Results 11 to 20 of about 1,997 (179)
Dietary overlap and selectivity among mountain steppe river fish in the United States and Mongolia. [PDF]
Ecol Evol, 2023 The introduction of nonnative species can influence the dietary characteristics of native species. We compared fishes in rivers with and without the presence of nonnative species to compare the diets of native species. We found nonnative species had more generalist diets and greater dietary overlaps compared to native species. Abstract Lotic systems in
Minder M +4 more
europepmc +2 more sources
The Relationship between Benthic Macroinvertebrate Assemblages and Water Quality Parameters in the Sanyati Basin, Lake Kariba, Zimbabwe. [PDF]
ScientificWorldJournal, 2022 Biological monitoring of reservoirs is important in assessing aquatic health. This study aimed at assessing the structure of benthic macroinvertebrate communities in relation to physicochemical parameters along Sanyati basin shoreline in Lake Kariba, Zimbabwe.
Makumbe P, Kanda A, Chinjani T.
europepmc +2 more sources
Assessing the Relationship Between Macroinvertebrate Metrics and Fine Sediment Index for Ecological Biomonitoring in the Little Akaki River, Addis Ababa, Ethiopia. [PDF]
Ecol EvolHabitat quality had a positive correlation with percentage of Ephemeroptera, percentage of EOT, and Shannon diversity index (r = 0.833, r = 0.880, and r = 0.939, respectively). PSI had positive correlation with number of taxa, and ASPT‐ETHbios (r = 0.819, and r = 0.798, respectively). Most sites were heavily sedimented.
Adino A, Mengistou S.
europepmc +2 more sources
Context specific effects of substrate composition on the taxonomic and functional diversity of macroinvertebrate communities in temperate lowland streams. [PDF]
Ecol EvolWe show that river bed substrate composition is instrumental in structuring macroinvertebrate biodiversity but care should be taken when trying to generalise patterns at a landscape scale as context dependence may be present. Sand and silt are often viewed together in fine sediment research (<2 mm) but we show they consistently support different ...
Mathers KL +7 more
europepmc +2 more sources
Modelling technical and biological biases in macroinvertebrate community assessment from bulk preservative using multiple metabarcoding markers. [PDF]
Mol Ecol, 2021 Abstract DNA metabarcoding from the ethanol used to store macroinvertebrate bulk samples is a convenient methodological option in molecular biodiversity assessment and biomonitoring of aquatic ecosystems, as it preserves specimens and reduces problems associated with sample sorting.
Martins FMS +7 more
europepmc +2 more sources
River Research and Applications, Volume 39, Issue 9, Page 1783-1794, November 2023., 2023 Abstract Flow regulation of montane and alpine headwater streams can fundamentally alter food web structure and energy flows through changes in productivity, resource availability, and community assembly. Dam flow‐release schemes can be used to mitigate the environmental impacts of flow regulation via environmental flows, which can increase discharge ...
Gabriele Consoli +3 more
wiley +1 more source
Environmental Toxicology and Chemistry, Volume 42, Issue 5, Page 1010-1021, May 2023., 2023 Abstract Environmental quality standards (EQS) are typically derived from the results of laboratory studies on single species. There is always uncertainty surrounding the protectiveness of an EQS when applied to real ecosystems containing a multitude of chemical and physical stressors.
Adam Peters +5 more
wiley +1 more source
River Research and Applications, Volume 39, Issue 3, Page 427-443, March 2023., 2023 Abstract Hydropeaking operation leads to fluctuations in wetted area between base and peak flow and increases discharge‐related hydraulic forces (e.g. flow velocity). These processes promote macroinvertebrate drift and stranding, often affecting benthic abundance and biomass.
Diego Tonolla +6 more
wiley +1 more source
Back to the future: Exploring riverine macroinvertebrate communities' invasibility
River Research and Applications, Volume 38, Issue 8, Page 1374-1386, October 2022., 2022 Abstract Riverine communities have been subject to numerous biological invasion events, with crustaceans among the most successful group of invasive animals worldwide. Understanding what makes a river system prone to invasion is of considerable interest to environmental regulators, resource managers, scientists and wider society globally.
Simone Guareschi +4 more
wiley +1 more source
Freshwater Biology, Volume 67, Issue 10, Page 1774-1788, October 2022., 2022 Abstract Large river floodplains are dynamic environments, where alternating low and high flows are key ecological processes shaping aquatic biota. As a result of fluctuations in flow in floodplain channels, the diversity of benthic assemblages is assumed to result from the balance between surface flow connections, which are dominant during high flows,
Pierre Marle +5 more
wiley +1 more source