| 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
Modified |
Checkout
Status |
| NTIS |
PB-207 349 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
| 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) |
| NTIS Title Notes |
Technical completion rept.. |
| PUB Date Free Form |
Sep 71, |
| Category Codes |
6F; 13B; 57H; 68D |
| NTIS Prices |
PC A04/MF A01 |
| Document Type |
NT |
| Cataloging Source |
NTIS/MT |
| Control Number |
326526807 |
| Origin |
NTIS |
| Type |
CAT |
