USDA Forest Service

Pacific Southwest Research Station

 
Pacific Southwest
Research Station

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Albany, CA 94710-0011
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Publications and Products

Title: Effects of an introduced piscivorous fish on native benthic fishes in a coastal river

Authors: White, Jason L.; Harvey, Bret C.

Date: 2001

Publication Freshwater Biology 46(7): 987-995.

Abstract: We used field surveys to compare the density and mesohabitat-scale distribution of the native coastrange sculpin (Cottus aleuticus) and the prickly sculpin (C. asper) in coastal rivers in northwestern California, U.S.A., with and without an introduced piscivorous fish, the Sacramento pikeminnow, Ptychocheilus grandis. We also measured mortality of tethered prickly sculpin in a field experiment including river, habitat type (pools versus riffles) and cover as factors

Keywords: PSW4351, sculpin, cottidae, field experiment, introduced species, predation, Ptychocheilus grandi

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Citation

    White, Jason L.; Harvey, Bret C. 2001. Effects of an introduced piscivorous fish on native benthic fishes in a coastal river. Freshwater Biology 46(7): 987-995.
Last Modified: August 22, 2006