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Toppenish steelhead out-migration timing in 2008
Notes:
One pattern that we’ve seen in Toppenish and other tribs to a lesser extent is a lag time between peak smolt captures in Nov-Jan and Steelhead juvenile PIT tag detections at the Prosser facility.
Smolts appear to spend a significant amount of time in either the lower part of tributaries or the Yakima above Prosser at RM 47