Document Type

Thesis

Date of Degree Completion

1971

Degree Name

Master of Science (MS)

Department

Biology

Committee Chair

Stamford D. Smith

Second Committee Member

Robert E. Pacha

Third Committee Member

Jack A. Peary

Abstract

The purpose of this study was to determine the physical and chemical effects of the Cle Elum Reservoir on the Cle Elum River and to evaluate these effects in respect to the Ephemeroptera of the Cle Elum River. Specific objectives were: (1) To determine the effects of the reservoir on current velocity, volume of flow, turbidity, and temperature. (2) To determine the effects of the reservoir on alkalinity, hardness, dissolved oxygen, and pH. (3) To evaluate the effects of the reservoir on the Ephemeroptera of the Cle Elum River.

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