Benthos data from the Green Lakes Valley Flowage System, 1981 - 1982

Data were collected on benthic invertebrates in the Green Lakes
flowage system during 1981 and 1982. Benthic organisms have been
studied in terms of taxonomic community structure, diversity, and
seasonal changes using rock-picking techniques in the lakes and
Surber-sampling methods in the streams. Preliminary examination
suggests a high degree of similarity in faunal components between
years. In general, more taxa were found in streams than in lakes and
there was a slight decrease in the number of taxa at most sites as
elevation increased except for simuliids and chironomids in Stream 5.
This trend was not noted for the Surber samples.