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Fish Behavior Monitored with HTI Acoustic Tag in the Delta

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Uploaded by on Dec 4, 2009

The California Department of Water Resources (DWR) is working to help keep juvenile Chinook salmon and steelhead on course as they migrate to the Pacific Ocean. A prototype of a non-physical barrier that is made up of lights and bubbles to help divert salmon and keep them on the path to the sea during migration is shown in red. The barrier is turned off (red) and a fish is tracked passing the barrier when it is off. The colored spheres illustrate the hydrophones listening to the tagged fish, detecting passage.

Preliminary results show the new non-physical barrier is working. How do we know this is true? By observing fish behavior in real-time using fish tagged and tracked with HTIs Model 795Lm Acoustic Tags.

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