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You searched for: Journal name Aquatic ecology Remove constraint Journal name: Aquatic ecology Publication year rev 7991-2009 Remove constraint Publication year rev: 7991-2009 Source 2009 v.43 no.2 Remove constraint Source: 2009 v.43 no.2
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1. Benthic community response to a passive fishing gear in a coastal lagoon (South Brazil)

Author:
Netto, Sérgio A.; Pereira, Tiago J.
Source:
Aquatic ecology 2009 v.43 no.2 pp. 521-538
ISSN:
1386-2588
Subject:
Nematoda; aquacultural and fisheries equipment; biomass; chlorophyll; fisheries; gears; hills; issues and policy; sand; shrimp; Brazil
Abstract:
... The influence of a passive shrimp fishing gear on benthic communities was studied at Laguna Estuarine System (South Brazil), a shallow choked coastal lagoon. The gear is composed by a group of fyke nets (25 mm mesh size) set in contact to the bottom, fixed with stakes forming a cage-like structure (around 30 m²). Samplings were conducted in the two main fishery areas of the estuarine system, Mirim ...
DOI:
10.1007/s10452-008-9177-8

2. Carbon and nitrogen partitioning in the freshwater submerged macrophyte Vallisneria gigantea in response to ultraviolet-B irradiance

Author:
Kasige, Anusha; Takashi, Asaeda
Source:
Aquatic ecology 2009 v.43 no.2 pp. 313-322
ISSN:
1386-2588
Subject:
Vallisneria gigantea; aboveground biomass; aerial parts; analysis of variance; carbohydrates; carbon; chlorophyll; freshwater; irradiation; leaves; lignin; nitrogen; nitrogen content; ultraviolet radiation
Abstract:
... The aim of this study was to determine the effect of ultraviolet-B (UV-B) exposures (0.55 and 1.1 W m⁻²) on the distributional variations of plant carbon and nitrogen content in both below- and aboveground parts in Vallisneria gigantea Graebner in laboratory conditions for a 3-month period. Plant biomass, total organic nitrogen, total organic carbon, lignin, water soluble carbohydrates and chlorop ...
DOI:
10.1007/s10452-008-9201-z

3. Effects of three phthalate esters on the life-table demography of freshwater rotifer Brachionus calyciflorus Pallas

Author:
Zhao, Lan-Lan; Xi, Yi-Long; Huang, Lin; Zha, Chun-Wang
Source:
Aquatic ecology 2009 v.43 no.2 pp. 395-402
ISSN:
1386-2588
Subject:
freshwater; polymers; rivers; longevity; humans; lakes; plasticizers; industry; volatilization; toxic substances; Brachionus calyciflorus; air; esters; hatching; demography; population growth; solvents; United States
Abstract:
... Phthalate esters (PAEs) are mainly used in the polymer industry as external plasticizers in PVC, and tend to migrate slowly out of the plastic, either into the air by volatilization or into water or other solvents by dissolution. Di-n-butyl phthalate (DBP), butyl benzyl phthalate (BBP) and di-2-ethylhexyl phthalate (DEHP) are three members of PAEs, identified as priority controlled hazardous subst ...
DOI:
10.1007/s10452-008-9179-6

4. In-stream behaviour of threatened fishes and their food organisms based on remote video monitoring

Author:
Ebner, Brendan; Clear, Rhian; Godschalx, Simon; Beitzel, Matthew
Source:
Aquatic ecology 2009 v.43 no.2 pp. 569-576
ISSN:
1386-2588
Subject:
Decapoda; Gadopsis; Macquaria australasica; diel activity; fauna; freshwater; freshwater fish; highlands; monitoring; shrimp; streams
Abstract:
... Can remote underwater video be used to investigate the in-stream behaviour of small fishes and decapods? Diel activity of two threatened freshwater fishes (Macquaria australasica and Gadopsis bispinosus), a palaemonid prawn and an atyid shrimp, was established from remote underwater video in a pool of an upland stream in the current study. Decapods and large fishes (>5 cm TL) were nocturnal, where ...
DOI:
10.1007/s10452-008-9192-9

5. Microbial identification of the Nichupte-Bojorquez coastal lagoon in Cancun, Mexico

Author:
León-Galván, Ma. Fabiola; Carbajal, Noel; Frickey, Tancred; Santos, Leticia
Source:
Aquatic ecology 2009 v.43 no.2 pp. 197-205
ISSN:
1386-2588
Subject:
Cyanobacteria; Proteobacteria; bacteria; bacterial communities; cluster analysis; genes; hurricanes; ribosomal DNA; ribosomal RNA; sequence analysis; Mexico
Abstract:
... The microbial community of the Nichupte-Bojorquez lagoon system located in Cancun, Mexico was evaluated using surface-water samples that were collected before and after the hurricane Wilma impacted the area on October 2005. The analysis was done using a culture-independent molecular approach involving Amplified Ribosomal DNA Restriction Analysis, and CLuster ANalysis of Sequences. A total of 61 16 ...
DOI:
10.1007/s10452-008-9171-1

