Science activity
Science activity #49866, updated 29 April 2022

Impact of Temperature and Contaminants on Chinook Salmon Survival: A Multi-Stressor Approach

Description / purpose

The decline of native salmon species has resulted in their protection under the U.S. Endangered Species Act and the California Endangered Species Act. Disease and predation are primary drivers of mortality as salmon migrate. Multiple stressors, such as exposure to contaminants and elevated temperature, can impact rates of disease and predation of salmon as they migrate to the ocean. This study examines how contaminant exposures at different temperatures affects salmon health. Specifically, the study investigates the sensitivity of salmon to a contaminant mixture of bifenthrin (a pyrethoid pesticide) and triclosan (an antibacterial added to personal care products). Both contaminants can alter fish swimming behavior and critical physiological functions. Similarly, temperature stress can impact fish physiology and behavior, as well as exacerbate the adverse effects of contaminants.

Linked science activities

None specified

Activity status

  • Awarded / Initiating (2019)
  • In progress / Ongoing (2019 - 2023)
  • Complete

Funding summary

Total allocated funding: $478,048

Label Value
Contract # or labor code 18214
Implementing organization National Marine Fisheries Service [NMFS]
Funding organization U.S. Bureau of Reclamation [USBR]
Funding Source Not provided
Date of award 2019-06-30
Date of fiscal year-end Not provided
Total award amount $478,048
State type of obligation Not provided
Federal type of obligation Not provided
Reimbursability Not provided
Procurement mechanism Contracted competitive or direct award


Delta regions

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Products and outputs

Type Title Products Description Impact
Link Impact of Temperature and Contaminants on Chinook Salmon Survival: A Multi-Stressor Approach screenshot of a web-based summary of the project 0 views

Type and context

Science action area
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Management actions
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Science Topics
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Lead implementing organization
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None specified