazato, Takayuki; Chang, Kwang-Hyeon
Source:
Hydrobiologia 2015 v.743 no.1 pp. 15-25
ISSN:
0018-8158
Subject:
aquatic food webs,   etc   ; Leptodora kindtii; carbon; equations; invertebrates; lakes; models; monitoring; mortality; nitrogen; population growth; predation; stable isotopes; summer; Japan;     Show all 15 Subjects
Abstract:
... Understanding functional roles of prey defense in biological interactions remains a major task in food web ecology. We investigated the role of an inducible defense as a factor that influences the trophic pathway in an aquatic food web. Quantitative information on food web structure in Lake Suwa (a eutrophic lake in Japan) was provided by carbon and nitrogen stable isotope analyses using samples t ...
DOI:
10.1007/s10750-014-1999-x

432. The Influence of Littoral on Mercury Bioaccumulation in a Humic Lake

Author:
Lindholm, Markus; de Wit, Heleen A.; Eriksen, Tor Erik; Braaten, Hans Fredrik Veiteberg
Source:
Water, air, and soil pollution 2014 v.225 no.10 pp. 2141
ISSN:
0049-6979
Subject:
aquatic food webs,   etc   ; bioaccumulation; food chain; habitats; lakes; mercury; methylation; methylmercury compounds; morphometry; sediments;     Show all 10 Subjects
Abstract:
... Concentration of methylmercury (MeHg) in different habitats and associated food chains may vary because of habitat characteristics that determine methylation and MeHg transfer. We examined MeHg levels in primary consumers from littoral, pelagial and profundal habitats of a boreal humic lake, and measured total mercury (TotHg) and MeHg in surface sediments at increasing depths. MeHg concentrations ...
DOI:
10.1007/s11270-014-2141-4

433. Species‐specific separation of lake plankton reveals divergent food assimilation patterns in rotifers

Author:
Burian, Alfred; Kainz, Martin J.; Schagerl, Michael; Yasindi, Andrew
Source:
Freshwater biology 2014 v.59 no.6 pp. 1257-1265
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; Arthrospira fusiformis; Brachionus plicatilis; fish; foods; lakes; population density; stable isotopes; zooplankton;     Show all 9 Subjects
Abstract:
... The analysis of functional groups with a resolution to the individual species level is a basic requirement to better understand complex interactions in aquatic food webs. Species‐specific stable isotope analyses are currently applied to analyse the trophic role of large zooplankton or fish species, but technical constraints complicate their application to smaller‐sized plankton. We investigated ro ...
DOI:
10.1111/fwb.12345
PubMed:
25866422
PubMed Central:
PMC4386476

434. Terrestrial carbon is a resource, but not a subsidy, for lake zooplankton

Author:
Kelly, Patrick T.; Solomon, Christopher T.; Weidel, Brian C.; Jones, Stuart E.
Source:
Ecology 2014 v.95 no.5 pp. 1236-1242
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; adverse effects; carbon; habitats; lakes; surveys; tissues; zooplankton;     Show all 8 Subjects
Abstract:
... Inputs of terrestrial organic carbon (t‐OC) into lakes are often considered a resource subsidy for aquatic consumer production. Although there is evidence that terrestrial carbon can be incorporated into the tissues of aquatic consumers, its ability to enhance consumer production has been debated. Our research aims to evaluate the net effect of t‐OC input on zooplankton. We used a survey of zoopla ...
DOI:
10.1890/13-1586.1

435. Synthetic estrogen directly affects fish biomass and may indirectly disrupt aquatic food webs

Author:
Hallgren, Per; Nicolle, Alice; Hansson, Lars‐Anders; Brönmark, Christer; Nikoleris, Lina; Hyder, Murtaza; Persson, Anders
Source:
Environmental toxicology and chemistry 2014 v.33 no.4 pp. 930-936
ISSN:
0730-7268
Subject:
aquatic food webs,   etc   ; Copepoda; Rutilus rutilus; biomass; fish; foraging; freshwater; phytoplankton; predation; reproduction; zooplankton;     Show all 11 Subjects
Abstract:
... Endocrine‐disrupting chemicals are known to alter the fitness of individual organisms via changes in growth, behavior, and reproduction. It is largely unknown, however, whether these effects cascade through the food web and indirectly affect other, less sensitive organisms. The authors present results from a mesocosm experiment whereby the effects of the synthetic estrogen 17α‐ethinylestradiol (EE ...
DOI:
10.1002/etc.2528
PubMed:
24615795

436. Effects of biomass changes in the supply–demand balance of energy in aquatic food webs

Author:
Salcido-Guevara, Luis A.; Arreguín-Sánchez, Francisco
Source:
Ecological modelling 2014 v.276 pp. 64-79
ISSN:
0304-3800
Subject:
aquatic food webs,   etc   ; biomass; ecosystems; energy balance; energy flow; metabolism; models; predators;     Show all 8 Subjects
Abstract:
... Due to the complex interactions between the community and its environment, understanding the behaviour of ecosystems is a difficult and laborious task. In this paper, we study several aspects of the ecosystem characterised by food webs and how their energy balance is affected by changes in biomass and the availability of resources required for self-maintenance. Ecosystem behaviour, as expressed th ...
DOI:
10.1016/j.ecolmodel.2014.01.008

437. Effects of a non-native cichlid fish (African jewelfish, Hemichromis letourneuxi Sauvage 1880) on a simulated Everglades aquatic community

Author:
Schofield, Pamela J.; Slone, Daniel H.; Gregoire, Denise R.; Loftus, William F.
Source:
Hydrobiologia 2014 v.722 no.1 pp. 171-182
ISSN:
0018-8158
Subject:
aquatic food webs,   etc   ; Cichlidae; Gambusia holbrooki; Lepomis; Palaemonetes; Pomacea paludosa; indigenous species; shrimp; snails; Florida;     Show all 10 Subjects
Abstract:
... In an 8-month mesocosm experiment, we examined how a simulated Everglades aquatic community of small native fishes, snails, and shrimp changed with the addition of either a native predator (dollar sunfish Lepomis marginatus) or a non-native predator (African jewelfish Hemichromis letourneuxi) compared to a no-predator control. Two snail species (Planorbella duryi, Physella cubensis) and the shrimp ...
DOI:
10.1007/s10750-013-1697-0

438. Isotopic metrics as a tool for assessing the effects of mine pollution on stream food webs

Author:
Hogsden, Kristy L.; Harding, Jon S.
Source:
Ecological indicators 2014 v.36 pp. 339-347
ISSN:
1470-160X
Subject:
aquatic food webs,   etc   ; acid mine drainage; aluminum; biocenosis; ecosystems; iron; mining; pH; pollution; streams; trophic levels;     Show all 11 Subjects
Abstract:
... Most tools used to assess pollution impacts are based on structural, or less frequently, functional aspects of biotic communities. However, the application of measures that take a food web approach to understand the effects of stress on stream ecosystems offers a new perspective and promising insights. We assessed quantitative isotopic metrics, which describe characteristics of food web structure, ...
DOI:
10.1016/j.ecolind.2013.08.003

439. Multiple diversity–stability mechanisms enhance population and community stability in aquatic food webs

Author:
Downing, Amy L.; Brown, Bryan L.; Leibold, Mathew A.
Source:
Ecology 2014 v.95 no.1 pp. 173-184
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; ecosystems; immigration; prediction; rare species; species diversity; zooplankton;     Show all 7 Subjects
Abstract:
... Biodiversity has been shown to increase the temporal stability of community and ecosystem attributes through multiple mechanisms, but these same mechanisms make less consistent predictions about the effects of richness on population stability. The overall effects of biodiversity on population and community stability will therefore depend on the dominant mechanisms that are likely to vary with the ...
DOI:
10.1890/12-1406.1

440. Rebuilding and comparing pyramids of numbers (Elton) and energy (Lindeman) with selected global δ¹⁵N data

Author:
France, R. L.
Source:
Hydrobiologia 2014 v.722 no.1 pp. 1-7
ISSN:
0018-8158
Subject:
aquatic food webs,   etc   ; animals; biomass; energy; food analysis; isotopes; nitrogen; omnivores;     Show all 8 Subjects
Abstract:
... Widespread omnivory in aquatic food webs has been recognized to compromise interpretation of Lindeman’s “pyramid of energy” wherein organism biomass is constrained into rigidly delineated trophic levels. A compilation of global, pre-1997 stable nitrogen isotope data for aquatic food webs produced vertical energy profiles that were ataxonomic and therefore similar to Elton’s “pyramid of numbers” wh ...
DOI:
10.1007/s10750-013-1710-7

441. Flow variability and longitudinal characteristics of organic carbon in the Lachlan River, Australia

Author:
Moran, Nicholas P.; Ganf, George G.; Wallace, Todd A; Brookes, Justin D.
Source:
Marine & freshwater research 2014 v.65 no.1 pp. 50-58
ISSN:
1323-1650
Subject:
aquatic food webs,   etc   ; correlation; rivers; energy; weirs; dissolved organic carbon; oxygen; ecosystems; biochemical oxygen demand; Australia;     Show all 10 Subjects
Abstract:
... Heterotrophic organic-carbon cycling is a major source of energy to aquatic food webs, yet there are few studies into patterns of heterotrophic productivity in large lowland rivers. The Lachlan River experienced a period of extreme flow variability from September 2010 to February 2011; for example, daily discharge (MLday-1) at one site reached >22 times its 10-year average. Heterotrophic cycling o ...
DOI:
10.1071/MF12297

