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Chinook Salmon swimming in swim flume

Detailed Description

Chinook salmon orient into the water current of the swim flume during a performance trial. The flume provides control over current speed, which is increased at specific time intervals while fish are monitored over a period of 1-2 hours.  Swim performance is determined by speed of current and total duration that each fish swims prior to exhaustion (when fish ceases swimming). Appropriate current speeds are calculated using the average body length of fish.


Public Domain.