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Estimation of Mid-Columbia Summer Chinook Salmon Escapement and Age Composition Using PIT Tags in 2007

Abstract

Mark-recapture techniques were used to estimate summer Chinook salmon abundance at upstream dams. These techniques estimated from 21.9% less to 6.5% more fish at McNary and mid-Columbia dams than visual fish counts from mainstem dam fish ladders.

Authors

Citation

Fryer, J.K. 2008. Estimation of Mid-Columbia Summer Chinook Salmon Escapement and Age Composition using PIT Tags in 2007. Columbia River Inter-Tribal Fish Commission Report reference #08-01, Portland, Oregon.

Date

2008/01/15

Report No.

08-01

Media Type

CRITFC Technical Report