442. “Trophic overyielding”: Phytoplankton diversity promotes zooplankton productivity

Author:
Striebel, Maren; Singer, Gabriel; Stibor, Herwig; Andersen, Tom
Source:
Ecology 2012 v.93 no.12 pp. 2719-2727
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; Daphnia; biodiversity; biomass; elemental composition; phytoplankton; zooplankton;     Show all 7 Subjects
Abstract:
... Diversity–productivity relationships at the primary producer level have been extensively studied, especially for terrestrial systems. Here, we explore whether the diversity of aquatic primary producers (phytoplankton) has effects on higher trophic levels (zooplankton). We investigated the effect of phytoplankton diversity on an artificial zooplankton community in a laboratory experiment where phyt ...
DOI:
10.1890/12-0003.1

443. Comparing the fish assemblages and food‐web structures of large floodplain rivers

Author:
Taylor, Geraldine C.; Weyl, Olaf L. F.; Hill, Jaclyn M.; Peel, Richard A.; Hay, Clinton J.
Source:
Freshwater biology 2017 v.62 no.11 pp. 1891-1907
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; algae; biodiversity; biomass; climate change; data collection; ecosystem management; ecosystem services; ecosystems; fish; fish communities; floodplains; floods; food chain; gillnets; growth and development; human population; isotopes; macrophytes; nitrogen; population growth; predators; prediction; riparian vegetation; rivers; temporal variation; Southern Africa;     Show all 27 Subjects
Abstract:
... The Upper Zambezi, Kavango and Kwando are large floodplain rivers with substantial biodiversity, providing water and ecosystem services to a large tract of southern Africa. These rivers differ in hydrological regime. The Upper Zambezi and Kavango rivers are in flood for 4 months (March, April, May, June) while, in the Kwando River, floods are later and last for 1–2 months in July and August. The U ...
DOI:
10.1111/fwb.13032

444. Climate change–contaminant interactions in marine food webs: Toward a conceptual framework

Author:
Alava, Juan José; Cheung, William W. L.; Ross, Peter S.; Sumaila, U. Rashid
Source:
Global change biology 2017 v.23 no.10 pp. 3984-4001
ISSN:
1354-1013
Subject:
aquatic food webs,   etc   ; bioaccumulation; case studies; climate; climate change; decision making; ecosystem services; fisheries; fishery resources; greenhouse gases; human health; human population; issues and policy; methylmercury compounds; models; ocean acidification; oceans; persistent organic pollutants; physiology; polychlorinated biphenyls; protein binding; recreation; risk; Pacific Ocean;     Show all 24 Subjects
Abstract:
... Climate change is reshaping the way in which contaminants move through the global environment, in large part by changing the chemistry of the oceans and affecting the physiology, health, and feeding ecology of marine biota. Climate change‐associated impacts on structure and function of marine food webs, with consequent changes in contaminant transport, fate, and effects, are likely to have signifi ...
DOI:
10.1111/gcb.13667

445. Does a short-term exposure to atrazine provoke cellular senescence in Chlamydomonas reinhardtii?

Author:
Esperanza, Marta; Houde, Magali; Seoane, Marta; Cid, Ángeles; Rioboo, Carmen
Source:
Aquatic toxicology 2017 v.189 pp. 184-193
ISSN:
0166-445X
Subject:
aquatic food webs,   etc   ; Chlamydomonas reinhardtii; acute exposure; ascorbate peroxidase; atrazine; calcium; caspases; catalase; cell senescence; cell viability; genes; glutathione peroxidase; glutathione transferase; lipid peroxidation; lipids; mechanism of action; microalgae; quantitative polymerase chain reaction; reactive oxygen species; reverse transcriptase polymerase chain reaction; superoxide dismutase; transcription (genetics); vacuoles;     Show all 23 Subjects
Abstract:
... The aim of this study was to investigate the impacts and modes of action of a chemical and nutrient deprivation on the cellular senescence process of Chlamydomonas reinhardtii. Several molecular and cellular parameters related to senescence phenomena were monitored in C. reinhardtii cells exposed for 24h to a sublethal concentration (0.25μM) of the herbicide atrazine and in unexposed 96h cells in ...
DOI:
10.1016/j.aquatox.2017.06.015

446. Legacy effects of drought alters the aquatic food web of a northern boreal peatland

Author:
DeColibus, Dawn T.; Rober, Allison R.; Sampson, Avery M.; Shurzinske, Amanda C.; Walls, Jeremy T.; Turetsky, Merritt R.; Wyatt, Kevin H.
Source:
Freshwater biology 2017 v.62 no.8 pp. 1377-1388
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; aquatic communities; aquatic ecosystems; bacteria; biofilm; biomass; carbon; climate change; community structure; drought; energy flow; energy transfer; grazing; growing season; latitude; macroinvertebrates; microalgae; mosses and liverworts; nitrogen; nutrient availability; nutrient content; peat; peatlands; periphyton; predators; sediments; stable isotopes; trophic levels; water table;     Show all 29 Subjects
Abstract:
... Compared to other temporary aquatic ecosystems, we know relatively little about how inundation frequency and duration (i.e. hydrologic regime) influences the structure of aquatic communities in northern peatlands. In this study, we examined patterns in nutrient availability and aquatic community structure during a natural flooding event in an Alaskan fen where water‐table position had been manipul ...
DOI:
10.1111/fwb.12950

447. How important are terrestrial organic carbon inputs for secondary production in freshwater ecosystems?

Author:
Brett, Michael T.; Bunn, Stuart E.; Chandra, Sudeep; Galloway, Aaron W. E.; Guo, Fen; Kainz, Martin J.; Kankaala, Paula; Lau, Danny C. P.; Moulton, Timothy P.; Power, Mary E.; Rasmussen, Joseph B.; Taipale, Sami J.; Thorp, James H.; Wehr, John D.
Source:
Freshwater biology 2017 v.62 no.5 pp. 833-853
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; trophic levels; primary productivity; lignocellulose; animal production; dissolved organic carbon; fish; stable isotopes; zooplankton; essential fatty acids; lakes; reproduction; bioavailability; food quality; oxygen; freshwater; secondary productivity; freshwater ecosystems; heat; herbivores; rivers; fruits; plant litter; nitrogen; essential amino acids; aquatic invertebrates; streams; particulate organic carbon; subsidies; microalgae; bacteria;     Show all 31 Subjects
Abstract:
... Many freshwater systems receive substantial inputs of terrestrial organic matter. Terrestrially derived dissolved organic carbon (t‐DOC) inputs can modify light availability, the spatial distribution of primary production, heat, and oxygen in aquatic systems, as well as inorganic nutrient bioavailability. It is also well‐established that some terrestrial inputs (such as invertebrates and fruits) p ...
DOI:
10.1111/fwb.12909

448. Diet of the Torrent Sculpin, Cottus rhotheus, in the Cedar River, Washington: Effect of Season, Habitat Type, and Predator Size with Emphasis on Piscivory

Author:
Tabor, Roger A; Peters, Roger J; Berge, Hans B; Lantz, Daniel W; Piaskowski, Richard M
Source:
Northwestern naturalist 2016 v.97 no.3 pp. 190-204
ISSN:
1051-1733
Subject:
aquatic food webs,   etc   ; Catostomus macrocheilus; Chironomidae; Cottus rhotheus; Cottus schitsuumsh; Ephemeroptera; Oligochaeta; Oncorhynchus nerka; Oncorhynchus tshawytscha; Plecoptera; aquatic insects; diet; ecosystems; eggs; environmental factors; feeding methods; fish; habitat preferences; habitats; juveniles; nutrition information; piscivores; predation; rivers; summer; Washington (state);     Show all 26 Subjects
Abstract:
... Torrent Sculpin (Cottus rhotheus) can play an important role in riverine ecosystems in the Pacific Northwest, but factors that influence their feeding ecology are not well understood. To better understand how environmental conditions may influence the diet of Torrent Sculpin in the Cedar River, Washington, we collected diet information from fish across seasons and habitats. Numerically, aquatic in ...
DOI:
10.1898/NWN15-09.1

449. Organochlorine Pesticide Residues in Caudal Scutes of Belize Morelet's Crocodiles (Crocodylus moreletii)

Author:
Sherwin, Brie D.; Mudge, Joseph F.; Cañas-Carrell, Jaclyn E.; Lanza, Heather A.; Rainwater, Thomas R.; Platt, Steven G.; McMurry, Scott T.; Anderson, Todd A.
Source:
Journal of Herpetology 2016 v.50 no.4 pp. 552-558
ISSN:
0022-1511
Subject:
aquatic food webs,   etc   ; Crocodylus moreletii; DDD (pesticide); DDE (pesticide); DDT (pesticide); adults; age structure; cartilage; crocodiles; diet; habitats; juveniles; methoxychlor; muscles; pesticide residues; progeny; risk; rivers; tail; wildlife; wildlife management; Belize;     Show all 22 Subjects
Abstract:
... Historically, Belize has used large quantities of organochlorine (OC) pesticides for agriculture and disease-vector control, yet few tools exist for noninvasive assessment of OC contaminant loads in Belize wildlife. Crocodile caudal (tail) scutes are clipped as a marking technique in wildlife management programs and may also have utility as a minimally invasive, nonlethal technique to assess conta ...
DOI:
10.1670/14-029

