Salmon
RELEASING SALMON: Trucking smolts versus imprinting in the Sacramento Index: Recovery of Coded-Wire Tags from Chinook Salmon in California’s Central Valley Escapement, Inland Harvest, and Ocean Harvest in 2017, read full report. CLICK HERE
CDFW’s GrantTab-2023 of Central Valley Chinook Escapement Database Report > CLICK HERE.
The Sacramento – San Joaquin River system in California’s Central Valley is the principal producer of Chinook Salmon, caught in California’s ocean fisheries and contributes appreciably to Chinook Salmon harvest off the coasts of Oregon and Washington. This system also supports one of the largest river sport fisheries for Chinook Salmon on the Pacific Coast in the Sacramento River. Chinook Salmon in the Central Valley are comprised of four runs: late-fall, winter, spring, and fall runs. Run designation is based primarily on the season during which adult Chinook returning from the Pacific Ocean enter fresh water on their upstream spawning migration. Currently, both the ocean and river fisheries in California are managed to focus exploitation on Central Valley fall-run Chinook Salmon. The fisheries are largely possible as the result of a high level of hatchery production, both for mitigation and population supplementation. There is a small sport fishery for late-fall-run Chinook Salmon in the Sacramento River. Sacramento River winter-run Chinook are listed as endangered under both the California Endangered Species Act (CESA) and U.S. Endangered Species Act (ESA). Central Valley spring-run Chinook Salmon are listed as threatened under both the CESA and the ESA. Given their protected status, fisheries management of Chinook Salmon in California is designed to avoid incidental harvest of Central Valley winter-run and spring-run Chinook Salmon.
FROM CALFISH.ORG: Central Valley Constant Fractional Marking/Tagging and Recovery Programs
The Central Valley Constant Fractional Marking/Tagging Program (CFM) was initiated in the spring of 2007 to estimate the relative contribution of hatchery production to fishery harvest and spawner escapement, and to evaluate various release strategies employed in the Central Valley.
CFM Report – 2021 Marking Season
CFM Report – 2020 Marking Season
CFM Report – 2019 Marking Season
CFM Report – 2018 Marking Season
CFM Report – 2017 Marking Season
CFM Report – 2016 Marking Season
CFM Report – 2015 Marking Season
CFM Report – 2014 Marking Season
CFM Report – 2013 Marking Season
CFM Report – 2012 Marking Season
CFM Report – 2011 Marking Season
CFM Report – 2010 Marking Season
CFM Report – 2009 Marking Season
The CFM Marking/Tagging Program is implemented at the Coleman National Fish Hatchery, Feather River Fish Hatchery, Nimbus Fish Hatchery, Mokelumne River Fish Hatchery, and the Merced River Hatchery. These hatcheries produce and release juvenile Chinook salmon and steelhead to mitigate for lost habitat and declining anadromous fish production. View Larger Hatchery Map…
• Anadromous Salmonid Population Monitoring Documents
2023 SALMON DISASTER RELIEF FORMS
Trends in Chinook salmon spawner abundance and total run size highlight linkages between life history, geography and decline. To understand trends in Chinook salmon production, and how they are related to life history, this study compiled time series data from the Fraser River to the Sacramento River on total run size (pre-fishery abundance) and escapement (post-fishery spawner abundance) and fit time series models to estimate trends across this bioregion. Credit: by William Atlas published Sept. 2, 2022, revised March 2023 from the Wild Salmon Center, Portland, Ore. Click here to read PDF
The Nigiri Project: Managed floodplains for salmon restoration in the Yolo Bypass. Project outline draft, Nov. 9, 2017. The research is a collaborative project among the UC Davis Center for Watershed Sciences, the California Department of Water Resources and CalTrout. Click Here to read more.
2017 NOAA Report on the Evaluation of alternative marking/tagging systems for hatchery produced California Fall-Run Chinook Salmon: https://repository.library.noaa.gov/view/noaa/14328
Evaluation of a single nucleotide polymorphism baseline for genetic stock identification of Chinook Salmon in the California Current large marine ecosystem from 2014 by NOAA, click here.
