Water Management Adaptations to Prevent Loss of Spring-Run Chinook Salmon in California under Climate Change

  title={Water Management Adaptations to Prevent Loss of Spring-Run Chinook Salmon in California under Climate Change},
  author={Lisa C. Thompson and Marisa I. Escobar and Christopher M. Mosser and David R. Purkey and David Yates and Peter B. Moyle},
  journal={Journal of Water Resources Planning and Management},
AbstractSpring-run Chinook salmon (Oncorhynchus tshawytscha) are particularly vulnerable to climate change because adults over-summer in freshwater streams before spawning in autumn. We examined streamflow and water temperature regimes that could lead to long-term reductions in spring-run Chinook salmon (SRCS) in a California stream and evaluated management adaptations to ameliorate these impacts. Bias-corrected and spatially downscaled climate data from six general circulation models and two… 
Targeting river operations to the critical thermal window of fish incubation: Model and case study on Sacramento River winter‐run Chinook salmon
Allocating reservoir flows to meet societal and ecosystem needs under increasing water demands and climatic variability presents challenges to resource managers. Often, rivers have been regulated to
Instream flows: New tools to quantify water quality conditions for returning adult Chinook salmon
AbstractThis paper examines the effect of implementing a water transaction program to address potential water quality limitations for returning adult fall-run Chinook salmon in a stream system where
Effects of past and projected river discharge variability on freshwater production in an anadromous fish
Knowledge about population responses to environmental variability, including extreme climatic events, is crucial for understanding their current status and likely fate under future environmental
Thermal exposure of adult Chinook salmon and steelhead: Diverse behavioral strategies in a large and warming river system
This study paired radiotelemetry with archival temperature loggers to construct continuous, spatially-explicit thermal histories for 212 adult Chinook salmon and 200 adult steelhead migrating through 470 kilometers of the Columbia and Snake rivers en route to spawning sites in Idaho, Oregon, and Washington.
Climate vulnerability assessment for Pacific salmon and steelhead in the California Current Large Marine Ecosystem
A climate vulnerability assessment that included all anadromous Pacific salmon and steelhead population units listed under the U.S. Endangered Species Act provides a framework to support recovery planning that considers climate impacts on the majority of West Coast an adromous salmonids.
Process-based model of fish incubation survival for designing reservoir operations: a case study for Sacramento River winter-run Chinook salmon
Allocating reservoir flows to meet societal and ecosystem needs under increasing demands for water and increasing climatic variability presents challenges to resource managers. Often, regulated
Using Life Cycle Models to Identify Monitoring Gaps for Central Valley Spring-Run Chinook Salmon
Life-cycle models (LCMs) provide a quantitative framework that allows evaluation of how management actions targeting specific life stages can have population-level effects on a species. LCMs are
Survival of captured and relocated adult spring-run Chinook salmon Oncorhynchus tshawytscha in a Sacramento River tributary after cessation of migration
We studied the efficacy of the process for capture and upstream relocation of 26 adult spring-run Chinook salmon in Butte Creek, California in 2009. These fish had ceased volitional upstream
Thermal exposure of adult Chinook salmon in the Willamette River basin.


We quantified distribution and behavior of adult spring chinook salmon (Oncorhynchus tshawytscha ) related to patterns of stream temperature and physical habitat at channel-unit, reach-, and
Predicting differential effects of climate change at the population level with life‐cycle models of spring Chinook salmon
Habitat conditions mediate the effects of climate, so neighboring populations with differing habitat conditions may differ in their responses to climate change. We have previously observed that
Climate impacts at multiple scales: evidence for differential population responses in juvenile Chinook salmon.
It is found that fall stream flow is the best predictor of average survival across all populations, and stream width and stream temperature are identified as key habitat factors that shape the responses of individual populations to climate.
Global climate change and potential effects on Pacific salmonids in freshwater ecosystems of southeast Alaska
General circulation models predict increases in air temperatures from 1°C to 5°C as atmospheric CO2 continues to rise during the next 100 years. Thermal regimes in freshwater ecosystems will change
Effects of climate change and wildfire on stream temperatures and salmonid thermal habitat in a mountain river network.
  • D. IsaakC. Luce G. L. Chandler
  • Environmental Science
    Ecological applications : a publication of the Ecological Society of America
  • 2010
A warming climate has begun to affect thermal conditions in streams and that impacts to biota will be specific to both species and context, suggesting conservation actions should be guided based on considerations of restoration opportunity and future climatic effects.
Effects of River Discharge, Temperature, and Future Climates on Energetics and Mortality of Adult Migrating Fraser River Sockeye Salmon
Abstract We evaluated the effects of past and future trends in temperature and discharge in the Fraser River on the migratory performance of the early Stuart population of sockeye salmon Oncorhynchus
Projected impacts of climate change on salmon habitat restoration
Model results indicate a large negative impact of climate change on freshwater salmon habitat, and salmon recovery plans that enhance lower-elevation habitats are likely to be more successful over the next 50 years than those that target the higher-Elevation basins likely to experience the greatest snow–rain transition.
Modelling climate‐change impacts on stream temperature of Formosan landlocked salmon habitat
A physics‐based model is provided for predicting the impact of climate change on stream temperature and, in turn, on Formosan landlocked salmon (Oncorhynchus masou formosanus) habitat. Because
Historical Abundance and Decline of Chinook Salmon in the Central Valley Region of California
Abstract The Central Valley drainage of California formerly produced immense numbers of chinook salmon Oncorhynchus tshawytscha. Four seasonal runs occur in this system—fall, late-fall, winter, and