6. Phototactic response and light sensitivity in an epigean and a hypogean population of a barb (Garra barreimiae, Cyprinidae)

Author:
Timmermann, Mirna; Plath, Martin
Source:
Aquatic ecology 2009 v.43 no.2 pp. 539-547
ISSN:
1386-2588
Subject:
Cyprinidae; adults; caves; euphotic zone; fish; juveniles; light intensity; phototaxis; play activities
Abstract:
... We investigated the response of two populations of the barb Garra barreimiae to different light intensities (0.5-2000 lx) from a light source. Adults of both the surface (epigean) and cave (hypogean) G. barreimiae populations show photophobic behavior. A photophobic response in the cave form was seen only at higher light intensities because the cavefish are eyeless and rely on extra-retinal light ...
DOI:
10.1007/s10452-008-9173-z

7. Relationship between prevalence of trematode parasite Diplostomum sp. and population density of its snail host Lymnaea stagnalis in lakes and ponds in Finland

Author:
Voutilainen, Ari; van Ooik, Tapio; Puurtinen, Mikael; Kortet, Raine; Taskinen, Jouni
Source:
Aquatic ecology 2009 v.43 no.2 pp. 351-357
ISSN:
1386-2588
Subject:
Diplostomum; Lymnaea stagnalis; birds; fish; intermediate hosts; lakes; parasites; ponds; population density; snails; Finland
Abstract:
... Diplostomum sp. is a trematode parasite that infects aquatic snails, e.g. Lymnaea stagnalis (Gastropoda: Lymnaeidae), fish, and fish-eating birds. Ponds and lakes (n = 28) located in Finland between latitudes 61°45'N and 65°30'N were sampled for L. stagnalis, the first intermediate host for Diplostomum sp. L. stagnalis were found in 22 sites out of 28, and Diplostomum sp. in 10 of the 22 snail pop ...
DOI:
10.1007/s10452-008-9203-x

8. Seasonal variations of microphytoplankton assemblages and environmental variables in the coastal zone of Bozcaada Island in the Aegean Sea (NE Mediterranean Sea)

Author:
Balkis, Neslihan
Source:
Aquatic ecology 2009 v.43 no.2 pp. 249-270
ISSN:
1386-2588
Subject:
Bacillariophyta; Dinophyceae; chlorophyll; coasts; environmental factors; islands; nitrates; nitrites; nitrogen; nutrient content; phosphates; phosphorus; phytoplankton; seasonal variation; silicates; species diversity; Aegean Sea; Mediterranean Sea
Abstract:
... Seasonal changes in the microphytoplankton assemblages were examined in the coastal zone of Bozcaada Island with regard to some major physical and chemical variables. Samples were collected from May 2000 to December 2001 at four stations. A total of 108 dinoflagellates, 102 diatoms, 1 chrysophycean, 3 dictyochophycean, and 1 prasinophycean species were identified and quantified during the study pe ...
DOI:
10.1007/s10452-008-9175-x

9. Siphonophores off a riverine system in the southern Gulf of Mexico: factors affecting their distribution and spatial niche breadth and overlap

Author:
Sanvicente-Añorve, Laura; Alba, Claudia; Flores-Coto, César; Castillo-Rivera, Manuel
Source:
Aquatic ecology 2009 v.43 no.2 pp. 423-435
ISSN:
1386-2588
Subject:
Schefflera; Tetragona; biomass; coastal water; diet; environmental factors; food availability; niches; regression analysis; salinity; temperature; Gulf of Mexico
Abstract:
... Environmental factors determining the spatial pattern of the whole siphonophore community, as well as the hydrological occurrence ranges, small-scale vertical distribution, and spatial niche breadth and overlap of 23 siphonophore species collected off a riverine system in the southern Gulf of Mexico were analysed. A total of 149 zooplankton samples were collected in different strata of the water c ...
DOI:
10.1007/s10452-008-9172-0

10. A quantitative hydrogeomorphic approach to the classification of temporary wetlands in the Doñana National Park (SW Spain)