450. Lake eutrophication and brownification downgrade availability and transfer of essential fatty acids for human consumption

Author:
Taipale, S.J.; Vuorio, K.; Strandberg, U.; Kahilainen, K.K.; Järvinen, M.; Hiltunen, M.; Peltomaa, E.; Kankaala, P.
Source:
Environment international 2016 v.96 pp. 156-166
ISSN:
0160-4120
Subject:
aquatic food webs,   etc   ; Miozoa; Perca fluviatilis; biomass production; birds; diet; dissolved organic carbon; docosahexaenoic acid; eicosapentaenoic acid; essential fatty acids; eutrophication; highly unsaturated fatty acids; humans; lakes; muscles; nutritive value; perch; phosphorus; phytoplankton; piscivores; predatory fish; trophic levels;     Show all 22 Subjects
Abstract:
... Fish are an important source of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) for birds, mammals and humans. In aquatic food webs, these highly unsaturated fatty acids (HUFA) are essential for many physiological processes and mainly synthetized by distinct phytoplankton taxa. Consumers at different trophic levels obtain essential fatty acids from their diet because they cannot produce ...
DOI:
10.1016/j.envint.2016.08.018

451. Trophic relationships and ecosystem functioning of Bakreswar Reservoir, India

Author:
Banerjee, Arnab; Banerjee, Moitreyee; Mukherjee, Joyita; Rakshit, Nabyendu; Ray, Santanu
Source:
Ecological informatics 2016 v.36 pp. 50-60
ISSN:
1574-9541
Subject:
aquatic food webs,   etc   ; autotrophs; computer software; developing countries; ecosystems; freshwater; hybrids; lakes; littoral zone; macrophytes; models; omnivores; pedigree; primary productivity; rivers; surface water; water analysis; water quantity; zooplankton; India;     Show all 20 Subjects
Abstract:
... Reservoirs are artificial water bodies having social application and hybrid characters of both river and lake. Thorough analysis of water quantity and quality is necessary to ensure the health of these ecosystems, as they are considered one of the major water sources in developing countries. Biological subsystem of reservoirs consists of both autotrophs and heterotrophs in the open zone and littor ...
DOI:
10.1016/j.ecoinf.2016.09.006

452. Hydrologic indicators of hot spots and hot moments of mercury methylation potential along river corridors

Author:
Singer, Michael Bliss; Harrison, Lee R.; Donovan, Patrick M.; Blum, Joel D.; Marvin-DiPasquale, Mark
Source:
The Science of the total environment 2016 v.568 pp. 697-711
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; Salmonidae; bioaccumulation; biogeochemical cycles; drainage; floodplains; floods; gold; humans; loci; mercury; methylation; methylmercury compounds; microbial activity; migratory behavior; mining; models; neurotoxins; risk; rivers; sediment contamination; sediments; spawning; waterfowl; California;     Show all 25 Subjects
Abstract:
... The biogeochemical cycling of metals and other contaminants in river-floodplain corridors is controlled by microbial activity responding to dynamic redox conditions. Riverine flooding thus has the potential to affect speciation of redox-sensitive metals such as mercury (Hg). Therefore, inundation history over a period of decades potentially holds information on past production of bioavailable Hg. ...
DOI:
10.1016/j.scitotenv.2016.03.005

453. Mercury in western North America: A synthesis of environmental contamination, fluxes, bioaccumulation, and risk to fish and wildlife

Author:
Eagles-Smith, Collin A.; Wiener, James G.; Eckley, Chris S.; Willacker, James J.; Evers, David C.; Marvin-DiPasquale, Mark; Obrist, Daniel; Fleck, Jacob A.; Aiken, George R.; Lepak, Jesse M.; Jackson, Allyson K.; Webster, Jackson P.; Stewart, A. Robin; Davis, Jay A.; Alpers, Charles N.; Ackerman, Joshua T.
Source:
The Science of the total environment 2016 v.568 pp. 1213-1226
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; air; aquatic ecosystems; bioaccumulation; climate; fish; geomorphology; humans; land cover; landscapes; mercury; methylation; methylmercury compounds; mining; pollution; resource management; risk; sediments; soil; vegetation; water management; wildlife; North America;     Show all 23 Subjects
Abstract:
... Western North America is a region defined by extreme gradients in geomorphology and climate, which support a diverse array of ecological communities and natural resources. The region also has extreme gradients in mercury (Hg) contamination due to a broad distribution of inorganic Hg sources. These diverse Hg sources and a varied landscape create a unique and complex mosaic of ecological risk from ...
DOI:
10.1016/j.scitotenv.2016.05.094

454. Multispecies Biofilms Transform Selenium Oxyanions into Elemental Selenium Particles: Studies Using Combined Synchrotron X-ray Fluorescence Imaging and Scanning Transmission X-ray Microscopy

Author:
Yang, Soo In; George, Graham N.; Lawrence, John R.; Kaminskyj, Susan G. W.; Dynes, James J.; Lai, Barry; Pickering, Ingrid J.
Source:
Environmental Science & Technology 2016 v.50 no.19 pp. 10343-10350
ISSN:
1520-5851
Subject:
aquatic food webs,   etc   ; X-radiation; X-ray absorption spectroscopy; bioaccumulation; bioavailability; biofilm; biogeochemical cycles; carbon; fluorescence; image analysis; lipids; metals; nanoparticles; oxyanions; polysaccharides; selenium; toxic substances; transmission electron microscopy;     Show all 18 Subjects
Abstract:
... Selenium (Se) is an element of growing environmental concern, because low aqueous concentrations can lead to biomagnification through the aquatic food web. Biofilms, naturally occurring microbial consortia, play numerous important roles in the environment, especially in biogeochemical cycling of toxic elements in aquatic systems. The complexity of naturally forming multispecies biofilms presents c ...
DOI:
10.1021/acs.est.5b04529

455. Overview of the potent cyanobacterial neurotoxin β-methylamino-L-alanine (BMAA) and its analytical determination

Author:
Porojan, Cristina; Mitrovic, Simon M.; Yeo, Darren C. J.; Furey, Ambrose
Source:
Food additives & contaminants 2016 v.33 no.10 pp. 1570-1586
ISSN:
1944-0057
Subject:
aquatic food webs,   etc   ; Cyanobacteria; algae; brackish water; cytotoxicity; etiology; exposure pathways; hepatotoxicity; mass spectrometry; neurodegenerative diseases; neurotoxicity; neurotoxins; nonprotein amino acids; patients; temperate zones; ultra-performance liquid chromatography; Baltic Sea; Europe; Guam; Qatar;     Show all 20 Subjects
Abstract:
... Blue-green algae are responsible for the production of different types of toxins which can be neurotoxic, hepatotoxic, cytotoxic and dermatotoxic and that can affect both aquatic and terrestrial life. Since its discovery the neurotoxin β-methylamino-L-alanine (BMAA) has been a cause for concern, being associated with the neurodegenerative disease amyotrophic lateral sclerosis/Parkinsonism–dementia ...
DOI:
10.1080/19440049.2016.1217070

456. Retrospective analysis of organophosphate flame retardants in herring gull eggs and relation to the aquatic food web in the Laurentian Great Lakes of North America

Author:
Greaves, Alana K.; Letcher, Robert J.; Chen, Da; McGoldrick, Daryl J.; Gauthier, Lewis T.; Backus, Sean M.
Source:
Environmental research 2016 v.150 pp. 255-263
ISSN:
0013-9351
Subject:
aquatic food webs,   etc   ; Alosa pseudoharengus; Larus argentatus; Osmerus mordax; Salvelinus namaycush; aquatic ecosystems; bioaccumulation; bromination; diet; eggs; fish; flame retardants; nesting sites; organophosphorus compounds; phosphates; retrospective studies; rocks; Lake Erie; Ontario;     Show all 19 Subjects
Abstract:
... With the phase-out and regulation of some flame retardant chemicals, the production and usage of organophosphate triester flame retardants (OPFRs) has increased in recent years. In the present study, 14 OPFRs (either chlorinated, brominated or non-halogenated) were analyzed in egg pools of 10-13 individual herring gull eggs from five colonial nesting sites for 11 years spanning 1990–2010, (for a t ...
DOI:
10.1016/j.envres.2016.06.006

457. Modelling ecological and human exposure to POPs in Venice lagoon. Part I — Application of MERLIN-Expo tool for integrated exposure assessment

Author:
Giubilato, Elisa; Radomyski, Artur; Critto, Andrea; Ciffroy, Philippe; Brochot, Céline; Pizzol, Lisa; Marcomini, Antonio
Source:
The Science of the total environment 2016 v.565 pp. 961-976
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; adults; bioaccumulation; blood; dioxins; ecosystems; emissions; environmental fate; exposure scenario; fish; health hazards; human health; humans; invertebrates; men; monitoring; persistent organic pollutants; phytoplankton; polychlorinated biphenyls; seafoods; sediments; simulation models; time series analysis; tissues; Italy;     Show all 25 Subjects
Abstract:
... Industrial and urban emissions over several decades left a legacy of contamination by persistent organic pollutants in the sediments of Venice lagoon (Italy), which might still represent a hazard for the health of ecosystems and population. A new modelling tool for integrated exposure assessment, MERLIN-Expo, was applied to simulate integrated ecological and human exposure to PCBs and dioxins. MER ...
DOI:
10.1016/j.scitotenv.2016.04.146

