A method for evaluating sediment-induced macroinvertebrate community composition changes in Idaho streams.

ABSTRACT: Human activities can increase sediment delivery to streams, changing the composition, distribution, and abundance of stream aquatic life. Few U.S. states have numeric water quality standards for streambed sediment under the Clean Water Act, so managers often need to develop local application-specific benchmarks. This study developed stream surface fine sediment <2 mm (sand and fines, SF) and macroinvertebrate fine sediment biotic index (FSBI) benchmarks and an application framework to test for sediment-induced macroinvertebrate community composition changes in 1^st-4^th order Idaho streams. FSBI reference benchmarks were calculated as the 25^th percentile FSBI value among reference sites within three ecoregion-based site classes. Two approaches were used to de

SUBMITTER: Williams J 

PROVIDER: S-EPMC11457874 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature