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... Following a decade of research on the environmental impacts of microplastics, a knowledge gap remains on the processes by which micro and nanoplastics pass across biological barriers, enter cells and are subject to biological mechanisms. Here we summarize available literature on the accumulation of microplastics and their associated contaminants in a variety of organisms including humans. Most dat ...
... Receiving waters from agricultural areas can contain multiple pesticides such as the neonicotinoid imidacloprid and the fungicide tebuconazole, leading to the potential for aquatic life to be exposed to such mixtures. In the present study, the effects of tebuconazole were tested alone and in binary mixtures with imidacloprid on 4 aquatic invertebrates: Chironomus dilutus, Hyalella azteca, Lumbricu ...
... The relatively low availability of toxicity data for indigenous tropical species has often been discussed. In addition, several taxonomic groups of invertebrates are understudied, such as dragonflies and ostracods. The aim of the present study was therefore to evaluate the acute toxicity of four metals (cadmium - Cd, copper - Cu, manganese - Mn, and mercury - Hg) to the tropical dragonfly nymphs o ...
... To find the adverse effects induced by cypermethrin, the ecotoxicological model copepods Tigriopus japonicus and Paracyclopina nana were exposed under cypermethrin, which is a widely used type-II pyrethroid insecticide in agriculture. Despite its large-scale application as insecticide in agriculture, little information is available on its adverse effects on aquatic invertebrates. In this study, th ...
... Hypoxia in aquatic ecosystems is often a result of anthropogenic activities, such as increased nutrient loading, originating from agriculture or urbanization, as well as global warming. Aquatic invertebrates are especially important in ecosystems due to their central role in secondary production and in dynamics of food webs. To better understand impacts of oxygen availability on key physiological ...
... Dispersal and colonization processes are complex and affected by several factors in the marine realm. Understanding how and where individuals go can be challenging, particularly for marine invertebrates that do not have a sessile phase. We selected the amphipod-macroalga system to investigate if life stage and life style can influence colonization patterns from algal patches placed at different di ...
Oligochaeta; aquatic invertebrates; community structure; ecosystems; land use; macroinvertebrates; municipal wastewater; nutrients; pesticides; pollutants; saprophytes; streams; wastewater treatment; water pollution; water quality; Switzerland
Abstract:
... Water pollution is ubiquitous globally, yet how the effects of pollutants propagate through natural ecosystems remains poorly understood. This is because the interactive effects of multiple stressors are generally hard to predict. Agriculture and municipal wastewater treatment plants (WWTPs) are often major sources of contaminants for streams, but their relative importance and the role of differen ...
... Acute and chronic toxicity of the formamidine pesticide amitraz to the midge Chironomus riparius was assessed using conventional ecotoxicological tests and biochemical approaches (biomarkers). Amitraz is mainly used as an ectoparasiticide in veterinary medicine, but also in agriculture and apiculture. However, information of amitraz toxicity to non-target invertebrates is limited. Besides the impa ...
... Epiphytes represent up to 50% of all plant species in rainforests, where they host a substantial amount of invertebrate biomass. Efficient surrogates for epiphyte invertebrate communities could reduce the cost of biomonitoring surveys while preventing destructive sampling of the plants. Here, we focus on the invertebrate communities associated to tank bromeliads. We ask whether the presence of par ...
Chrystal Mantyka‐Pringle; Lionel Leston; Dave Messmer; Elvis Asong; Erin M. Bayne; Lauren E. Bortolotti; Gregory Sekulic; Howard Wheater; David W. Howerter; Robert G. Clark
Chironomidae; Odonata; aquatic invertebrates; birds; climate; climate change; cropland; dissolved organic carbon; ecosystems; grasslands; hydrochemistry; insectivores; land use; macroinvertebrates; phosphorus; rain; riparian vegetation; salinity; shrublands; species richness; temperature; total phosphorus; water quality; wetlands; Alberta
Abstract:
... AIM: Wetland loss and degradation threaten biodiversity to an extent greater than most ecosystems. Science‐supported responses require understanding of interacting effects of land use and climate change on wetland biodiversity. LOCATION: Alberta, Canada. METHODS: We evaluated how current climate, climate change (as a ghost of the past), land use and wetland water quality relate to aquatic macroinv ...
acid mine drainage; aquatic invertebrates; biological assessment; ecosystems; energy transfer; food webs; macroinvertebrates; mining; predators; streams; surveys; New Zealand
Abstract:
... Food web properties can be used in bioassessment as indicators of ecosystem stress, although logistical constraints restrict their widespread use. Size spectra (body mass–abundance relationships) are easier to produce, still incorporate much of the variation in feeding interactions and indicate the strength of the energy transfer efficiency. Here we examined the effect of acid mine drainage on the ...
... Despite huge efforts by academia and pharmaceutical industry, cancer remains the second cause of disease-related death in developed countries. Novel sources and principles of anticancer drug discovery are in urgent demand. Marine-derived natural products represent a largely untapped source of future drug candidates. This review focuses on the anticancer drug discovery potential of marine invertebr ...
... The use of organic Ultraviolet (UV) filters has increased in the last years, either in sunscreens, other cosmetics, or even food packaging. These filters may end up in soil and water since the Wastewater Treatment Plants may not successfully remove them. Among them, benzophenones are known to act as endocrine disruptors. However, most of the studies are directed towards vertebrates and aquatic inv ...
... Materials on the aquatic invertebrate fauna in the Maly Patok River basin (the western slopes of the Subpolar Urals) have been presented. These water bodies, which maintain the natural hydrological regime, are located on the territory of the Yugyd-Va National Park. A total of 108 taxa (except for Chironomidae) in the zoobenthos samples and the invertebrate qualitative collections taken in the summ ...
aquatic invertebrates; climate; data collection; ecosystems; floodplains; freshwater; macroinvertebrates; snails; taxonomy; wetlands; China; Europe; North America
Abstract:
... Invertebrates are crucially important components of wetland ecosystems. Their assemblages have been well described for wetlands in many parts of the world, but not for Asia. We sampled macroinvertebrates from 39 freshwater wetlands across Northeastern China. Wetland characteristics included permanent and temporary hydroperiods, and floodplain and palustrine settings. We determined which taxa domin ...
... Accurate bioenergetic carrying capacity estimates of wetlands on public and private lands, as well as those managed for crop production are important for managing waterfowl populations and habitats. Given the importance of wetlands in the Rainwater Basin region of Nebraska for spring migrating waterfowl, we quantified and compared seed and aquatic invertebrate biomass and true metabolizable energy ...
... The challenges around evidence interpretation for the effects of endocrine-disrupting chemicals (EDCs) on wildlife have been elegantly described in a recent restatement. Pursuing a causal link between EDCs and population-level effects in the marine environment is not an easy task because of the uncertainty generated by the (still) largely undescribed endocrinology of most marine invertebrates. Thi ...
Escherichia coli; Plecoptera; Trichoptera; ammonia; animal production; aquatic invertebrates; breeding; chlorophyll; coliform bacteria; conservation programs; ecosystems; farmers; habitats; hydrology; landowners; laws and regulations; livestock; macroinvertebrates; nutrient content; nutrients; oxygen; piedmont; production technology; streams; total suspended solids; toxicity; water quality; Argentina
Abstract:
... Breeding of livestock in confined areas has recently become an alternative of production for farmers in Northwest Patagonia. Strong concern about how these practices can alter health and integrity of streams exists and mitigation measures from livestock impact have been recently incorporated to the legislation. We examined changes in water quality, riparian integrity, habitat conditions, and macro ...
Anne-Laure Besacier Monbertrand; Pablo Timoner; Kazi Rahman; Paolo Burlando; Simone Fatichi; Yves Gonseth; Frédéric Moser; Emmanuel Castella; Anthony Lehmann
... Mountainous running water ecosystems are vulnerable to climate change with major changes coming from warming temperatures. Species distribution will be affected and some species are anticipated to be winners (increasing their range) or losers (at risk of extinction). Climate change vulnerability is seldom integrated when assessing threat status for lists of species at risk (Red Lists), even though ...
Ephemeroptera; Plecoptera; Trichoptera; aquatic invertebrates; land management; linear models; macroinvertebrates; mountains; national parks; protocols; sand; water quality
Abstract:
... Many land management water quality programs must assess water quality using aquatic macroinvertebrates for nonregulatory purposes but conduct these assessments using regulatory protocols. The costs of providing data using regulatory protocols can be financially burdensome for these programs. Macroinvertebrate water quality monitoring in Great Smoky Mountians National Park in the United States is a ...
... Fipronil is a phenylpyrazole insecticide that entered the market to replace organochlorides and organophosphates. Fipronil impairs the regular inhibition of nerve impulses that ultimately result in paralysis and death of insects. Because of its use as a pest control, and due to runoff events, fipronil has been detected in freshwater systems near agricultural areas, and therefore might represent a ...
... Paracetamol (APAP) is one of the most widely used anti-inflammatory and analgesic drugs in human being health care and has been universally detected in various aquatic environments. However, its potential adverse effects and toxic mechanisms on freshwater invertebrates still remain unclear. In the present study, the effects of APAP on the expressions of Nrf1 and the antioxidant related genes inclu ...
altitude; aquatic ecosystems; aquatic invertebrates; canopy; ecosystem services; geographical distribution; gravel; habitats; human population; indigenous species; land use; linear models; mountains; plant litter; species diversity; streams; water quality; water supply
Abstract:
... Mountains harbor rich biodiversity and high levels of endemism, particularly due to changes in environmental conditions over short spatial distances, which affects species distribution and composition. Studies on mountain ecosystems are increasingly needed, as mountains are highly threatened despite providing ecosystem services, such as water supply for half of the human population. We aimed to un ...
Ephemeroptera; Trichoptera; aquatic invertebrates; arithmetics; biological assessment; drinking; environmental monitoring; macroinvertebrates; river water; rivers; surface water; water quality; Himalayan region; India
Abstract:
... Rapid bio-assessment of River Ujh has been carried out using benthic macro-invertebrates based on the Hindu-Kush Himalayan (HKH) rapid field bio-assessment protocol. Meanwhile, the assessment of water quality in the river was performed using the weighted arithmetic water quality index (WA-WQI), based on physiochemical parameters. Furthermore, the biotic indices (such as Nepalese Biotic Score (NEPB ...
Luis C. Kellner Filho; Bruno W. Picão; Marcio L. A. Silva; Wilson R. Cunha; Patricia M. Pauletti; Gustavo M. Dias; Brent R. Copp; Camila S. Bertanha; Ana H. Januario
... The occurrence of sulfated steroids and phenolics in marine organisms is quite widespread, being typically reported from Echinoderms. In contrast, alkane and alkene aliphatic sulfates are considerably rarer with examples being reported from a diverse array of organisms including echinoderms, sponges and ascidians. While no ecological roles for these metabolites have been proposed, they do exhibit ...
active ingredients; algae; aquatic invertebrates; bacteria; bioactive compounds; drugs; endophytes; fungi; China
Abstract:
... This review outlines the research that was carried out regarding the isolation of bioactive compounds from marine-derived bacteria and fungi by China-based research groups from 2009–2018, with 897 publications being surveyed. Endophytic organisms featured heavily, with endophytes from mangroves, marine invertebrates, and marine algae making up more than 60% of the microbial strains investiga ...
Mediterranean climate; aquatic invertebrates; canopy; community structure; drought; environmental factors; ephemeral streams; fauna; fish; freshwater; frogs; groundwater; indigenous species; mussels; refuge habitats; reptiles; species richness; summer; urbanization; water quality; California
Abstract:
... In many intermittent streams, remnant pools persist after flow ceases and provide refuge for aquatic organisms able to tolerate stagnant water conditions. The conservation value of these pools may be greatly under‐appreciated, especially in regions with a Mediterranean climate, where perennial streams have been substantially modified or disturbed by human activities. Fish, amphibians, aquatic rept ...
aquatic invertebrates; cost effectiveness; drinking water; equipment; grasslands; human population; linear models; livestock; monitoring; pollution; public health; rangelands; rivers; sanitation; students; surveys; wastewater; water quality; Rwanda; Tanzania
Abstract:
... Rwanda is a heavily overpopulated country that also suffers from overstocking with livestock, especially following the return of war refuges after the civil war (1991–1995). At present, approximately 20% of the human population in Nyagatare District in northeastern Rwanda has no access to clean drinking water and sanitation. We used a biotic index based on the presence of selected families of aqua ...
Joko T. Wibowo; Matthias Y. Kellermann; Dennis Versluis; Masteria Y. Putra; Tutik Murniasih; Kathrin I. Mohr; Joachim Wink; Michael Engelmann; Dimas F. Praditya; Eike Steinmann; Peter J. Schupp
Actinobacteria; Firmicutes; Hepatitis C virus; Holothuria; Proteobacteria; Stichopus vastus; aquatic invertebrates; bacteria; biomass; databases; fungi; ions; marine environment; mass spectrometry; screening; sequence analysis; Indonesia
Abstract:
... In order to minimize re-discovery of already known anti-infective compounds, we focused our screening approach on understudied, almost untapped marine environments including marine invertebrates and their associated bacteria. Therefore, two sea cucumber species, Holothuria leucospilota and Stichopus vastus, were collected from Lampung (Indonesia), and 127 bacterial strains were identified by parti ...
... The endocrine disruptor Bisphenol A (BPA), a widely employed molecule in plastics, has been shown to affect several biological processes in vertebrates, mostly via binding to nuclear receptors. Neurodevelopmental effects of BPA have been documented in vertebrates and linked to neurodevelopmental disorders, probably because some nuclear receptors are present in the vertebrate brain. Similarly, endo ...
Dentaliida; Gastropoda; aquatic invertebrates; body size; females; germ cells; males; mating competitiveness; sex ratio; sexual dimorphism; sexual selection; snails
Abstract:
... Male-biased sexual size dimorphism typically evolves via sexual selection for larger males that are favoured by choosy females or are more successful in mate competition with other males. Among marine invertebrates that broadcast their gametes into the ocean for fertilisation, this form of sexual size dimorphism is rare because such species lack direct interactions among males or between the sexes ...
DNA damage; DNA repair; anthropogenic activities; aquatic invertebrates; batteries; bioaccumulation; blood; cadmium; environmental exposure; growth retardation; half life; heavy metals; hepatotoxicity; industry; kidneys; risk; urine; vertebrates
Abstract:
... Cadmium (Cd) is a toxic heavy metal that accumulates in living systems. Exposure can occur occupationally or environmentally. Workers within the electroplating, battery production, and pigment industries are at the highest risk for exposure and have been reported to have increased levels of Cd in their blood and urine. Environmental exposure can be the result of anthropogenic activities or smoking ...
Adelges tsugae; Tsuga canadensis; ammonium; aquatic invertebrates; bedrock; biocenosis; community structure; forests; herbivores; hydrology; macroinvertebrates; nutrient content; riparian vegetation; sediments; soil; streams; trees; Ohio; Virginia; West Virginia
Abstract:
... Eastern hemlock trees (Tsuga canadensis [L.] Carr.) often dominate riparian vegetation of central Appalachian headwater streams, and the invasive hemlock woolly adelgid (Adelges tsugae Annand; HWA) has decimated hemlock stands in this region. Although research concerning HWA impacts on soil, hydrology, and forest structure is emerging, associated changes in stream structure and function are not as ...
... The ability of chemical recognition is important for marine invertebrates to detect if host conditions (such as stress) are suitable for colonisation, and the presence of conspecifics can also be important for host switching. We investigated whether Dissodactylus crinitichelis can recognize the sand dollar Encope emarginata by chemical cues, and if factors such as host stress condition and presenc ...
... Neonicotinoid insecticides have been shown to have high chronic toxicity relative to acute toxicity, and therefore short‐term toxicity tests ≤96 h in duration may underestimate their environmental risks. Among nontarget aquatic invertebrates, insects of the orders Diptera and Ephemeroptera have been found to be the most sensitive to neonicotinoids. To undertake a more accurate assessment of the ri ...
