Monitoring the Selway Falls renovation project for passage of spring chinook salmon and steelhead

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Monitoring the Selway Falls renovation project
for passage of spring chinook salmon and
steelhead

• FY 2002-2004
• PNNL

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Problem Statement

• Passage of salmonids is currently impeded over
  Selway Falls
• Monitoring of the fish tunnel is needed to ensure
  that improvements to the fish tunnel do increase
  passage success, and the use of energy while
  passing is minimized after improvements

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Objectives

• Monitor the success of fishway improvements for
  steelhead and spring chinook salmon
• Monitor the success of fish passage before and
  after the improvement of the Selway Falls Fish
  Tunnel
• Monitor the behavior and energy use during fish
  passage before and after the improvement of the
  Selway Falls Fish Tunnel
• Provide information to fine tune the fishway and
  manage it optimally by examining swimming
  behavior within the fishway

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General Approach for monitoring the Selway Falls
renovation project

• Implant steelhead and spring chinook salmon with
  conventional and electromyogram (EMG)
  transmitters.
• Calibrate EMG tag output to swimming speed in a
  Blazka respirometer at streamside
• Use multiple antenna arrays to log output from
  EMG transmitter implanted fish as they ascend
  fish ladders and waterfalls.
• Track fish tagged with conventional tranmsitters
  to determine the success of passage.

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Expected Products

• Estimates of passage success for the Selway Falls
  fish tunnel before and after improvement
• Swimming behavior and energetic costs of tunnel
  passage before and after improvement
• Information that can be used to fine tune the
  fishway for optimal passage

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