February 15, 2013
Report

Survival and Passage of Juvenile Chinook Salmon and Steelhead Passing through Bonneville Dam, 2011.

Abstract

Pacific Northwest National Laboratory (PNNL) and subcontractors conducted an acoustic-telemetry study of juvenile salmonid fish passage and survival at Bonneville Dam in 2011. The study was conducted to assess the readiness of the monitoring system for official compliance studies under the 2008 Biological Opinion and Fish Accords and to assess performance measures including route-specific fish passage proportions, travel times, and survival based upon a virtual/paired-release model. The study relied on releases of live Juvenile Salmon Acoustic Telemetry System tagged smolts in the Columbia River and used acoustic telemetry to evaluate the approach, passage, and survival of passing juvenile salmon using a virtual release, paired reference release survival model. This study supports the U.S. Army Corps of Engineers’ continual effort to improve conditions for juvenile anadromous fish passing through Columbia River dams.

Revised: April 27, 2015 | Published: February 15, 2013

Citation

Ploskey G.R., G. Batten, A.W. Cushing, J.A. Kim, G.E. Johnson, J.R. Skalski, and R.L. Townsend, et al. 2013. Survival and Passage of Juvenile Chinook Salmon and Steelhead Passing through Bonneville Dam, 2011. PNNL-22178 Final. Richland, WA: Pacific Northwest National Laboratory.