... Freshwaters worldwide are affected by multiple stressors. Timing of inputs and pathways of delivery can influence the impact stressors have on freshwater communities. In particular, effects of point versus diffuse nutrient inputs on stream macroinvertebrates are poorly understood. Point-source inputs tend to pose a chronic problem, whereas diffuse inputs tend to be acute with short concentration s ...
aquatic invertebrates; basins; case studies; community structure; ecological differentiation; ecological function; ecosystems; geographic information systems; highlands; homogenization; macroinvertebrates; models; rivers; species diversity; taxonomy; variance; United States
Abstract:
... Rivers are being increasingly analyzed from a holistic scale focus, imposing the challenge to establish a clear sampling framework that integrates complex valley-to-reach hydrogeomorphic features. Here, we address this challenge by examining macroinvertebrate communities of different hydrogeomorphic patches, or Functional Process Zones (FPZs), established by the GIS-based model RESonate. We deline ...
DNA barcoding; aquatic invertebrates; community structure; cost effectiveness; environmental factors; environmental indicators; environmental monitoring; freshwater; freshwater ecosystems; high-throughput nucleotide sequencing; macroinvertebrates; species diversity; surveys; watersheds; Japan
Abstract:
... Conventional morphology-based identification is commonly used for routine assessment of freshwater ecosystems. However, cost and time efficient techniques such as high-throughput sequencing (HTS) based approaches may resolve the constraints encountered in conducting morphology-based surveys. Here, we characterized stream macroinvertebrate species diversity and community composition via metabarcodi ...
... Lakeshore areas provide important habitat for aquatic invertebrates in shallow lakes. However, these zones are prone to anthropogenic disturbances that include shoreline development, urbanization, nutrient inputs, agricultural and(or) recreational use. Among recreational uses, public access sites are often developed to accommodate boaters and facilitate lake access via boat ramps. Although the ‘fo ...
DNA barcoding; Ephemeroptera; aquatic invertebrates; cytochrome-c oxidase; environmental monitoring; freshwater ecosystems; genes; genetic distance; haplotypes; larvae; mitochondrial DNA; polyphyly; species identification; South Korea
Abstract:
... DNA barcoding of aquatic macroinvertebrates holds much promise as a tool for taxonomic research and for providing baseline reference for phylogenetic analysis and aquatic ecosystem biomonitoring. We obtained 112 novel sequences of the barcode region of the mitochondrial DNA cytochrome c oxidase subunit I gene representing 11 families, 25 genera, and 43 species of mayfly (Insecta: Ephemeroptera) fr ...
analysis of variance; anthropogenic activities; aquatic communities; aquatic invertebrates; climate; cropland; ecosystems; forests; functional diversity; land use; landscapes; macroinvertebrates; monsoon season; piedmont; rivers; species diversity; sugarcane; water quality; Andes region; Argentina
Abstract:
... Human activities altering ecosystems structure and function worldwide strongly affect rivers. We studied aquatic macroinvertebrate communities (taxonomic and functional diversity) from rivers immersed in a forest matrix and rivers flowing through croplands. As rivers of the region experience a monsoon climate, high and low water seasons were also considered and their effect tested. We expected low ...
Coleoptera; Diptera; Ephemeroptera; Plecoptera; Trichoptera; aquatic invertebrates; autumn; community structure; field experimentation; habitats; multidimensional scaling; spring; streams; New Zealand
Abstract:
... To evaluate the effects of debris dams on aquatic invertebrate communities, we sampled benthic invertebrates in debris dams and riffles in three forested headwater streams in New Zealand. As part of a large-scale field experiment, debris dams were subsequently removed from three treatment sections in each of the streams to assess effects on invertebrate communities. Prior to debris dam removal, to ...
... Diversification and speciation of terrestrial organisms are anticipated in oceanic islands such as Macaronesia, a group of Atlantic islands that have remained unconnected to continental landmasses. Hitherto, the diversification of marine organisms in oceanic islands, especially those with low vagility, has received little direct empirical analysis using molecular markers. Here, we focus on such a ...
Matthew S. Bird; Musa C. Mlambo; Ryan J. Wasserman; Tatenda Dalu; Alexandra J. Holland; Jenny A. Day; Martin H. Villet; David T. Bilton; Helen M. Barber-James; Luc Brendonck
... Temporary lentic wetlands are becoming increasingly recognised for their collective role in contributing to biodiversity at the landscape scale. In southern Africa, a region with a high density of such wetlands, information characterising the fauna of these systems is disparate and often obscurely published. Here we provide a collation and synthesis of published research on the aquatic invertebrat ...
... Increased fine sediment deposition is recognised as one of the major causes of biological impairment of rivers and streams influencing all components of aquatic communities. Notably, stream macroinvertebrates are affected showing changes in abundance and community composition. This makes macroinvertebrates an attractive choice for biomonitoring fine sediment stress. However, there are substantial ...
... The detection of surfactants in dishwashing detergents is challenging because the detergents tend to create a lot of foam. The aim of this study was therefore to develop a simple and robust procedure for simultaneous identification and quantification of multiple surfactants in dishwashingdetergents using standard addition method and ultra-performance liquid chromatography-mass spectrometry (UPLC-M ...
