Filters: partyWithName: Brittanie L. Dabney (X) > partyWithName: Barbara J. Mahler (X)
Folders: ROOT > ScienceBase Catalog > National Water-Quality Assessment Project > Regional Stream Quality Assessment ( Show all descendants )
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ROOT _ScienceBase Catalog __National Water-Quality Assessment Project ___Regional Stream Quality Assessment
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Direct and indirect ecological effects of the widely used insecticide bifenthrin on stream ecosystems are largely unknown. To investigate such effects, a manipulative experiment was conducted in stream mesocosms that were colonized by aquatic insect communities and exposed to bifenthrin-contaminated sediment; implications for natural streams were interpreted through comparison of mesocosm results to a survey of 100 Midwestern streams, USA. In the mesocosm experiment, direct effects of bifenthrin exposure included reduced larval macroinvertebrate abundance, richness, and biomass at concentrations (EC50s ranged 197.6 – 233.5 ng bifenthrin/ g organic carbon) previously thought safe for aquatic life. Indirect effects...
Categories: Data;
Tags: National Water Quality Program,
USGS Science Data Catalog (SDC),
Water Quality
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