University of California

Salmon restoration depends on improved habitat


Jim Waldvogel

Author Affiliations

J. Waldvogel is the California/Oregon Sea Grant Extension Advisor, Del Norte and Curry counties.

Publication Information

Hilgardia 51(4):28-29. DOI:10.3733/ca.v051n04p28. July 1997.

PDF of full article, Cite this article


The streams and rivers that California's salmon and trout call home during the freshwater portion of their life cycle have deteriorated over the past 50 years, resulting in decreases in the populations of these salmonids. Habitat deterioration and population changes are caused by natural occurrences (floods, fires, El Niños, drought, predators and changing ocean conditions); land-use practices (mining, timber harvest, highway construction, agriculture, grazing and urban development); increases in fishing effort; and major diversions of water resources and the damming of rivers.

Waldvogel J. 1997. Salmon restoration depends on improved habitat. Hilgardia 51(4):28-29. DOI:10.3733/ca.v051n04p28
Webmaster Email: wsuckow@ucanr.edu