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Gualala River

Steelhead Studies

Due to a dearth of current information on the population status of steelhead in the Gualala River, a northern California coastal stream, in 2001 annual spawning surveys of steelhead (counts of adults and their redds) were initiated on the river. These surveys, now in the seventh of a planned 10-year study, focus on an 18.3-mile reach of the Wheatfield Fork selected as a population-indexing reach.

Also, to complement the spawning surveys, in 2004 snorkeling surveys of juvenile steelhead (JSH) were initiated at selected study sites in the watershed. These surveys focus on summertime rearing and production of JSH in relation to stream flow and water temperature.

After each spawning and snorkeling survey, a diary-type File Memo (FM) of activities and findings is prepared. In addition, each December, a more comprehensive annual report is written, covering the entire year’s study progress.

The main purpose of this web site is to share this preliminary work (in advance of publication) with various agencies, groups and individuals involved with management and recovery work on steelhead–a State and Federally-listed threatened species. And the goal of my work in general is to help ensure that a healthy population of steelhead (and coho salmon) will still be swimming in the river decades from now for future generations to enjoy.

Last Updated: May 12, 2007. RWD

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Web Site content by: Richard DeHaven
Web site design by: G. Richard Yamagata PhD
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