458. Dissolved organic carbon modulates mercury concentrations in insect subsidies from streams to terrestrial consumers

Author:
Chaves‐Ulloa, Ramsa; Taylor, Brad W.; Broadley, Hannah J.; Cottingham, Kathryn L.; Baer, Nicholas A.; Weathers, Kathleen C.; Ewing, Holly A.; Chen, Celia Y.
Source:
Ecological applications 2016 v.26 no.6 pp. 1771-1784
ISSN:
1051-0761
Subject:
aquatic food webs,   etc   ; predators; watersheds; dissolved organic carbon; fish; insect larvae; lakes; bioavailability; data collection; Araneae; methylmercury compounds; imagos; aquatic insects; bioaccumulation; soil food webs; piscivores; toxicity; mercury; aquatic environment; environmental factors; streams; subsidies; New Hampshire;     Show all 23 Subjects
Abstract:
... Mercury (Hg) concentrations in aquatic environments have increased globally, exposing consumers of aquatic organisms to high Hg levels. For both aquatic and terrestrial consumers, exposure to Hg depends on their food sources as well as environmental factors influencing Hg bioavailability. The majority of the research on the transfer of methylmercury (MeHg), a toxic and bioaccumulating form of Hg, ...
DOI:
10.1890/15-0025.1
PubMed:
27755696
PubMed Central:
PMC5070544

459. Biochemical and toxicological effects of organic (herbicide Primextra® Gold TZ) and inorganic (copper) compounds on zooplankton and phytoplankton species

Author:
Filimonova, Valentina; Gonçalves, Fernando; Marques, João C.; De Troch, Marleen; Gonçalves, Ana M.M.
Source:
Aquatic toxicology 2016 v.177 pp. 33-43
ISSN:
0166-445X
Subject:
aquatic food webs,   etc   ; Acartia tonsa; Artemia franciscana; Bacillariophyceae; Thalassiosira; cooperatives; copper; corn; ecotoxicology; essential fatty acids; estuaries; fatty acid composition; herbicides; nauplii; nutritive value; pesticide formulations; phytoplankton; trophic levels; zooplankton; Mediterranean region; Portugal;     Show all 21 Subjects
Abstract:
... In Europe, mainly in the Mediterranean region, an intensive usage of pesticides was recorded during the past 30 years. According to information from agricultural cooperatives of the Mondego valley (Figueira da Foz, Portugal), Primextra® Gold TZ is the most used herbicide in corn crop fields and one of the 20 best-selling herbicides in Portugal. Copper is mainly used in pesticide formulations. This ...
DOI:
10.1016/j.aquatox.2016.05.008

460. How benthic diatoms within natural communities respond to eight common herbicides with different modes of action

Author:
Wood, Rebecca J.; Mitrovic, Simon M.; Lim, Richard P.; Kefford, Ben J.
Source:
The Science of the total environment 2016 v.557-558 pp. 636-643
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; 2,4-D; 3-phosphoshikimate 1-carboxyvinyltransferase; Gomphonema; MCPA (herbicide); Navicula; atrazine; benthic organisms; community development; diuron; freshwater; glyphosate; herbicide resistance; hexazinone; mechanism of action; photosystem II; pollutants; rivers; simazine; tebuthiuron; toxicity; toxicity testing;     Show all 22 Subjects
Abstract:
... Herbicides are common pollutants of rivers in agricultural regions. These contaminants include various types of chemicals with different modes of toxic action. Herbicides can have toxic effects on freshwater benthic diatoms, the base of the aquatic food web. We examined the effects of (non-mixture) herbicide exposure to the health of diatoms for eight common herbicides with three different modes o ...
DOI:
10.1016/j.scitotenv.2016.03.142

461. Environmental parasitology: Parasites as accumulation bioindicators in the marine environment

Author:
Nachev, Milen; Sures, Bernd
Source:
Journal of sea research 2016 v.113 pp. 45-50
ISSN:
1385-1101
Subject:
aquatic food webs,   etc   ; Acanthocephala; Cestoda; Nematoda; bioaccumulation; bioavailability; digestive system; environmental factors; environmental impact; freshwater; habitats; hosts; invertebrates; marine ecosystems; marine environment; metals; monitoring; parasites; parasitology; physiology; pollutants; tissues;     Show all 22 Subjects
Abstract:
... Parasites can be used as effective monitoring tools in environmental impact studies as they are able to accumulate certain pollutants (e.g. metals) at levels much higher than those of their ambient environment and of free-living sentinels. Thus, they provide valuable information not only about the chemical conditions of their and their hosts' environment but also deliver insights into the biologic ...
DOI:
10.1016/j.seares.2015.06.005

462. Multiple‐stressor effects on leaf litter decomposition and fungal decomposers in agricultural streams contrast between litter species

Author:
Bruder, Andreas; Salis, Romana K.; McHugh, Nicola J.; Matthaei, Christoph D.
Source:
Functional ecology 2016 v.30 no.7 pp. 1257-1266
ISSN:
0269-8463
Subject:
aquatic food webs,   etc   ; Betula; agricultural land; community structure; dicyandiamide; dissolved oxygen; ecosystems; fungi; land use; microbial communities; nitrification inhibitors; nutrients; physicochemical properties; plant litter; riparian areas; sediments; species diversity; streams; vegetation;     Show all 19 Subjects
Abstract:
... Agricultural land use commonly exerts multiple stressors on the functioning of stream ecosystems, including leaf litter decomposition and the utilization of this resource in stream food webs. If stressors interact, their cumulative effects on biotic responses cannot be predicted from knowledge of individual stressor effects, posing challenges for management and restoration of ecosystems. We examin ...
DOI:
10.1111/1365-2435.12598

463. Simulating ocean acidification and CO2 leakages from carbon capture and storage to assess the effects of pH reduction on cladoceran Moina mongolica Daday and its progeny

Author:
Wang, Zaosheng; Wang, Youshao; Yan, Changzhou
Source:
Chemosphere 2016 v.155 pp. 621-629
ISSN:
0045-6535
Subject:
aquatic food webs,   etc   ; Moina; acidity; carbon dioxide; carbon sequestration; ecological function; fecundity; females; fish; laboratory experimentation; lipids; models; neonates; nutritional status; ocean acidification; oceans; ontogeny; pH; parthenogenesis; progeny; seawater; toxicity testing;     Show all 22 Subjects
Abstract:
... In order to evaluate the effects of pH reduction in seawater as a result of increasing levels of atmospheric CO2, laboratory-scale experiments simulating the scenarios of ocean acidification (OA) and CO2 leakages of carbon capture and storage (CCS) were performed using the model organism Moina mongolica Daday. The LpH50s calculated in cladoceran toxicity tests showed that M. mongolica exhibited in ...
DOI:
10.1016/j.chemosphere.2016.04.086

464. Young of the year bluefish (Pomatomus saltatrix) as a bioindicator of estuarine health: Establishing a new baseline for persistent organic pollutants after Hurricane Sandy for selected estuaries in New Jersey and New York

Author:
Smalling, Kelly L.; Deshpande, Ashok D.; Blazer, Vicki S.; Dockum, Bruce W.; Timmons, DeMond; Sharack, Beth L.; Baker, Ronald J.; Samson, Jennifer; Reilly, Timothy J.
Source:
Marine pollution bulletin 2016 v.107 no.2 pp. 422-431
ISSN:
0025-326X
Subject:
aquatic food webs,   etc   ; Pomatomus saltatrix; ectoparasites; estuaries; fish; habitats; hurricanes; indicator species; lipid content; monitoring; organochlorine pesticides; persistent organic pollutants; piscivores; polybrominated diphenyl ethers; polychlorinated biphenyls; water pollution; New Jersey; New York;     Show all 18 Subjects
Abstract:
... Atlantic coastal bays of the US are essential habitat for young of year bluefish (Pomatomus saltatrix). Their residence in these estuaries during critical life stages, high lipid content, and piscivory make bluefish an ideal bioindicator species for evaluating estuarine health. Individual whole fish from four estuaries impacted by Hurricane Sandy were collected in August 2013, analyzed for a suite ...
DOI:
10.1016/j.marpolbul.2016.03.019

465. The importance of high‐quality algal food sources in stream food webs – current status and future perspectives

Author:
Guo, Fen; Kainz, Martin J.; Sheldon, Fran; Bunn, Stuart E.
Source:
Freshwater biology 2016 v.61 no.6 pp. 815-831
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; algae; alpha-linolenic acid; aquatic invertebrates; carbon; climate change; eicosapentaenoic acid; energy; environmental factors; fish; food quality; freshwater; fungi; humans; interspecific variation; linoleic acid; macroinvertebrates; nutrients; organic matter; reproduction; rivers; streams; temperature; tracer techniques; vegetation;     Show all 25 Subjects
Abstract:
... While many streams and rivers are dominated by terrestrial inputs of organic carbon, algae are an important trophic base for stream food webs. However, the nutritional importance of algae for stream invertebrates only recently has been highlighted. Algae are acknowledged as higher quality food than terrestrial organic matter for the growth and reproduction of invertebrates. In part, this is becaus ...
DOI:
10.1111/fwb.12755