Is this why hatchery production is going downhill and why the state is losing its stocks?
Hatcheries and the Long Term Recovery of Central Valley Chinook Salmon by Amanda Cranford, Acting Sacramento River Basin Branch Chief NOAA Fisheries West Coast Region. March 10, 2023. Presented to the Sacramento River Science Partnership
Klamath and Trinity River Reports from the Fish & Game Commission, 2023. Click Here to read full report.
Are There Too Many Salmon in the North Pacific Ocean? Click Here. From the North Pacific Anadromous Fish Commission newsletter 51, Jan. 2022. Overabundance of salmon, combined with effects of recent marine heat waves, may have been responsible for unexpectedly low returns of all five species of Pacific salmon across the North Pacific in 2020?
A historical (1920s) and statistical review of the Sacramento-San Joaquin Salmon Fishery. Click Here. Division of Fish and Game of California Fish Bulletin No. 17 | Sacramento-San Joaquin Salmon (Oncorhynchus Tschawytscha) Fishery of California, by G. H. Clark, Bureau of Commercial Fisheries.
PFMC Klamath Salmon data sheets: Page 1: Estimates of Yurok and Hoopa Valley reservation Indian gillnet Chinook harvest in numbers of fish, CLICK HERE; Page 2: Summary of Klamath River fall Chinook salmon estimates in numbers of adults and jacks, CLICK HERE.
PFMC Management Plan, August 2022, Click Here to read more
Identifying hidden biocomplexity and genomic diversity in Chinook salmon, an imperiled species with a history of anthropogenic influence. Click Here to read full paper
Sacramento Fall Run Escapement data chart: Escapement, harvest, and production data and preliminary estimated restoration coals for chinook salmon based on doubling of natural production, CLICK HERE to view.
Click Here to read Review of the Central Valley Angler Survey by West Inc., Enviromental & Statistical Consultants. Summary: Inland sport harvest of Chinook salmon in California’s Central Valley (CV) streams comprises a significant proportion of the total escapement. The CV angler harvest survey, reinitiated in 2007, is a long-term monitoring program designed to develop annual estimates of total angler effort and in-river harvest of sport fish from the Sacramento River and major tributaries. In addition to Chinook salmon, the survey includes a number of other species considered to have recreational value. As described in Titus et al. (2009), the key objectives of the CV angler survey specific to Chinook salmon are:
- Analysis and reporting of angler effort and harvest,
- Estimating the contribution of hatchery Chinook in the CV sport harvest, and
- Estimating the age structure of Chinook salmon and steelhead in the CV sport harvest.
Estimates of Chinook salmon harvest in the recreational fishery are used by the Pacific Fishery Management Council to help determine ocean harvest quotas off the coasts of California, Oregon and Washington (Titus et al. 2009).
This document reviews the existing angler survey design and analysis techniques used in the CV for estimating Chinook salmon angler effort and harvest (Titus et al. 2009). After describing the current angler survey protocol, we provide recommendations for future surveys and analyses of those survey data. The recommended methods will allow for estimation of precision (e.g., confidence interval [CI]), and are expected to reduce bias and improve precision of estimates of Chinook salmon angler effort and harvest in the CV.
Click Here to read a paper on perspectives on Managing Fisheries for Community Wellbeing in the face of climate change by Maritime Studies 2022. The authors asked individuals that sit on advisory bodies to the Pacific Fisheries Management Council to rank 36 statements about coastal community wellbeing.
Pilot Evaluation of Barging Hatchery-Origin Juvenile Salmon from the California Central Valley through the Bay-Delta. Click Here to read
Preliminary Summary for Estimated Adult Pre-Spawn Mortality for all 2021 Central Valley Chinook Salmon Runs Due to Excessive Temperatures in the Sacramento Basin. California Department of Fish and Wildlife. May 2022. Click Here to read
Central Valley Hatchery Salmon Production Is Being Wasted: A Tale of Two Hatchery Salmon Smolt Release Groups, Click Here to read
Central Valley Chinook Salmon In-River Escapement Monitoring Plan – Fisheries Branch, Jan. 2012. Click Here to Read
Eight Decades of Hatchery Salmon
Releases in California’s Central Valley. Factors influencing straying and resilience.