Author:
Espinar, José L.; Serrano, Laura
Source:
Aquatic ecology 2009 v.43 no.2 pp. 323-334
ISSN:
1386-2588
Subject:
alkalinity; biomass; chlorophyll; floods; marshes; national parks; nitrates; pH; phosphates; ponds; sand; surveys; variance; Spain
Abstract:
... A quantitative hydrogeomorphic approach was applied to an extensive survey of temporary wetlands in the Doñana National Park (SW Spain) in search for quantitative thresholds for wetland classification. Twenty freshwater ponds on the aeolian sand mantle and 46 sites on silty-clay substrate, located in the southern marshland, were surveyed during the heaviest rainy period so far recorded (October 19 ...
DOI:
10.1007/s10452-007-9162-7

11. Aboveground decomposition dynamics in riparian depression and slope wetlands of central Pennsylvania

Author:
Hough, Zaneta; Cole, Charles Andrew
Source:
Aquatic ecology 2009 v.43 no.2 pp. 335-349
ISSN:
1386-2588
Subject:
Phalaris arundinacea; bioassays; cation exchange capacity; classification; discriminant analysis; nitrogen; regression analysis; soil organic matter; soil pH; wetlands; Pennsylvania
Abstract:
... We examined two types of groundwater-fed wetlands (riparian depressions and slopes) classified using the hydrogeomorphic (HGM) system. These wetland types had previously been shown to differ hydrologically. Our first objective was to determine if HGM was a useful structuring variable when examining aboveground decomposition dynamics (rate of mass loss and rate of nitrogen loss). Our second objecti ...
DOI:
10.1007/s10452-008-9198-3

12. Asymmetrical food web responses in trophic-level richness, biomass, and function following lake acidification

Author:
Hogsden, Kristy L.; Xenopoulos, Marguerite A.; Rusak, James A.
Source:
Aquatic ecology 2009 v.43 no.2 pp. 591-606
ISSN:
1386-2588
Subject:
acidification; basins; biomass production; ecosystems; fish; food webs; lakes; pH; phytoplankton; seasonal variation; species diversity; stress response; zooplankton; Wisconsin
Abstract:
... We tested for disproportional changes in annual and seasonal species richness and biomass among five trophic levels (phytoplankton, herbivorous, omnivorous, and carnivorous zooplankton, and fish) as well as altered trophic structure and ecosystem function following the 5-year experimental acidification of Little Rock Lake (Wisconsin, USA) from pH 6.1 to 4.7. Abiotic and biotic controls of trophic ...
DOI:
10.1007/s10452-008-9169-8

13. Autecology and morphology of selected Vaucheria species (Xanthophyceae)

Author:
Schagerl, Michael; Kerschbaumer, Maria
Source:
Aquatic ecology 2009 v.43 no.2 pp. 295-303
ISSN:
1386-2588
Subject:
Vaucheria; alkalinity; buffering capacity; cold season; discriminant analysis; indicator species; ions; pH; population ecology; principal component analysis; summer; variance
Abstract:
... In this study, the yellow-green alga Vaucheria was collected from 86 sites with different environmental characteristics. A principal component analysis of the sites revealed a model with four principal components explaining 64.7% of the total variance in the data set. The principal components were interpreted as nutrient enrichment, ions, current, and buffer capacity. In total, seven Vaucheria spe ...
DOI:
10.1007/s10452-007-9163-6

14. Can export of organic matter from estuaries support zooplankton in nearshore, marine plumes?

Author:
Schlacher, Thomas A.; Connolly, Rod M.; Skillington, Anna J.; Gaston, Troy F.
Source:
Aquatic ecology 2009 v.43 no.2 pp. 383-393
ISSN:
1386-2588
Subject:
base flow; bioactive properties; biomass; carbon; coastal water; energy flow; estuaries; food webs; freshwater; isotope labeling; nitrogen; nutrients; organic matter; phytoplankton; rivers; subsidies; terrestrial ecosystems; turbidity; zooplankton; Australia
Abstract:
... Marine and terrestrial ecosystems are connected via transfers of nutrients and organic matter in river discharges. In coastal seas, such freshwater outflows create prominent turbidity plumes. These plumes are areas of high biological activity in the pelagos, of which zooplankton is a key element. Conceptually, the increased biomass of zooplankton consumers in plumes can be supported by two alterna ...
DOI:
10.1007/s10452-008-9196-5

15. Detecting river environmental quality through plant and macroinvertebrate bioindicators in the Aniene River (Central Italy)

Author:
Testi, Anna; Bisceglie, Sara; Guidotti, Silvia; Fanelli, Giuliano
Source:
Aquatic ecology 2009 v.43 no.2 pp. 477-486
ISSN:
1386-2588
Subject:
data collection; environmental quality; geographic information systems; habitat destruction; indicator species; macroinvertebrates; rivers; vegetation; water pollution; Italy
Abstract:
... From the source to the mouth of the Aniene River, a tributary of the Tiber near Rome, there is a multifactorial gradient of increasing disturbance and water pollution. We first investigated the variation of riverine and aquatic vegetation along the Aniene, analysing the floristic composition by means of transects comprising both water and shore. We then compared vascular plants and macroinvertebra ...
DOI:
10.1007/s10452-008-9205-8