466. Dieback of riparian alder caused by the Phytophthora alni complex: projected consequences for stream ecosystems

Author:
Bjelke, Ulf; Boberg, Johanna; Oliva, Jonàs; Tattersdill, Kristina; McKie, Brendan G.
Source:
Freshwater biology 2016 v.61 no.5 pp. 565-579
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; Alnus; Phytophthora alni; aquatic organisms; branches; climate change; dieback; disease outbreaks; ecosystems; habitats; hybrids; landscapes; nitrogen; nitrogen fixation; pathogens; phenotype; plant litter; riparian areas; roots; streams; summer; temperature; trees; virulence; winter; Europe; North America;     Show all 27 Subjects
Abstract:
... Alder trees (Alnus spp.) are key nitrogen‐fixing riparian species in the northern hemisphere. Inputs of nitrogen‐rich leaf litter from alder into stream food webs can contribute significantly to nitrogen dynamics at local and landscape scales. Alder trees also provide habitats for terrestrial and aquatic organisms, and help stabilize river banks. Recently, substantial declines in alder stands have ...
DOI:
10.1111/fwb.12729

467. Constraints on the biological recovery of the Bohemian Forest lakes from acid stress

Author:
Vrba, Jaroslav; Bojková, Jindřiška; Chvojka, Pavel; Fott, Jan; Kopáček, Jiří; Macek, Miroslav; Nedbalová, Linda; Papáček, Miroslav; Rádková, Vanda; Sacherová, Veronika; Soldán, Tomáš; Šorf, Michal
Source:
Freshwater biology 2016 v.61 no.4 pp. 376-395
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; Ephemeroptera; Heteroptera; Plecoptera; Trichoptera; acid tolerance; acidification; air pollution; aluminum; carbon; eurytopic species; forests; hydrochemistry; insects; lakes; littoral zone; nitrogen; pH; phosphorus; phytoplankton; sulfur; toxicity; zooplankton;     Show all 23 Subjects
Abstract:
... The response of planktonic (phytoplankton, ciliates, rotifers and crustaceans) and littoral (Ephemeroptera, Plecoptera, Trichoptera and Heteroptera: Nepomorpha) assemblages to chemical recovery was studied over a twelve‐year period (1999–2011) in eight glacial lakes in the Bohemian Forest (central Europe). The region suffered from high atmospheric pollution from the 1950s to the late 1980s, but ha ...
DOI:
10.1111/fwb.12714

468. Does temporal variation of mercury levels in Arctic seabirds reflect changes in global environmental contamination, or a modification of Arctic marine food web functioning?

Author:
Fort, Jérôme; Grémillet, David; Traisnel, Gwendoline; Amélineau, Françoise; Bustamante, Paco
Source:
Environmental pollution 2016 v.211 pp. 382-388
ISSN:
0269-7491
Subject:
aquatic food webs,   etc   ; Copepoda; Gammarus; anthropogenic activities; climate change; feathers; food chain; marine ecosystems; mercury; pollutants; pollution; prey species; seabirds; summer; temporal variation; winter; zooplankton; Arctic region; Greenland; Northwest Atlantic;     Show all 20 Subjects
Abstract:
... Studying long-term trends of contaminants in Arctic biota is essential to better understand impacts of anthropogenic activities and climate change on the exposure of sensitive species and marine ecosystems. We concurrently measured temporal changes (2006–2014) in mercury (Hg) contamination of little auks (Alle alle; the most abundant Arctic seabird) and in their major zooplankton prey species (Cal ...
DOI:
10.1016/j.envpol.2015.12.061

469. Distribution and bioconcentration of heavy metals in a tropical aquatic food web: A case study of a tropical estuarine lagoon in SE Mexico

Author:
Mendoza-Carranza, Manuel; Sepúlveda-Lozada, Alejandra; Dias-Ferreira, Celia; Geissen, Violette
Source:
Environmental pollution 2016 v.210 pp. 155-165
ISSN:
0269-7491
Subject:
aquatic food webs,   etc   ; Callinectes; bioaccumulation factor; cadmium; case studies; chromium; coasts; crabs; epiphytes; estuaries; fish; habitats; heavy metals; ichthyoplankton; larvae; lead; marshes; molluscs; nickel; omnivores; petroleum; phytoplankton; planktivores; risk; sediments; urbanization; vanadium; zinc; Mexico;     Show all 29 Subjects
Abstract:
... Despite the increasing impact of heavy metal pollution in southern Mexico due to urban growth and agricultural and petroleum activities, few studies have focused on the behavior and relationships of these pollutants in the biotic and abiotic components of aquatic environments. Here, we studied the bioaccumulation of heavy metals (Cd, Cr, Ni, Pb, V, Zn) in suspended load, sediment, primary producer ...
DOI:
10.1016/j.envpol.2015.12.014

470. Fatty Acid Profiles Distinguish Channel Catfish from Three Reaches of the Lower Kaskaskia River and its Floodplain Lakes

Author:
Young, M. P.; Whitledge, G. W.; Trushenski, J. T.
Source:
River research and applications 2016 v.32 no.3 pp. 362-372
ISSN:
1535-1459
Subject:
aquatic food webs,   etc   ; Ictalurus punctatus; biomarkers; catfish; ecosystems; energy; essential fatty acids; fatty acid composition; floodplains; habitats; liver; muscle tissues; muscles; omega-3 fatty acids; oxbow lakes; rivers; tissue analysis;     Show all 17 Subjects
Abstract:
... Despite the increasing use of fatty acids (FAs) as biomarkers in aquatic food web analysis, little information is available regarding differences in FA profiles of fish among habitat types in river–floodplain ecosystems. The objectives of this study were to (i) test whether the FA profiles of channel catfish (Ictalurus punctatus) differed among three reaches of the lower Kaskaskia River and its fl ...
DOI:
10.1002/rra.2856

471. Pronounced species turnover, but no functional equivalence in leaf consumption of invasive amphipods in the river Rhine

Author:
Jourdan, Jonas; Westerwald, Benjamin; Kiechle, Antonia; Chen, Wei; Streit, Bruno; Klaus, Sebastian; Oetken, Matthias; Plath, Martin
Source:
Biological invasions 2016 v.18 no.3 pp. 763-774
ISSN:
1387-3547
Subject:
aquatic food webs,   etc   ; Alnus glutinosa; Betula pendula; Dikerogammarus villosus; Echinogammarus ischnus; Gammarus fossarum; Quercus robur; detritivores; drainage; ecological invasion; ecosystem services; energy flow; food choices; freshwater ecosystems; leaves; metabolism; plant litter; rivers; species diversity; streams; vegetation;     Show all 21 Subjects
Abstract:
... A growing body of literature focuses on the adverse effects of biological invasions, e.g., on the decline of indigenous biodiversity, while studies on the consequences of invasions on components of ecosystem functioning are comparatively rare. Owing to their leaf shredding activity, amphipods play a fundamental role in determining energy flow dynamics in Central European freshwater ecosystems, but ...
DOI:
10.1007/s10530-015-1046-5

472. Sentinel responses to droughts, wildfires, and floods: effects of UV radiation on lakes and their ecosystem services

Author:
Williamson, Craig E; Overholt, Erin P; Brentrup, Jennifer A; Pilla, Rachel M; Leach, Taylor H; Schladow, S Geoffrey; Warren, Joseph D; Urmy, Samuel S; Sadro, Steven; Chandra, Sudeep; Neale, Patrick J
Source:
Frontiers in ecology and the environment 2016 v.14 no.2 pp. 102-109
ISSN:
1540-9295
Subject:
aquatic food webs,   etc   ; byproducts; carbon; climate change; disinfection; dissolved organic matter; drinking water; drought; ecosystem services; ecosystems; floods; freshwater; lakes; light; parasites; smoke; stormwater; ultraviolet radiation; wildfires; zooplankton; United States;     Show all 21 Subjects
Abstract:
... Environmental drivers such as climate change are responsible for extreme events that are critically altering freshwater resources across the planet. In the continental US, these events range from increases in the frequency and duration of droughts and wildfires in the West, to increasing precipitation and floods that are turning lakes and reservoirs brown in the East. Such events transform and tra ...
DOI:
10.1002/fee.1228

473. Water browning mediates predatory decimation of the Arctic fairy shrimp Branchinecta paludosa

Author:
Lindholm, Markus; Wolf, Raoul; Finstad, Anders; Hessen, Dag O.
Source:
Freshwater biology 2016 v.61 no.3 pp. 340-347
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; Chaoborus; DNA damage; ultraviolet radiation; ponds; predators; vegetation cover; watersheds; extinction; dissolved organic carbon; laboratory experimentation; shrimp; altitude; biodiversity; normalized difference vegetation index; population dynamics; larvae; Norway; Arctic region;     Show all 19 Subjects
Abstract:
... Increased concentration of dissolved organic carbon (DOC) in northern watersheds is a concern. Such browning affects aquatic food webs and biodiversity in multiple ways, not least through increased attenuation of short‐wave UV radiation, which may facilitate establishment of new predators. We examined the effects of browning on occurrence of the predatory larvae of the phantom midge, Chaoborus nyb ...
DOI:
10.1111/fwb.12712

474. Alteration of cytochrome P450 1 regulation and HSP 70 level in brain of juvenile common carp (Cyprinus carpio) after chronic exposure to tributyltin

