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Spawning ground surveys
Index of spawning escapement
Smolt Trap
Outmigration estimate
Timing and survival through the Yakima and Columbia rivers
Notes:
Two forms of monitoring to discuss
outmigration studies and spawning ground survey
Outmigration studies using smolt traps
goal is to obtain an outmigration estimate (periods of high water when trap operation isn’t possible makes difficult)
PIT tag steelhead juveniles to look at timing and survival through the Yakima and Columbia rivers
Spawning ground surveys used as an index of spawning escapment