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 7 of 7 for “"EPT Taxa"”.
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Effects of sediment upon benthic macroinvertebrates in forested northern Appalachian streams
… sediment.;The fine sediment experiments revealed EPT taxa richness and % climber to be sensitive to increasing proportions of fine sediment. The stream surveys identified significant declines (p < 0.0001) in EPT taxa richness occurring when fine sediment exceeded approximately 1% of the substrate …
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Effects of watershed land use on the benthic macroinvertebrate assemblages in ridge and valley streams in Chattanooga, Tennessee
… assemblages including the total number of taxa (richness), and the number of families of insects belonging to the orders Ephemeroptera, Plecoptera, and Trichoptera (EPT taxa richness). Qualitative sampling efforts collected 76 family level taxa with individual sites ranging from 21 to 41 …
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Land use influences on benthic invertebrate assemblages in southern Appalachian agricultural streams
… warmer temperatures than FA streams. Total and EPT taxa richness was greater in FA streams. Pollution-sensitive Plecoptera were relatively more abundant in FA streams, while tolerant Diptera were more abundant in CA streams. High diversity and Plecoptera abundance was related to high habitat …
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Estimating Embeddedness From Bankfull Shear Velocity in Gravel Streambeds to Assess Sediment Impacts on Aquatic Biota
… regional variation. Burrowing macroinvertebrate taxa, which may use increased sand to escape predation, increased with increasing embeddedness while the number of Ephemeroptera, Plecoptera, Trichoptera (EPT) taxa, the number of lithophilic spawning fish, and the number of salmonid taxa decreased …
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Benthic Macroinvertebrate Community Responses to a Headwater Valley Restoration at Slabcamp Creek, Rowan Co., Kentucky
… biomass at Slabcamp Creek, but no difference in taxa richness was detected between streams. Community metrics based on absolute abundance revealed greater abundance of EPT taxa, scrapers/grazer, clingers, slow seasonal developers, taxa with a large body size at maturity, and low rheophilic taxa …
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Impacts of trace metal pollution, urbanization and aquifer recharge on Spokane River macroinvertebrates
… The downstream reach had the highest family taxa richness (p=0.01), EPT taxa richness (p=0.001) and proportion Trichoptera (p=0.01). These results supported the hypothesis that metal effects would decrease with distance downstream from the source, the Lake Coeur d’Alene basin, indicating that …
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Reference conditions for streams in the Grand Prairie Natural Division of Illinois
… Plecoptera, and Trichoptera insect orders (EPT), a modified Hilsenhoff Biotic Index (HBI), and a 12 parameter Habitat Quality Index (HQI). Reference quality streams were compared to 21 randomly selected meandering and 30 randomly selected channelized streams which were assessed by the …