Fish Disease Dynamics in the Klamath River 2013

Salmonid Research, Monitoring, and Evaluation (RM&E)

Project IDYurok-2012-1
Recovery DomainsN Central California Coast
Start Date03/01/2013
End Date08/31/2014
Last Edited05/08/2024
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Project involved sampling substrate from the Klamath River via suction dredge technology and then sorting samples for the polychaete worm host of Ceratomyxa shasta which is a deadly parasite that affects salmon in the Klamath River. Samples were collected once per month and then submitted to Oregon State University for qPCR DNA testing to determine what percentage of the polychaete worms were positive for the presence of C shasta DNA. Samples have been collected, and DNA results are still being analyzed. All field work has been completed for this project.

Project Benefit    

Understanding the life history and geographic distribution of important fish diseases in the Klamath River Basin, is a crucial first step toward devising management stratgies to reduce the impacts of these devastating diseases. Reduction of impacts of disease would fulfill many of the goals and objectives of the PCSRF including improving the status of ESA-listed coho salmon and ensuring the overall sustainability of naturally-spawning Pacific salmon and steelhead.

Objectives are to determine the fish disease dynamics, including possible causative and contributing factors, in the mainstem Klamath River over a 12 month period to help monitor the efficacy of management action to reduce the disease infectivity of salmonids the Klamath River.


Metric Completed Originally

Funding Details

Report Total:$35,000

Project Map



  • Worksite Identifier: 2012-1
  • Start Date:
  • End Date:
Area Description
Klamath Basin

Location Information

  • Basin: Northern California Coastal (180101)
  • Subbasin:
  • Watershed: Redwood Creek
  • Subwatershed:
  • State: California
  • Recovery Domain: N Central California Coast
  • Latitude: 41.2821821555635
  • Longitude: -124.0429687499969


    No ESU data was found for this worksite.




  • E.0 Salmonid Research, Monitoring, and Evaluation (RM&E)Y (Y/N)
    •      . . E.0.a RM&E Funding 35,000.00
    •      . . E.0.b
      Complement habitat restoration project
    •      . . E.0.c
      Project identified in a plan or watershed assessment.
    •      . . E.0.d.1 Number of Cooperating Organizations 1
    •      . . E.0.d.2
      Name Of Cooperating Organizations.
      Karuk Tribe
    •      . . E.0.e.1 Number of reports prepared 0
    •      . . E.0.e.2
      Name Of Report
    •      . . E.2 ResearchY (Y/N)
      •      . . . . E.2.a Research Funding 35,000.00
      •      . . . . E.2.b.7 Investigating fish health and/or disease/parasitesY (Y/N)
        •      . . . . . . E.2.b.7.a
          Key issues addressed by fish health and/or disease/parasites research
          Project will be used to develop a baseline of food resources available in the Klamath River prior to dam removal. Will also be used to identify periods when food resources may be limited, provide data for bioenergetic modeling of salmonid growth.