Author:
Li, Zhi-Hua; Zhong, Li-Qiao; Wu, Yan-Hua; Mu, Wei-Na
Source:
Fish physiology and biochemistry 2016 v.42 no.1 pp. 287-294
ISSN:
0920-1742
Subject:
aquatic food webs,   etc   ; Cyprinus carpio; aquatic environment; biomarkers; brain; chronic exposure; cytochrome P-450; fish; freshwater; gene expression; genes; heat shock proteins; juveniles; long term effects; messenger RNA; monitoring; physiological response; pollution; toxicity; tributyltin;     Show all 20 Subjects
Abstract:
... Tributyltin (TBT), a toxic contaminant in aquatic environments, has bio-accumulated in aquatic food webs throughout the world and can be found at toxic levels in some biota. However, the molecular mechanisms and effects of TBT are not fully understood. The aim of the present study was to investigate the effect of long-term exposure of TBT on cytochrome P450 (CYP450) 1 regulation and heat-shock pro ...
DOI:
10.1007/s10695-015-0136-8

475. Aquatic pollution increases use of terrestrial prey subsidies by stream fish

Author:
Kraus, Johanna M.; Pomeranz, Justin F.; Todd, Andrew S.; Walters, David M.; Schmidt, Travis S.; Wanty, Richard B.; Rohr, Jason
Source:
Journal of applied ecology 2016 v.53 no.1 pp. 44-53
ISSN:
0021-8901
Subject:
aquatic food webs,   etc   ; Salmo trutta; aquatic insects; biomass; diet; energy; fish; fish production; food production; insect communities; metals; nutrients; pollutants; riparian areas; secondary productivity; stomach; streams; subsidies; trace elements; watersheds; Colorado; Rocky Mountain region;     Show all 22 Subjects
Abstract:
... Stream food webs are connected with their riparian zones through cross‐ecosystem movements of energy and nutrients. The use and impact of terrestrial subsidies on aquatic consumers is determined in part by in situ biomass of aquatic prey. Thus, stressors such as aquatic pollutants that greatly reduce aquatic secondary production could increase the need for and reliance of stream consumers on terre ...
DOI:
10.1111/1365-2664.12543

476. Ecological stoichiometry of aquatic fungi: current knowledge and perspectives

Author:
Danger, Michael; Gessner, Mark O.; Bärlocher, Felix
Source:
Fungal ecology 2016 v.19 pp. 100-111
ISSN:
1754-5048
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; aquatic fungi; bacteria; biogeochemical cycles; community structure; energy flow; energy transfer; fungal communities; geographical distribution; homeostasis; hyphae; life history; microbial biomass; plant litter; stoichiometry;     Show all 16 Subjects
Abstract:
... Ecological stoichiometry investigates how the ratios of elements in organisms shape their ecology and nutrient and energy fluxes in ecosystems. Despite their global distribution and essential roles in nutrient cycling, microbial decomposers are among the least known organisms in terms of elemental concentrations and stoichiometric relationships. This review compiles information currently available ...
DOI:
10.1016/j.funeco.2015.09.004

477. Forecasting the Impacts of Silver and Bighead Carp on the Lake Erie Food Web

Author:
Zhang, Hongyan; Rutherford, Edward S.; Mason, Doran M.; Breck, Jason T.; Wittmann, Marion E.; Cooke, Roger M.; Lodge, David M.; Rothlisberger, John D.; Zhu, Xinhua; Johnson, Timothy B.
Source:
Transactions of the American Fisheries Society 2016 v.145 no.1 pp. 136-162
ISSN:
1548-8659
Subject:
aquatic food webs,   etc   ; Hypophthalmichthys nobilis; Perca flavescens; Sander vitreus; biomass; carp; diet; expert opinion; fisheries; invasive species; larvae; models; parameter uncertainty; piscivores; pollution load; predation; zooplankton; Illinois River; Lake Erie;     Show all 19 Subjects
Abstract:
... Nonindigenous bigheaded carps (Bighead Carp Hypophthalmichthys nobilis and Silver Carp H. molitrix ; hereafter, “Asian carps” [AC]) threaten to invade and disrupt food webs and fisheries in the Laurentian Great Lakes through their high consumption of plankton. To quantify the potential effects of AC on the food web in Lake Erie, we developed an Ecopath with Ecosim (EwE) food web model and simulate ...
DOI:
10.1080/00028487.2015.1069211

478. Bioaccumulation and trophic magnification of pharmaceuticals and endocrine disruptors in a Mediterranean river food web

Author:
Ruhí, Albert; Acuña, Vicenç; Barceló, Damià; Huerta, Belinda; Mor, Jordi-Rene; Rodríguez-Mozaz, Sara; Sabater, Sergi
Source:
The Science of the total environment 2016 v.540 pp. 250-259
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; Ancylus fluviatilis; Hydropsyche; anti-inflammatory agents; aquatic organisms; bioaccumulation factor; biofilm; data collection; diclofenac; empirical models; endocrine-disrupting chemicals; exposure pathways; feeding methods; flame retardants; freshwater ecosystems; gemfibrozil; lipids; macroinvertebrates; pollutants; risk; rivers; trophic levels; wastewater treatment;     Show all 23 Subjects
Abstract:
... Increasing evidence exists that emerging pollutants such as pharmaceuticals (PhACs) and endocrine-disrupting compounds (EDCs) can be bioaccumulated by aquatic organisms. However, the relative role of trophic transfers in the acquisition of emerging pollutants by aquatic organisms remains largely unexplored. In freshwater ecosystems, wastewater treatment plants are a major source of PhACs and EDCs. ...
DOI:
10.1016/j.scitotenv.2015.06.009

479. Cephalopod species in the diet of large pelagic fish (sharks and billfishes) in Ecuadorian waters

Author:
Rosas-Luis, R.; Loor-Andrade, P.; Carrera-Fernández, M.; Pincay-Espinoza, J.E.; Vinces-Ortega, C.; Chompoy-Salazar, L.
Source:
Fisheries research 2016 v.173 pp. 159-168
ISSN:
0165-7836
Subject:
aquatic food webs,   etc   ; Dosidicus gigas; Isurus oxyrinchus; Kajikia audax; Makaira nigricans; Octopoda; Prionace glauca; Vampyromorphida; Xiphias gladius; coasts; diet; economic resources; ecosystems; fisheries; pelagic fish; predators; sharks; squid; stomach; Ecuador; Pacific Ocean;     Show all 21 Subjects
Abstract:
... Large pelagic fish species are apex predators in the ecosystem of the Pacific Ocean, and they represent important economic resources for fisheries. In Ecuador there is a fishery for billfish such as Istophorus platypterus, Xiphias gladius, Makaira nigricans, and Kajikia audax, in which sharks such as Prionace glauca and Isurus oxyrinchus are also caught. Their prey includes small fish and cephalop ...
DOI:
10.1016/j.fishres.2015.07.002

480. The impact of the ‘terrestrialisation process’ in the late Palaeozoic: pCO2, pO2, and the ‘phytoplankton blackout’

Author:
Servais, Thomas; Martin, Ronald E.; Nützel, Alexander
Source:
Review of palaeobotany and palynology 2016 v.224 pp. 26-37
ISSN:
0034-6667
Subject:
aquatic food webs,   etc   ; Carboniferous period; Devonian period; Triassic period; benthic organisms; biosphere; carbon cycle; carbon dioxide; corals; evolution; forests; fossils; larvae; marine ecosystems; models; nutrients; oceans; oxygen; photosynthesis; phytoplankton; primary productivity; rooting; runoff; weathering;     Show all 24 Subjects
Abstract:
... With few exceptions, the impact of the evolution of the terrestrial biosphere on the evolution of the marine sphere has been largely ignored. So too has the resulting complementary role of marine photosynthesis and primary productivity in the evolution of atmospheric and oceanic pCO2 and pO2 in response to land–sea interactions. The Early-Middle Palaeozoic invasion of the continents by plants is c ...
DOI:
10.1016/j.revpalbo.2015.08.010

481. Trophic roles determine coral reef fish community size structure1

Author:
Robinson, James P.W.; Baum, Julia K.
Source:
Canadian journal of fisheries and aquatic sciences 2015 v.73 no.4 pp. 496-505
ISSN:
1205-7533
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; body size; carnivores; coral reefs; energy; fish communities; herbivorous fish; nitrogen; predation; stable isotopes; tropical foods;     Show all 12 Subjects
Abstract:
... Relationships between abundance – body size and trophic position – body size can reveal size structuring in food webs and test ecological theory. Although there is considerable evidence of size structuring in temperate aquatic food webs, little is known about the structure of tropical coral reef food webs. Here, we use underwater visual-census data and nitrogen stable isotope analysis to test if c ...
DOI:
10.1139/cjfas-2015-0178

482. Selective transfer of polyunsaturated fatty acids from phytoplankton to planktivorous fish in large boreal lakes

Author:
Strandberg, Ursula; Hiltunen, Minna; Jelkänen, Elli; Taipale, Sami J.; Kainz, Martin J.; Brett, Michael T.; Kankaala, Paula
Source:
The Science of the total environment 2015 v.536 pp. 858-865
ISSN:
0048-9697
Subject:
aquatic food webs,   etc   ; Bacillariophyceae; Copepoda; Coregonus; Mysis; Osmerus eperlanus; alpha-linolenic acid; community structure; eicosapentaenoic acid; fish; fisheries; humans; hydrology; lakes; nutritive value; phytoplankton; planktivores; temperature profiles; zooplankton;     Show all 19 Subjects
Abstract:
... Lake size influences various hydrological parameters, such as water retention time, circulation patterns and thermal stratification that can consequently affect the plankton community composition, benthic–pelagic coupling and the function of aquatic food webs. Although the socio-economical (particularly commercial fisheries) and ecological importance of large lakes has been widely acknowledged, li ...
DOI:
10.1016/j.scitotenv.2015.07.010

