The Gualala River is a mid-size northern California coastal
stream. Its coho salmon and steelhead trout have been on
(Federal/State) endangered species lists for years. Nevertheless,
the present population status of these native fish is unknown,
because populations have not been actively monitored or
estimated for decades.
Because of the dearth of information, in 2001 I began a 10-year
population study of steelhead on the river. One aspect of this study
is annual wintertime surveys by boat of an 18.7-mile reach of the
Wheatfield Fork to monitor spawning populations. A second aspect
is annual summertime snorkeling surveys at various sites to monitor
summertime rearing and production of juvenile steelhead in relation
to stream flow and water temperature. In addition, in 2007 surveys
by helicopter were initiated as a technique to broaden spawning
survey coverage and monitor summertime dewatering--one of the riverís
most serious environmental problems.
The main purpose of this web site is to share study results with
agencies, groups and individuals working to recover the riverís
ecological health and restore its salmonid populations. A secondary
purpose is to educate the lay public about the riverís plight.
Education and public outreach are facilitated through lectures and seminars throughout northern California. View the seminar schedule or arrange a seminar in your local area by clicking here (Seminar Schedule).
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