... We monitored Roswell springsnail (Pyrgulopsis roswellensis), Koster's springsnail (Juturnia kosteri), and Noel's amphipod (Gammarus desperatus), three endangered aquatic invertebrates, from 2014 through 2017 at Bitter Lake National Wildlife Refuge, Chaves County, New Mexico. We initiated the effort to develop baseline abundance estimates in a rigorous, repeatable framework, and to inform long-term ...
... The construction of levees breaks the connection of floodplains with river channels. Few assessments have examined the impacts on aquatic ecosystems. We developed a multi-metric index (MMI) based on aquatic invertebrates to assess floodplain wetland condition in the Wusuli River, northeastern China. We sampled the aquatic invertebrate communities in 18 floodplain wetlands along the Wusuli River in ...
... A palaeoecological study of a subarctic minerotrophic peatland was undertaken to reconstruct the formation of the site as an archive of slope geomorphological processes. The study peatland is located about 400 m from Caribou slope (unofficial name) on Lepage Island, Lac Wiyâshâkimî, Nunavik (northern Québec, Canada). The site is close to the lakeshore and receives runoff directly from Caribou slop ...
... Examining the relative contribution of local environmental stressors and regional factors in structuring biological communities is essential for biodiversity conservation and environmental assessment, yet their relative roles for different community characterizations remain elusive. Here, we examined the responses of taxonomic and functional structures of stream macroinvertebrate communities to lo ...
Cladocera; Rotifera; air; aquatic invertebrates; atmospheric circulation; diapause; feces; fish; hatching; insects; lakes; national parks; photoperiod; rain; seasonal variation; species dispersal; temperature; water birds; water flow; wetlands; wind; Spain
Abstract:
... Aquatic invertebrates can be geographically dispersed by abiotic vectors (wind, rain and water flow) or organisms (mainly by insects, fishes and waterbirds). However, there is a lack of information on the dispersal by waterbirds of cladocerans and especially rotifers, and on the hatching success of the dispersed propagules. Here, we quantify the dispersal of cladocerans and rotifers by waterbirds ...
... The Tri-State Mining District (TSMD) is a historic mining area containing the Tar Creek superfund site and is the source for sediment-bound metals in Grand Lake. Despite elevated concentrations of cadmium, lead, and zinc, no evidence of sediment toxicity has been observed during previous investigations; however, these studies were limited to lake transects with mostly deep-water sediments. The pur ...
Tim Termaat; Arco J. van Strien; Roy H. A. van Grunsven; Geert De Knijf; Ulf Bjelke; Klaus Burbach; Klaus‐Jürgen Conze; Philippe Goffart; David Hepper; Vincent J. Kalkman; Grégory Motte; Marijn D. Prins; Florent Prunier; David Sparrow; Gregory G. van den Top; Cédric Vanappelghem; Michael Winterholler; Michiel F. WallisDeVries
Anisoptera (Odonata); aquatic invertebrates; biodiversity; birds; butterflies; ecosystems; global warming; macroinvertebrates; monitoring; temperature; Cyprus; Europe
Abstract:
... AIM: Poleward range shifts of species are among the most obvious effects of climate change on biodiversity. As a consequence of these range shifts, species communities are predicted to become increasingly composed of warm‐dwelling species, but this has only been studied for a limited number of taxa, mainly birds, butterflies and plants. As species groups may vary considerably in their adaptation t ...
... Bugula neritina is a common invasive cosmopolitan bryozoan that harbors (like many sessile marine invertebrates) a symbiotic bacterial (SB) community. Among the SB of B. neritina, “Candidatus Endobugula sertula” continues to receive the greatest attention, because it is the source of bryostatins. The bryostatins are potent bioactive polyketides, which have been investigated for their therapeutic p ...
... Perfluoroalkylated acids (PFAAs) are persistent chemicals that have been detected globally in the environment and in wildlife. Although it is known that PFAAs sorb to solid matrices, little is known on PFAA concentrations in soils. PFAA pollution has often been studied in aquatic invertebrates. However, this has rarely been done on terrestrial species. In the present study, we examined whether the ...
Bacillariophyceae; aquatic invertebrates; bacterial communities; environmental factors; habitats; hydrochemistry; land use; macroinvertebrates; prediction; soil types; species richness; streams; watersheds; Finland
Abstract:
... CONTEXT: One approach to maintain the resilience of biotic communities is to protect the variability of abiotic characteristics of Earth’s surface, i.e. geodiversity. In terrestrial environments, the relationship between geodiversity and biodiversity is well recognized. In streams, the abiotic properties of upstream catchments influence stream communities, but the relationships between catchment g ...
aquatic invertebrates; ecoregions; macroinvertebrates; nestedness; rivers; species dispersal; species diversity; watersheds
Abstract:
... Among the different mechanisms that shape metacommunity structure, species sorting and mass effects are the most studied and reported mechanisms. Species sorting is related to environmental filtering, while mass effects are related to high dispersal between communities, which ultimately overrides environmental controls. In this paper, we aimed at studying metacommunity patterns of stream macroinve ...
aquatic invertebrates; climate; community development; community structure; drought; drying; ecological communities; ecological footprint; ecosystem services; geographical distribution; models; nestedness; species diversity; streams; temporal variation; United Kingdom
Abstract:
... AIM: In fresh waters, most biogeographical understanding of how extreme events such as drought modify biodiversity and ecosystem functioning derives from static, spatial comparisons of ecological communities, between intact and disturbed sites or along stress gradients. Impacts of drought on the development of ecological communities over time remain poorly resolved, with information on parallel tr ...
... The majority of reports on the toxic effect of cyanobacterial metabolites on the freshwater invertebrates is based on determination of two endpoints: mortality or immobilization. However, detection of sub-lethal effects requires more sensitive indicators The aim of the present study was to evaluate the applicability of digital-video analysis for determination of early behavioral and physiological ...
aquatic invertebrates; biomass; climatic factors; community structure; freshwater; global change; habitats; indigenous species; landscapes; lentic systems; lotic systems; models; planning; ponds; prediction; species diversity; surface water; Argentina
Abstract:
... Freshwater biodiversity is showing a global decline in relation to environmental change and there is an urgent need to quantify different facets of biodiversity to assess the conservation value of freshwater ecosystems. Identifying the ecological drivers of arid and semiarid Patagonian waterbodies is a critical requirement for planning action to conserve these still poorly understood habitats. We ...
Polychaeta; ammonia; aquatic invertebrates; bioturbation; cell respiration; electromagnetic field; energy balance; energy metabolism; excretion; geophysics; magnetic fields
Abstract:
... The aim of the present study was to determine the effect of an electromagnetic field (EMF) of value typically recorded in the vicinity of submarine cables (50 Hz, 1 mT) on the behavior and bioenergetics of the polychaete Hediste diversicolor. No avoidance or attraction behavior to EMF was shown, but the burrowing activity of H. diversicolor was enhanced in EMF treatment, indicating a stimulating e ...
... Water abstraction for irrigation has an important effect on stream organisms in general and aquatic macroinvertebrates in particular. The alteration of flow modifies the habitat conditions and creates important ecological constraints for many of these animals, so shaping the communities and affecting their diversity. With the aim to assess the impact of flow and habitat changes due to water abstra ...
... Nowadays, due to the physical, chemical, electrical, thermal and mechanical properties of carbon nanotubes (CNT), its have been currently incorporated into biomedical products and they are employed in drug delivery drug administration, biosensor design, microbial treatments, consumer products, and new products containing CNT are expected in the future. CNT are hydrophobic and have a tendency to ac ...
... L-proline (L-PROL) is an essential amino acid, a constituent of many proteins and the osmoprotective molecule produced and accumulated in higher plants and some freshwater microalgae in response to various environmental stressors. Knowledge on thermoprotective effects of this amino acid on freshwater invertebrates is very scarce. Therefore the aim of our study was to determine the effect of L-PROL ...
Coenagrionidae; adulthood; adults; air temperature; aquatic invertebrates; body size; climate; climate change; eggs; models; molting; nymphs; ontogeny; predatory insects; rearing; survival rate; water temperature; wetlands; wildlife habitats; Great Plains region; North America
Abstract:
... Current climate projections for the Great Plains of North America indicate markedly increased air temperatures by the end of the current century. Because the Great Plains contains >80,000 intermittent wetlands that serve as irreplaceable wildlife habitat, this projected warming may have profound effects throughout a continental-scale trophic network. However, little research has been done to deter ...
... DMSO is a very common solvent for hydrophobic chemicals that may pose a threat to aquatic organisms. Ectoine (ECT) is a protective amino acid produced by various strains of halophilic bacteria with high potential to alleviate detrimental effects induced by environmental stressors. This amino acid is used in many cosmetics and pharmaceuticals may enter aquatic ecosystems interacting with ions and m ...
Brachionus; adverse effects; aquatic environment; aquatic invertebrates; biomarkers; genes; heavy metals; industry; metallurgy; oxidative stress; pollution; population growth; risk assessment; seawater; steel; toxicity; transcription (genetics); South Korea
Abstract:
... Metal pollution is one of the major threats to the aquatic environment due to its high bio-concentrations and toxicity. Although numerous studies have been conducted to understand detoxification and toxicity mechanisms in aquatic invertebrates, most of them were limited in laboratory study. Here, we investigated adverse effects of the contaminated-natural seawater on the marine rotifer Brachionus ...
... Aquatic invertebrates play an important role in plant decomposition. However, little information is available regarding the relative importance of micro-, meio- and macroinvertebrates in this process, particularly their role in the decomposition of buried organic matter. To investigate the role of these invertebrates in the decomposition of the aquatic macrophyte Vallisneria natans, leaves of V. n ...
... Ocean acidification (OA) is caused by alteration of global ocean carbon chemistry due to the increased pCO2 in the atmosphere and caused deleterious impacts on the marine ecosystem. Although various detrimental effects of OA were reported in marine organisms, the potential impact of OA on aquatic invertebrates still remains largely unknown. Here, we examined changes in life parameters and antioxid ...
... Extraction of Canada’s oil sands has created 1 billion m³ of tailings, which are stored in on-site tailings ponds. Due to limited storage capacity, the planned release of tailings into the surrounding environment may be required. This represents an environmental management challenge, as the tailings contain contaminants that are known toxins to aquatic communities. Of particular concern are naphth ...
... Although many efforts have been made to understand the toxic effects of metals in aquatic invertebrates, there are limited data regarding metal toxicity in natural ecosystems, as most previous studies were conducted under controlled laboratory conditions. To address this data gap, we analyzed toxic effects and molecular responses in the marine rotifer Brachionus koreanus and the marine copepod Tig ...
... Selenium (Se) is a contaminant of concern in many aquatic ecosystems due to its narrow range between essentiality and toxicity in oviparous (yolk-bearing) vertebrates. The objective of the present study was to determine the effects of Se, experimentally added to in situ limnocorrals as selenite, on invertebrate communities and fathead minnow (Pimephales promelas) at environmentally realistic Se co ...