483. Assessing aquatic biodiversity of zooplankton communities in an urban landscape

Author:
Mimouni, El-Amine; Pinel-Alloul, Bernadette; Beisner, Beatrix E.
Source:
Urban ecosystems 2015 v.18 no.4 pp. 1353-1372
ISSN:
1083-8155
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; biomass; cities; community structure; habitats; landscapes; littoral zone; macroinvertebrates; predators; species diversity; surface water; urban areas; winter; zooplankton; Canada;     Show all 16 Subjects
Abstract:
... Aquatic ecosystems are common in urban environments. A solid understanding of aquatic species’ distributions in urban habitats will both advance urban ecology and preserve biodiversity in cities. In particular, zooplankton are central components of aquatic food webs and their biodiversity patterns thus warrant further characterization and understanding. We examined sources of variation and biodive ...
DOI:
10.1007/s11252-015-0457-5

484. Development and validation of an in‐house quantitative analysis method for cylindrospermopsin using hydrophilic interaction liquid chromatography–tandem mass spectrometry: Quantification demonstrated in 4 aquatic organisms

Author:
Esterhuizen‐Londt, Maranda; Kühn, Sandra; Pflugmacher, Stephan
Source:
Environmental toxicology and chemistry 2015 v.34 no.12 pp. 2878-2883
ISSN:
0730-7268
Subject:
aquatic food webs,   etc   ; Daphnia magna; Egeria densa; Lumbriculus variegatus; Scenedesmus; aquatic environment; aquatic organisms; bioaccumulation; cylindrospermopsin; detection limit; humans; hydrophilicity; liquid chromatography; quantitative analysis; tandem mass spectrometry; toxicity;     Show all 16 Subjects
Abstract:
... The cyanobacterial toxin cylindrospermopsin (CYN) is of great concern in aquatic environments because of its incidence, multiple toxicity endpoints, and, therefore, the severity of health implications. It may bioaccumulate in aquatic food webs, resulting in high exposure concentrations to higher‐order trophic levels, particularly humans. Because of accumulation at primary levels resulting from exp ...
DOI:
10.1002/etc.3138

485. Interspecific differences in antipredator strategies determine the strength of non‐consumptive predator effects on stream detritivores

Author:
Lagrue, Clément; Besson, Anne A.; Lecerf, Antoine
Source:
Oikos 2015 v.124 no.12 pp. 1589-1596
ISSN:
0030-1299
Subject:
aquatic food webs,   etc   ; community structure; detritivores; ecosystems; field experimentation; habitat preferences; habitats; interspecific variation; invertebrates; larvae; mouthparts; plant litter; predation; predator-prey relationships; predators; risk; streams;     Show all 17 Subjects
Abstract:
... Animal species differ considerably in their response to predation risks. Interspecific variability in prey behaviour and morphology can alter cascading effects of predators on ecosystem structure and functioning. We tested whether species‐specific morphological defenses may affect responses of leaf litter consuming invertebrate prey to sit‐and‐wait predators, the odonate Cordulegaster boltonii lar ...
DOI:
10.1111/oik.02272

486. Sand aggradation alters biofilm standing crop and metabolism in a low-gradient Lake Superior tributary

Author:
Marcarelli, Amy M.; Huckins, Casey J; Eggert, Susan L.
Source:
Journal of Great Lakes research 2015 v.41 pp. 1052-1059
ISSN:
0380-1330
Subject:
aquatic food webs,   etc   ; biofilm; biomass; chlorophyll; metabolism; organic matter; primary productivity; respiratory rate; rivers; sand; sediment deposition; stream channels; summer; watersheds; Lake Superior;     Show all 15 Subjects
Abstract:
... Sediment deposition changes the physical characteristics of river beds, and may alter the production and/or processing of allochthonous and autochthonous organic matter, with potential consequences for stream food webs. We conducted a comparative study of biofilm standing crop and metabolism in the Salmon Trout River, a tributary of Lake Superior where watershed disturbances have led to 3-fold inc ...
DOI:
10.1016/j.jglr.2015.09.004

487. Waterborne toxicity and diet-related effects of fungicides in the key leaf shredder Gammarus fossarum (Crustacea: Amphipoda)

Author:
Zubrod, J.P.; Englert, D.; Wolfram, J.; Wallace, D.; Schnetzer, N.; Baudy, P.; Konschak, M.; Schulz, R.; Bundschuh, M.
Source:
Aquatic toxicology 2015 v.169 pp. 105-112
ISSN:
0166-445X
Subject:
aquatic food webs,   etc   ; Gammarus fossarum; animals; anthropogenic stressors; aquatic ecosystems; diet; feces; fungal communities; fungi; fungicides; leaves; plant litter; species diversity; toxicity;     Show all 14 Subjects
Abstract:
... Animals involved in leaf litter breakdown (i.e., shredders) play a central role in detritus-based stream food webs, while their fitness and functioning can be impaired by anthropogenic stressors. Particularly fungicides can affect shredders via both waterborne exposure and their diet, namely due to co-ingestion of adsorbed fungicides and shifts in the leaf-associated fungal community, on which shr ...
DOI:
10.1016/j.aquatox.2015.10.008

488. Effects of activated carbon ageing in three PCB contaminated sediments: Sorption efficiency and secondary effects on Lumbriculus variegatus

Author:
Nybom, Inna; Waissi-Leinonen, Greta; Mäenpää, Kimmo; Leppänen, Matti T.; Kukkonen, Jussi V.K.; Werner, David; Akkanen, Jarkko
Source:
Water research 2015 v.85 pp. 413-421
ISSN:
0043-1354
Subject:
aquatic food webs,   etc   ; Lumbriculus variegatus; activated carbon; benthic organisms; bioaccumulation; bioavailability; biomass; digestive system; microvilli; polychlorinated biphenyls; samplers; sediment contamination; sediments; sorption; transmission electron microscopy;     Show all 15 Subjects
Abstract:
... The sorption efficiency and possible secondary effects of activated carbon (AC) (ø 63–200 μm) was studied with Lumbriculus variegatus in three PCB contaminated sediments applying long AC-sediment contact time (3 years). AC amendment efficiently reduced PCB bioavailability as determined with both, L. variegatus bioaccumulation test and passive samplers. However, dose related secondary effects of AC ...
DOI:
10.1016/j.watres.2015.08.044

489. PCB Food Web Dynamics Quantify Nutrient and Energy Flow in Aquatic Ecosystems

Author:
McLeod, Anne M.; Paterson, Gordon; Drouillard, Ken G.; Haffner, G. Douglas
Source:
Environmental Science & Technology 2015 v.49 no.21 pp. 12832-12839
ISSN:
1520-5851
Subject:
aquatic food webs,   etc   ; Salvelinus namaycush; aquatic ecosystems; bioaccumulation; biogeochemical cycles; energy flow; fish; lakes; life history; nitrogen; nutrients; phosphorus; polychlorinated biphenyls; recycling; trophic levels; Lake Huron;     Show all 16 Subjects
Abstract:
... Measuring in situ nutrient and energy flows in spatially and temporally complex aquatic ecosystems represents a major ecological challenge. Food web structure, energy and nutrient budgets are difficult to measure, and it is becoming more important to quantify both energy and nutrient flow to determine how food web processes and structure are being modified by multiple stressors. We propose that po ...
DOI:
10.1021/acs.est.5b03978

490. Phagotrophic protists are a key component of microbial communities processing leaf litter under contrasting oxic conditions

Author:
Risse‐Buhl, Ute; Schlief, Jeanette; Mutz, Michael
Source:
Freshwater biology 2015 v.60 no.11 pp. 2310-2322
ISSN:
0046-5070
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; aquatic fungi; bacteria; bacterial communities; biochemical pathways; biomass; carbon; community structure; ergosterol; fermentation; leaves; macroinvertebrates; normoxia; oxygen; plant litter; shredding; streams;     Show all 18 Subjects
Abstract:
... The transformation of leaf litter, a key process in aquatic systems, is known to be reduced with decreasing oxygen concentrations, mainly due to lower abundance of and/or less active shredding macroinvertebrates. Aquatic fungi and phagotrophic protists involved in leaf litter processing can tolerate low oxygen, but little is known about their role in leaf litter processing under these conditions. ...
DOI:
10.1111/fwb.12657

491. Mercury and selenium accumulation in the Colorado River food web, Grand Canyon, USA

Author:
Walters, David M.; Rosi‐Marshall, Emma; Kennedy, Theodore A.; Cross, Wyatt F.; Baxter, Colden V.
Source:
Environmental toxicology and chemistry 2015 v.34 no.10 pp. 2385-2394
ISSN:
0730-7268
Subject:
aquatic food webs,   etc   ; bioaccumulation; ecosystems; fish; freshwater; humans; invertebrates; mercury; organic matter; risk; rivers; selenium; toxicity; wildlife; Colorado River; United States;     Show all 16 Subjects
Abstract:
... Mercury (Hg) and selenium (Se) biomagnify in aquatic food webs and are toxic to fish and wildlife. The authors measured Hg and Se in organic matter, invertebrates, and fishes in the Colorado River food web at sites spanning 387 river km downstream of Glen Canyon Dam (AZ, USA). Concentrations were relatively high among sites compared with other large rivers (mean wet wt for 6 fishes was 0.17–1.59 μ ...
DOI:
10.1002/etc.3077

