Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 16 of 16 for “"Freshwater invertebrates"”.
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From landscape to freshwater invertebrates: understanding the effects of peatland restoration on Atlantic Salmon (Salmo salar) habitat in the Flow Country
… on the effects of peatland restoration on freshwater ecology, particularly regarding Atlantic Salmon (Salmo salar) populations that inhabit many peatland-dominated upland river catchments. This study examines the effects of two common peatland restoration techniques, drain blocking and …
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Using wildlife to biomonitor for antimicrobial resistance in the Scottish environment
… were detected. We also investigated the use of freshwater invertebrates as a biomonitoring tool. We utilised invertebrate samples to obtain reference data on the AMR of E. coli present in the freshwater invertebrate gut, across three distinct river catchments. Using the breakpoint plate method, …
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Influences of a <i>Cladophora</i> Bloom on the Diets of <i>Amblema Plicata </i>and <i>Elliptio Dilatata</i> in the Upper Green River, Kentucky
<p>Freshwater mussels are the most imperiled group of freshwater invertebrates globally. Recent research suggests a better understanding of mussel feeding ecology may facilitate and improve conservation efforts. The use of stable isotopes is becoming an increasingly common method to study aquatic …
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Development of an invertebrate bioassay to screen petroleum refinery effluents discharged into freshwater
… used for static toxicity tests on 15 species of freshwater invertebrates and three species of fish. Daphnia pulex was selected for further testing because it was the most sensitive of the animals tested, relatively inexpensive and easy to maintain, and a potential fish-food organism. If the …
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Mercury Concentrations in Snowy Plovers and Sediments of their Breeding Environments in the Southern Great Plains
… nesting. Most saline lakes now primarily receive freshwater inputs via irregular precipitation events and overland flow. Snowy plovers are dependent on consistent spring flows and shallow surface water to maintain foraging habitats and satisfy thermoregulatory needs. Therefore, limited surface …
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Determining the effects of non-native brook stickleback (Cualea inconstans) on the lentic systems at Turnbull National Wildlife Refuge, Cheney, WA
… non-native fishes can cause trophic cascades in freshwater habitats; these effects may be amplified in ephemeral/temporary habitats. Non-native brook stickleback fishes (Culaea inconstans) were first documented on the Turnbull National Wildlife Refuge (WA) in 1999 and are now present in many …
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Invertebrate drift in the upper Columbia River with implications for young-of-the-year white sturgeon
… drift. Overall, the mean density and biomass of invertebrates within the flow was highest in littoral sites and highest in years with the greatest flow. Littoral and thalweg sites had no impact on drifting benthic macroinvertebrate diversity, richness, or evenness. To determine the feeding …
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Invasive fish effects on the invertebrate constituents of wetland communities
<p>The purpose of this research was to assess the impacts of invasive fishes on wetland communities. Within this study we explored fish effects on the invertebrate constituents of these wetlands, and possible niche overlap of fish and dabbling waterfowl using stable isotope analysis. Brook …