... Harmful algal blooms are a source of increasing concern within the health, economic and ecological sectors. In the Mediterranean Sea, severe blooms of the benthic dinoflagellate Ostreopsis cf. ovata have been occurring since the beginning of the century, causing human intoxications by inhalation of bio-aerosols or direct contact with cells. The toxicity of this dinoflagellate is attributed to the ...
aquatic ecosystems; aquatic food webs; aquatic invertebrates; bioaccumulation; cadmium; copper; fish; guidelines; heavy metals; iron; lead; mercury; risk; seasonal variation; seston; water power; zinc; China
Abstract:
... The Three Gorges Reservoir (TGR) of China, the largest hydropower project over the world, has attracted much attention to the water impoundment and water-level manipulation. In this study, we evaluated potential effects of water impoundment and seasonal water-level manipulation on the bioaccumulation, trophic transfer and health risk of HMs (Cu, Fe, Zn, Hg, Cd and Pb) in food web components (sesto ...
... The assessment of diversity and similarity is relevant in monitoring the status of ecosystems. The respective indicators are based on the taxonomic composition of biological communities of interest, currently estimated through the proportions computed from sampling multivariate counts. In this work we present a novel method to estimate the taxonomic composition able to work even with a single samp ...
... The transition from the last pelagic larval stage to the first benthic juvenile stage in the complex life cycle of marine invertebrates, such as the American lobster Homarus americanus, a species of high economic importance, represents a delicate phase in these species development. Under future elevated pCO2 conditions, ocean acidification and other elevated pCO2 events can negatively affect crust ...
... Freshwaters are among the most endangered ecosystems in the world as a result of anthropogenic interference such as pollution. Pollution in the form of neonicotinoids has been intensively studied, but data thus far is often conflicted by contrasting responses between laboratory and field experiments. In addition, toxicity data are scarce and contradictory for insects such as Odonates (dragonflies ...
... The Pine River downstream of the Velsicol Superfund site has been contaminated with various hydrophobic organic pollutants for more than 50 years. Remediation and sediment dredging near the site began in spring of 1999, and was completed in 2006. In 2011, the Michigan Department of Environmental Quality completed a baseline assessment report long-term monitoring plan for the Pine River. However, t ...
... Immersion euthanasia methods reported over the most recent decades for aquatic invertebrates use organic alcohols or halogenated hydrocarbons that can interfere with nuclear magnetic resonance (NMR) analysis. A rolling study design evaluated potassium chloride (KCl), magnesium chloride (MgCl₂), and magnesium sulfate (MgSO₄) as potential ion-based euthanasia methods for moon jellyfish (Aurelia auri ...
animal communities; aquatic invertebrates; autumn; biomass; body size; community structure; ecosystems; elemental composition; food webs; larvae; life history; longevity; macroinvertebrates; nitrogen; phenology; phosphorus; plant litter; prediction; stoichiometry; streams; subsidies; winter
Abstract:
... Increases in nitrogen (N) and phosphorus (P) availability are changing animal communities, partly by altering stoichiometric imbalances between consumers and their food. Testing relationships between resource stoichiometry and consumer assemblage structure requires ecosystem‐level manipulations that have been lacking to date. We analysed patterns of macroinvertebrate community composition in five ...
... Flow regime alteration by dams has been recognized as a major impact factor for aquatic communities. Spain is currently the member state of the EU with the largest number of large reservoirs. With the broad objective of diminishing the ongoing river degradation trend through the management of environmental flows and the use of biomonitoring tools, we investigated the effects of dams on stream macr ...
... It is now recognized that host microbiome, the community of microorganisms that colonize the animal body (e.g. microbiota) and their genomes, play an important role in the health status of all organisms, from nutrient processing to protection from disease. In particular, the complex, bilateral interactions between the host innate immune system and the microbiota are crucial in maintaining whole bo ...
... Functional traits are increasingly being used to predict extinction risks and range shifts under long‐term climate change scenarios, but have rarely been used to study vulnerability to extreme climatic events, such as supraseasonal droughts. In streams, drought intensification can cross thresholds of habitat loss, where marginal changes in environmental conditions trigger disproportionate biotic r ...
... Ingestion of microplastics can impair nutrition of marine invertebrates. In a laboratory study, we tested whether microplastics affect ingestion rates and gastrointestinal enzyme activities in the marine isopod Idotea emarginata. Isopods were fed for eight days with one out of four different food formulations: natural food (the brown alga Fucus vesiculosus) or synthetic diet consisting of freeze-d ...
... Much like finding a needle in a haystack, the effort required to detect a rare and endangered species increases inversely with limited taxa distribution. The infrequency of detections combined with limited fiscal resources often leaves scientists with knowledge gaps about the ecological niche and habitat requirements necessary for conserving rare species. The Arsapnia arapahoe snowfly (A. arapahoe ...
... Urban-use pesticides present a unique risk to non-target organisms in surface aquatic systems because impervious pavement facilitates runoff that may lead to serious contamination and ensuing aquatic toxicity. Fipronil is an insecticide used at high rates in urban environments, especially in regions such as California. This compound and its biologically active degradation products have been detect ...
