Record Display for the EPA National Library Catalog

RECORD NUMBER: 285 OF 848

OLS Field Name OLS Field Data
Main Title Effects of Siltation and Coarser Sediments on Distribution and Abundance of Stream-Inhabiting Insects.
Author Brusve, M. A. ; Prathe, Kenneth V. ;
CORP Author Idaho Univ., Moscow. Water Resources Research Inst.
Year Published 1971
Report Number OWRR-A-026-IDA; 05024,; OWRR-A-026-IDA(1)
Stock Number PB-207 349
Additional Subjects ( Water pollution ; Fresh water biology) ; ( Insects ; Fresh water biology) ; ( Sediments ; Fresh water biology) ; Sedimentation ; Dredging ; Idaho ; Ecology ; Silts ; Water chemistry ; Diptera ; Coleoptera ; Water pollution effects(Animals) ; Plectoptera ; Ephemeroptera ; Plecoptera ; Trichoptera
Holdings
Library Call Number Additional Info Location Last
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Status
NTIS  PB-207 349 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 74p
Abstract
Sands and coarser sediments affect the distribution and abundance of insects in Emerald Creek and the Middle Fork of the St. Maries River in Idaho. Stream profile, substrate conditions, water chemistry and benthos were measured at seventeen permanent stations. Substrate simulation studies were conducted in an artificial stream in the laboratory to better define the relationship of substrate to five species of aquatic insects. Coarse and fine gravels with unimbedded cobble were preferred over fine sands and silt with partially or completely imbedded cobble by most insects. Habitats with few cobble and large amounts of sand and silt had low species diversities and biomass. Abnormal sediment production from rockhounding, dredge mining, and roadbuilding cause adverse effects on the stream environment and insects. (Author)