492. Recovery study of cholinesterases and neurotoxic signs in the non-target freshwater invertebrate Chilina gibbosa after an acute exposure to an environmental concentration of azinphos-methyl

Author:
Cossi, Paula Fanny; Beverly, Boburg; Carlos, Luquet; Kristoff, Gisela
Source:
Aquatic toxicology 2015 v.167 pp. 248-256
ISSN:
0166-445X
Subject:
aquatic food webs,   etc   ; Gastropoda; acute exposure; azinphos-methyl; biomarkers; carboxylesterase; cholinesterase; enzyme activity; freshwater; indicator species; neurotoxicity; population dynamics; snails; Argentina; Chile;     Show all 15 Subjects
Abstract:
... Azinphos-methyl belongs to the class of organophosphate insecticides which are recognized for their anticholinesterase action. It is one of the most frequently used insecticides in the Upper Valley of Río Negro and Río Neuquén in Argentina, where agriculture represents the second most important economic activity. It has been detected in water from this North Patagonian region throughout the year a ...
DOI:
10.1016/j.aquatox.2015.08.014

493. Expanded trophic complexity among large sharks

Author:
Hussey, Nigel E.; MacNeil, M. Aaron; Siple, Margaret C.; Popp, Brian N.; Dudley, Sheldon F.J.; Fisk, Aaron T.
Source:
Food webs 2015 v.4 pp. 1-7
ISSN:
2352-2496
Subject:
aquatic food webs,   etc   ; Bayesian theory; amino acids; body size; carbon; diet; feeding behavior; marine ecosystems; models; nitrogen; predators; sharks; stable isotopes; threatened species; trophic levels; Southern Africa;     Show all 16 Subjects
Abstract:
... To understand the effects of predator removal in marine ecosystems requires accurate estimates of trophic position and trophic structure that have been difficult to obtain to date. For example, most sharks are classified as diet generalists that feed around trophic position 4, but this classification contradicts observations of diverse feeding behaviour among large species, suggesting that trophic ...
DOI:
10.1016/j.fooweb.2015.04.002

494. Review of arsenic speciation, toxicity and metabolism in microalgae

Author:
Wang, Ya; Wang, Shu; Xu, Pingping; Liu, Cong; Liu, Misha; Wang, Yulan; Wang, Changhai; Zhang, Chunhua; Ge, Ying
Source:
Re/views in environmental science and bio/technology 2015 v.14 no.3 pp. 427-451
ISSN:
1569-1705
Subject:
aquatic food webs,   etc   ; enzymes; arsenites; genes; phosphorus; risk; glutathione; methylation; pollution; oxidation; metabolism; arsenic; arsenates; phytochelatins; biotransformation; toxicity; excretion; nitrogen; absorption; biochemical pathways; chemical speciation; microalgae; chelation;     Show all 23 Subjects
Abstract:
... Arsenic is a toxic metalloid and its pollution has become a global environmental problem. This paper reviewed the current knowledge on the speciation, toxicity and metabolism of arsenic in microalgae. A number of arsenic species are present in various microalgae. Due to the great toxicity of inorganic arsenic, microalgae may undergo different processes to reduce the arsenic toxicity, including cel ...
DOI:
10.1007/s11157-015-9371-9

495. Evaluation of the potential for trophic transfer of roxithromycin along an experimental food chain

Author:
Ding, Jiannan; Lu, Guanghua; Liu, Jianchao; Zhang, Zhenghua
Source:
Environmental science and pollution research international 2015 v.22 no.14 pp. 10592-10600
ISSN:
0944-1344
Subject:
aquatic food webs,   etc   ; Carassius auratus; Daphnia magna; Scenedesmus obliquus; bile; bioaccumulation factor; carp; drugs; food chain; liver; muscles; pollutants; risk assessment; roxithromycin; tissues;     Show all 15 Subjects
Abstract:
... Pharmaceuticals have been recognized as a new class of environmental pollutants in recent years. But data about their potential for transfer and biomagnification in aquatic food chains are still lacking. In this study, bioaccumulation of the macrolide antibiotic roxithromycin (ROX) was determined in an experimental aquatic food chain involving the green algae Scenedesmus obliquus, the water flea D ...
DOI:
10.1007/s11356-015-4265-5

496. Geomorphology controls the trophic base of stream food webs in a boreal watershed

Author:
Smits, Adrianne P.; Schindler, Daniel E.; Brett, Michael T.
Source:
Ecology 2015 v.96 no.7 pp. 1775-1782
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; Ephemeroptera; Trichoptera; algae; biomass; energy; fatty acids; geomorphology; invertebrates; landscapes; methanotrophs; organic matter; rivers; streams; sulfate-reducing bacteria; watersheds; Alaska;     Show all 17 Subjects
Abstract:
... Physical attributes of rivers control the quantity and quality of energy sources available to consumers, but it remains untested whether geomorphic conditions of whole watersheds affect the assimilation of different resources by stream organisms. We compared the fatty acid (FA) compositions of two invertebrate taxa (caddisflies, mayflies) collected from 16 streams in southwest Alaska, USA, to asse ...
DOI:
10.1890/14-2247.1

497. The fossil record and palaeoenvironmental significance of marine arthropod zooplankton

Author:
Perrier, Vincent; Williams, Mark; Siveter, David J.
Source:
Earth-science reviews 2015 v.146 pp. 146-162
ISSN:
0012-8252
Subject:
aquatic food webs,   etc   ; Cambrian period; appendages; arthropods; exoskeleton; extinction; food chain; fossils; lifestyle; marine ecosystems; metabolism; organic matter; paleoecology; predators; streams; swimming; zooplankton;     Show all 17 Subjects
Abstract:
... Arthropods are a major component of the marine zooplankton, functioning as intermediates between primary producers and tertiary consumers in pelagic food webs. They have likely occupied the water column ecospace since the early Cambrian, co-evolving with several major plankton groups through the Phanerozoic. Analysis of the fossil record of arthropods indicates that a zooplanktonic lifestyle has a ...
DOI:
10.1016/j.earscirev.2015.02.003

498. Variation in whole-, landed- and trimmed-carcass and fin-weight ratios for various sharks captured on demersal set-lines off eastern Australia

Author:
Pleizier, Naomi; Gutowsky, Lee F.G.; Peddemors, Victor M.; Cooke, Steven J.; Butcher, Paul A.
Source:
Fisheries research 2015 v.167 pp. 190-198
ISSN:
0165-7836
Subject:
aquatic food webs,   etc   ; adverse effects; body length; body weight; decision making; fins; fisheries; managers; markets; models; national planning; predators; sharks; New South Wales;     Show all 14 Subjects
Abstract:
... Sharks are important apex predators in marine systems but many populations have experienced large declines, which has resulted in adverse effects on marine food webs. Sharks are also economically important, as their fins are valued in Asian markets. In response to concerns about declining shark populations, a number of nations, including Australia, have developed national plans of action for their ...
DOI:
10.1016/j.fishres.2015.02.008

499. An environmental problem hidden in plain sight? Small Human‐made ponds, emergent insects, and mercury contamination of biota in the Great Plains

Author:
Chumchal, Matthew M.; Drenner, Ray W.
Source:
Environmental toxicology and chemistry 2015 v.34 no.6 pp. 1197-1205
ISSN:
0730-7268
Subject:
aquatic food webs,   etc   ; aquatic ecosystems; aquatic insects; climate change; food contamination; humans; mercury; methylmercury compounds; models; ponds; toxicity; watersheds; Great Plains region; United States;     Show all 14 Subjects
Abstract:
... Mercury (Hg) contamination of small human‐made ponds and surrounding terrestrial communities may be 1 of the largest unstudied Hg‐pollution problems in the United States. Humans have built millions of small ponds in the Great Plains of the United States, and these ponds have become contaminated with atmospherically deposited mercury. In aquatic ecosystems, less toxic forms of Hg deposited from the ...
DOI:
10.1002/etc.2954

500. A test of the subsidy–stability hypothesis: the effects of terrestrial carbon in aquatic ecosystems

Author:
Jones, Stuart E.; Lennon, Jay T.
Source:
Ecology 2015 v.96 no.6 pp. 1550-1560
ISSN:
0012-9658
Subject:
aquatic food webs,   etc   ; linear models; energy; primary productivity; humic substances; ecosystem services; landscapes; ponds; global change; growing season; shade; dissolved organic carbon; habitats; aquatic ecosystems; prediction;     Show all 15 Subjects
Abstract:
... Global change is altering the movement of materials across landscapes in ways that likely have major consequences for the functioning and stability of ecosystems. For example, the export of dissolved organic carbon (DOC) from terrestrial to aquatic ecosystems is increasing globally. This browning phenomenon is expected to alter the stability of recipient aquatic ecosystems, but theory provides con ...
DOI:
10.1890/14-1783.1