Arcata Fisheries Technical Report TR 2014-20 Evaluation of Reductions in Sampling and Mark-Recapture Effort on the Bias and Precision of Juvenile Chinook Salmon Outmigrant Estimates on the Trinity River, California. Nicholas A. Som and William D. Pinnix U.S. Fish and Wildlife Service Arcata Fish and Wildlife Office 1655 Heindon Road Arcata, CA 95521 (707) 822-7201 July 2014 U.S. Fish & Wildlife Service