Solving complex resource issues while balancing the needs of wild fish and people.
LEVEL OF CONCERN: CRITICAL
Sacramento River winter-run Chinook salmon (winter-run) face immediate risk of extinction. The ESU has been extirpated from its native spawning range by dams and has been reduced to a single small spawning population, which is wholly dependent on artificially-created spawning habitat and cold water releases from Shasta Reservoir.
Multiple critically dry years (2012-2016) in a row during the drought reduced the amount of cold water available for release from Shasta Reservoir. Warm water releases drastically reduced winter- run egg and juvenile survival and have likely devastated the population.
Scroll down for more information about the Sacramento River winter-run Chinook salmon. To read the full species account, click here.
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The findings from this study have made it clear – the time to act is now. We can work together to ensure that California will always have resilient populations of wild fish thriving in clean, cold water streams.
Here are some things you can do today:
Click here to learn about CalTrout’s overall “Return to Resilience” plan to save California’s salmonids from extinction.
Historically, Sacramento River winter-run Chinook salmon migrated to the headwaters of the Sacramento, Pit, and McCloud rivers, as well as Battle Creek (Tehama County). All historical spawning habitat is now upstream of major dams. Today, the one remaining population spawns in the mainstem Sacramento River immediately downstream of Keswick Dam near Redding.
Sacramento River winter-run Chinook salmon are critically vulnerable to climate change due to their highly restricted range, dependence on cold water releases from Shasta Dam, and low tolerance for high stream temperatures. Their migration and egg hatching timing during the warmest months of the year make them particularly vulnerable to increasing stream temperatures. Climate change is also likely to make maintaining a cold water pool in Shasta Reservoir more difficult.
Shasta and Keswick dams prevent access to all historical spawning and most juvenile nursery areas for Sacramento River winter-run Chinook. Ironically, this run is entirely reliant on water releases from Shasta and Keswick dams.
Hatchery-raised winter-run Chinook salmon account for nearly a third of the spawning population and are likely accelerating the decline of wild Chinook salmon. NMFS considers the winter-run Chinook salmon population at a moderate risk of extinction from “excessive hatchery influence.”
Problem: Two dams completely block access to over 100 miles of quality spawning and rearing habitat.
Goal: Conduct surveys above Lake Pillsbury to quantify the amount of habitat historically available to salmon and steelhead pre-dams and use the findings to guide the relicensing process and options.
Result: A solution to the dams that balances the needs of wild fish and people.
Problem: Hundreds of miles of tributaries are impassable– key salmon spawning grounds cut off by a myriad of barriers.
Goal: Remove the barriers! Two down, over a dozen to go.
Result: Salmon and steelhead have access to hundreds of miles of natal spawning habitat.
Problem: Consistent flows of cold water are diverted to an exploding legal and illegal cannabis industry. Compounded by four years of drought, some headwater streams now run dry.
Goal: Quantify flows required for fish survival. Use data to influence state policy to better regulate and guarantee streamflows for wild fish.
Result: Salmon and steelhead have enough water in the South Fork Eel to rear in summer and thrive.
Problem: Years of degradation have compromised the estuary.
Goal: Restore tidal marsh lands and passage into tidal slough channels.
Result: Salmon and steelhead rear in high quality habitat growing big and strong before entering ocean.
Conservationists can now point to the largest dam removal project in the U.S. as a success story. The ecosystem of Washington’s Elwha River has been thriving since the removal of its hydroelectric dam system. Recent surveys show dramatic recovery, especially in the near shore at the river’s mouth, where the flow of sediment has created favorable habitat for the salmon population. A new generation of salmon species, some of which are endangered, are now present in the river. Some hope that the restoration of the Elwha River will become a shining example for the removal of dams across the U.S.
PG&E’s Potter Valley Project consists of two dams on the upper mainstem of the Eel River that block access to important high elevation habitat. These dams are coming up for re-licensing next year—a once in 50 years opportunity. CalTrout is working with Humboldt State University to assess habitat conditions above the dams—specifically how many miles of spawning and rearing habitat there is, and how many fish can be produced. Established science will legitimize and empower our demand for improved fish passage as a condition of re-licensing this dam.
Visit the Eel River Recovery Keystone Initiative page to learn more about our work headwaters-to-sea approach to bringing the Eel’s salmon and steelhead back to historic abundance.
Support CalTrout
The Matilija dam on the Ventura River has long been on the list of obsolete dams and now, new innovative removal plans are garnering broad support. CalTrout is working with Patagonia, Surfrider Foundation, the Matilija Coalition, and Ventura County on a funding plan to get the dam removed and habitat restored for critically endangered Southern steelhead. Funding was awarded in December 2016 through California Department of Fish and Wildlife’s Proposition 1 grants program to advance the project to 65% design phase and complete the environmental and permitting requirements over the next 3 years. As part of the Matilija Coalition, we were also awarded a $175K grant from the Open Rivers Fund, a program operated by Resources Legacy Fund and funded by the William and Flora Hewlett Foundation.
CalTrout and partners are currently pursuing more funding opportunities to fuel the Matilija dam removal project. We are committed to this long-term effort. Support our work and help steelhead return home.
Support CalTroutIn 1918, the first dam was finished on the Klamath River, blocking hundreds of miles of spawning and rearing habitat for steelhead and salmon. In the following years, three more dams were built.
Now, nearly a hundred years later, a deal has been signed, the funding is in place, and the dams are coming out in 2020. Now we must plan for years of habitat restoration. The removal of these four dams on the Klamath River will open up fish passage to over 400 miles of historic spawning habitat, allowing the salmon and steelhead to return home!
Read more about the Klamath dams and the long battle for their removal in the Winter 2015 issue of The Current.