Click Here to read. Fisheries Magazine, Vol. 44, No. 9, Sept. 2019
Historical Abundance and Decline of Chinook Salmon in the Central Valley Region of California. North American Journal of Fisheries Management 18. American Fisheries Society 1998. Authors: Ronald Yoshiyama (UC Davis), Frank Fisher (CDFW), and Peter Moyle (UC Davis). Click Here to Read
CADF&G/Fish Bulletin No. 34: Salmon of the Klamath River, CA
by John O. Snyder, Stanford University
A report of the 1930 Catch of King Salmon in the Klamath River.
The Salmon and the Fishery of the Klamath River.
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Recovery of Coded-Wire Tags from Chinook Salmon in California’s Central Valley Escapement, Inland Harvest, and Ocean Harvest in 2018 Report:
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Recovery of Coded-Wire Tags from Chinook Salmon in California’s Central Valley Escapement, Inland Harvest and Ocean Harvest in 2019 Report: Click Here to Read
Recovery of Coded-Wire Tags from Chinook Salmon in California’s Central Valley Escapement, Inland Harvest, and Ocean Harvest in 2017 Report:
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Salmon Species listed under the endangered species act
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Bigger doesn’t mean better for hatchery-released salmon
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Central Valley Chinook Salmon In-River Escapement Monitoring Plan
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Central Valley Salmon And Steelhead Monitoring Programs
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Science
Escapement Estimation Methods and Grilse Determination Sacramento River Fall Chinook from CDFW – Fisheries Branch, Information compiled by Jason Azat. The information contained in this document is current as of May 2023. To read, click here
Sacramento River County Atlas, Keswick to Verona – Shasta to Yolo County. Authors by the Geographical Information Center. Publisher: Sacramento River Conservation Area Forum, 2013. This atlas (Click Here to download) is composed of 7 maps, one for each county, which depict riparian vegetation, private and public conservation lands and river miles. Download other maps from the website, Click Here
Fish Passage Improvement Project at the Red Bluff Diversion Dam (RBDD), Sept. 2012
Click Here to Read
Flow Recommendations to the State Water Resources Control Board, May 22, 2008
Click Here to Read
Historical channel changes in the lower Yuba and Feather Rivers, 2009
Click Here to Read
Allied Fishing Groups and NCGASA’s document: Repealing the 1996 Striped Bass Management Plan & adoption of the Delta Fisheries Management Plan, June 10, 2019
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Predation: The Impact of Squawfish on Salmonid Populations, a review published by the North American Journal of Fisheries Management, 1981
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CVPIA 1992: Historical and Present Distribution of Chinook Salmon in the Central Valley Drainage of California. Fish Bulletin 179, Vol. One
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Delta smolt survival: Georgiana Slough, published by Fish Guidance on Feb. 22, 2019
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California Hatchery – Review Report 2012. Prepared by the California Hatchery Scientific Review Group click here
Buoyancy regulation by hatchery and wild Coho Salmon during the transition from freshwater to marine environments. American Fisheries Society, January 9, 2011, Vol. 137, Issue 3, 2008, Pages 860-868
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STURGEON and STRIPED BASS
You can express your opinions regarding the future of the CA WHITE STURGEON fishery at sturgeon@wildlife.gov or if you would like a copy of the public meeting minutes from the White Sturgeon Committee Workshop Group, you can email the Fisheries Branch Sturgeon Coordinator: John.Kelly@Wildlife.ca.gov
Population Dynamics and Evaluation of Management Scenarios for White Sturgeon in the Sacramento–San Joaquin River Basin. North American Journal of Fisheries Management 39:896–912, 2019 © 2019 American Fisheries Society. click here
Wildlife.ca.gov papers, click here
Green Sturgeon: Habitat suitability varies in response to drought related flow regimes, May 2020 Environmental Biology of Fishes (103) 1
Habitat Suitabilityarrow_forward
Habitat Use & Behavior arrow_forward
Spatial &Temporal Distribution arrow_forward
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