Melanoides tuberculatus; aquatic invertebrates; bags; empirical research; fish; fish consumption; freshwater; humans; infrared spectroscopy; microplastics; nylon; polyethylene; polypropylenes; predation; recycling; rivers; trophic levels; water pollution; Nigeria; Rhine River
Abstract:
... Freshwater environments are the route through which inland plastics are transported to the ocean, explaining why the number of freshwater microplastic (MP) studies has recently been increasing. Despite the lack of recycling and the presence of severe plastic pollution in many African countries, MPs have been scarcely reported in African freshwaters and the current study gives the first empirical a ...
DNA barcoding; Gastropoda; aquatic invertebrates; biodiversity; genetic variation; monitoring; morphometry; phenotype; surveys; sympatry; wetlands; Alberta
Abstract:
... Sympatric populations of Loosely Coiled Valve Snail (Valvata lewisi ontariensis Baker, 1931) and Fringed Valvata (Valvata lewisi Currier, 1868) are documented from Alberta, Canada, for the first time. Both forms have been identified concurrently in aquatic invertebrate survey samples collected from three wetlands in northeastern Alberta by the Alberta Biodiversity Monitoring Institute. Molecular a ...
... The antidepressant fluoxetine (FLX), a selective serotonin reuptake inhibitor, is widely prescribed for the treatment of depression and anxiety disorders. Nowadays, measurable quantities of FLX have been frequently detected in the aquatic ecosystems worldwide, which may pose a potential threat to aquatic organisms. Although the impacts of FLX exposure on immune responses are increasingly well docu ...
... Interactions of pesticides with biotic or anthropogenic stressors affecting stream invertebrates are still poorly understood. In a three-factor laboratory experiment, we investigated effects of the neonicotinoid imidacloprid, food availability, and population density on the New Zealand mayfly Deleatidium spp. (Leptophlebiidae). Larval mayflies (10 or 20 individuals) were exposed to environmentally ...
... Macroinvertebrate grazers mainly feed on periphyton comprising of algae and detritus in streams, and sometimes feed on plant detritus or other invertebrates. We determined food habits of 21 grazer species (19 mayflies, 1 caddisfly, and 1 net-winged midge) from their gut contents, and systematically examined whether taxonomic affiliation, flow habitat, or body size are responsible for variations in ...
... The food habits of three non-native cichlid fishes, Mayan cichlid (Mayaheros urophthalmus), Mozambique tilapia (Oreochromis mossambicus) and Nile tilapia (O. niloticus), in the lowermost Chao Phraya River basin, Thailand, was examined by stomach contents analysis. The index of preponderance, an index of the importance of prey items, was calculated from two relative metrics of prey quantity: percen ...
... Responses of marine invertebrates to anthropogenic noise are insufficiently known, impeding our understanding of ecosystemic impacts of noise and the development of mitigation strategies. We show that the blue mussel, Mytilus edulis, is negatively affected by ship-noise playbacks across different levels of biological organization. We take a novel mechanistic multi-method approach testing and emplo ...
... Running waters in Mediterranean regions are strongly regulated by dams, which produce significant alterations to natural flow regimes. Climate change will reduce discharge and increase flow intermittence in Mediterranean streams, which will lead to an intensified flow regulation to meet water demands. Very little is known about how the functional features of aquatic communities vary along combined ...
... The rapid dissemination of microplastics in many habitats of the oceans has raised concerns about the consequences for marine biota and ecosystems. Many adverse effects of microplastics on marine invertebrates are consequences of ingestion. Accordingly, the identification of mechanisms that facilitate the uptake of microplastics is essential for the evaluation of possible implications for marine o ...
... Much recent interest has arisen in investigating Streptomyces isolates derived from the marine environment in the search for new bioactive compounds, particularly those found in association with marine invertebrates, such as sponges. Among these new compounds recently identified from marine Streptomyces isolates are the octapeptidic surugamides, which have been shown to possess anticancer and anti ...
... Copper (Cu) is an essential trace metal, but may also be toxic to aquatic organisms. Although many studies have investigated the cytotoxicity of Cu, little is known about the in vivo genotoxic potential of Cu in marine invertebrates. We investigated the genotoxicity of Cu in 2 pelagic calanoid copepods, Acartia tonsa and Temora longicornis, and the intertidal harpacticoid copepod Tigriopus brevico ...
... The aim of this research was to assess genotoxicity and cytotoxicity responses in aquatic animals exposed to 50 Hz 1 m T electromagnetic field (EMF). Rainbow trout (Oncorhynchus mykiss) at early stages of development were exposed to EMF for 40 days, whereas marine benthic invertebrates – the common ragworm Hediste diversicolor and the Baltic clam Limecola balthica – for 12 days. To define genotoxi ...
... It is often beneficial for animals to discriminate between different threats and to habituate to repeated exposures of benign stimuli. While much is known about risk perception in vertebrates and some invertebrates, risk perception in marine invertebrates is less extensively studied. One method to study risk perception is to habituate animals to a series of exposures to one stimulus, and then pres ...
anthropogenic activities; aquatic invertebrates; atmospheric precipitation; climate; data collection; environmental factors; eutrophication; freshwater; habitats; lentic systems; meta-analysis; pollutants; spatial data; species richness; surface water; systematic review; urban areas
Abstract:
... One of the main constraints affecting invertebrate diversity in many freshwater lentic habitats is the presence of a dry phase which forces aquatic organisms to avoid this period through the migration to other water bodies or the production of resting stages. Field studies show contradictory results when comparing invertebrate diversity in permanent (PW) and temporary lentic waters (TW). Our objec ...