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Upstream Changes in Fish Populations following Impoundment of Sagehen Creek, California
Author(s) -
Erman Don C.
Publication year - 1973
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1973)102<626:ucifpf>2.0.co;2
Subject(s) - catostomus , trout , fish <actinopterygii> , fishery , rainbow trout , abundance (ecology) , brown trout , biology , environmental science , ecology
Fish populations were compared before (1952–1961) and after (1970–1972) construction of Stampede Reservoir in a mile of Sagehen Creek above the reservoir. Relative abundance and species composition were quite different after reservoir construction. Suckers (Catostomus platyrhynchus and C. tahoensis) are now numerically dominant (79% of all fish); whereas, formerly they made up 18% (by numbers) of the fish composition. Rainbow trout have increased, but brown trout and whitefish have decreased; and brook trout have not been collected since impoundment. Reservoir construction is the only major change in the Sagehen Creek watershed.