trinity-spawning-survey-report-2020-2023_final.pdf3.07 MB

Salmon redds and carcasses were surveyed on the mainstem Trinity River, California from Lewiston Dam to the confluence with the Klamath River, during the 2020–2023 spawning seasons to map spawning abundance and distribution, evaluate pre-spawn mortality, and characterize redds by species and spawner origin. These surveys supplemented data that has been collected annually since 2002.

Author(s)
picture of Taylor Daley in the field
Taylor Daley
Fish Biologist
Fish and Aquatic Conservation
Additional Role(s)
Klamath Basin Water Temperature Monitoring Program lead
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Area
CA
Arcata,CA
Publication date
Type of document
Annual Report
Facility
Photo of a foggy morning in the Trinity River Valley.
Arcata Fish and Wildlife Office
The Arcata Fish and Wildlife Office is a field office of the U.S. Fish and Wildlife Service. Our work in northern California includes scientific assessments, habitat restoration, and conservation of listed species.
Conservation Office
Arcata,CA
Media Usage Rights/License
Public Domain
Program
A man is fishing in a boat with three young girls. The kids are excitedly pulling a fish out of the water.
Healthy fisheries and waters are the foundation of America’s outdoor traditions and give us the freedom to fish, boat, and enjoy the benefits of outdoor recreation. The Fish and Aquatic Conservation programs work with states, tribes, and communities to provide a comprehensive approach to freshwater...
Program
Falls Church,VA
Species
A huge school of silver fishes swimming in a stream

ESA (NMFS) status: threatened (June 1997 - southern OR/northern CA population)

Coho salmon are a species of Pacific salmon which inhabit the Pacific coast in California, Oregon, Washington, British Columbia, and Alaska.  These fish are also known as silver salmon...

FWS Focus
Species
Kingdom
Animalia
Taxonomic Rank
Species
Ecosystem
River/stream
FWS and DOI Region(s)
Pacific Southwest