16. Diel variation of phytoplankton functional groups in a subtropical reservoir in southern Brazil during an autumnal stratification period

Author:
Becker, Vanessa; de Souza Cardoso, Luciana; Huszar, Vera Lúcia M.
Source:
Aquatic ecology 2009 v.43 no.2 pp. 285-293
ISSN:
1386-2588
Subject:
autumn; biomass; grazing intensity; lakes; mixing; phytoplankton; zooplankton; Brazil
Abstract:
... A knowledge of diel variation and the vertical distribution of phytoplankton communities may contribute to a better understanding of the driving factors of key species. Applying functional-group classification provides important information on the causes of species selection in the pelagic community. The diel variation of phytoplankton functional groups was analysed during an autumnal stratificati ...
DOI:
10.1007/s10452-008-9164-0

17. Diet and prey selection in larval and juvenile Japanese anchovy Engraulis japonicus in Ariake Bay, Japan

Author:
Islam, Md. Shahidul; Tanaka, Masaru
Source:
Aquatic ecology 2009 v.43 no.2 pp. 549-558
ISSN:
1386-2588
Subject:
Acartia; Engraulis japonicus; anchovies; correlation; diet study techniques; digestive tract; juveniles; larvae; postlarvae; salinity; temperature; Japan
Abstract:
... We studied the diet of larval and juvenile Japanese anchovy Engraulis japonicus in the upper Ariake Bay, Japan. Diet was analyzed by examining the digestive tracts; feeding intensity, proportion of empty guts, and prey selectivity were calculated. Anchovy density was negatively influenced by temperature and positively by salinity and prey density. Diet was dominated by Acartia omorii, which was po ...
DOI:
10.1007/s10452-008-9207-6

18. Distribution and abundance of meiofauna in intertidal sand substrata around Iceland

Author:
Delgado, Juan D.; Riera, Rodrigo; Monterroso, Óscar; Núñez, Jorge
Source:
Aquatic ecology 2009 v.43 no.2 pp. 221-233
ISSN:
1386-2588
Subject:
Acari; organic matter; sand; fisheries; Bivalvia; Copepoda; Gastropoda; Isopoda; beaches; coasts; Nematoda; ecosystems; Platyhelminthes; gravel; community structure; Polychaeta; Cnidaria; glaciers; environmental factors; Ascidiacea; Iceland
Abstract:
... Iceland is situated in an important subarctic transition area where complex oceanographic dynamics occur. The intertidal, subtidal, and deep-sea faunal communities of Iceland are being intensively studied, as a critical resource for continued sustainability of fisheries and the preservation of northern littoral ecosystems. However, the meiofaunal communities and the environmental factors affecting ...
DOI:
10.1007/s10452-008-9200-0

19. Do intermittent and ephemeral Mediterranean rivers belong to the same river type?

Author:
Anna, Argyroudi; Yorgos, Chatzinikolaou; Konstantinos, Poirazidis; Maria, Lazaridou
Source:
Aquatic ecology 2009 v.43 no.2 pp. 465-476
ISSN:
1386-2588
Subject:
ecology; humans; hydrology; multivariate analysis; national parks; rivers; seasonal variation; Greece
Abstract:
... The benthic macroinvertebrate communities and ecological quality of eleven temporary rivers (seven intermittent and four ephemeral) in Dadia National Park, north-eastern Greece, were examined with respect to the degree of flow temporality. Sampling took place during the high flow season at both ephemeral and intermittent sites and during the low flow season only at the intermittent ones, which rec ...
DOI:
10.1007/s10452-008-9176-9

20. Effect of light regimes on the utilisation of an exogenous carbon source by freshwater biofilm bacterial communities

Author:
Lear, Gavin; Turner, Susan J.; Lewis, Gillian D.
Source:
Aquatic ecology 2009 v.43 no.2 pp. 207-220
ISSN:
1386-2588
Subject:
acetates; autotrophs; bacteria; bacterial communities; biofilm; carbon; chlorophyll; community structure; freshwater; genes; isotope labeling; light intensity; ribosomal RNA; stable isotopes; vegetation
Abstract:
... This study reports the novel use of nucleic acid stable isotope probing (NA-SIP) to identify metabolically active ([¹³C]-acetate assimilating) bacteria in freshwater biofilms. Currently, a little is known of the factors affecting the structure and activity of these complex microbial biofilm communities, although it is likely that they are influenced by riparian vegetation through attenuation of li ...
DOI:
10.1007/s10452-008-9193-8