Effects of Jet Entry at High Flow Outfalls on Juvenile Pacific Salmon

May 1, 2003

Journal Article

Effects of Jet Entry at High Flow Outfalls on Juvenile Pacific Salmon

Abstract

We conducted field studies and laboratory experiments to document relationships between injury/mortality rates of juvenile salmon and jet entry velocities characteristic of high flow (> 28.3 m3/s) outfalls. During field tests the range of calculated mean entry velocities was 9.3-13.7 m/s for two high flow outfall discharges (28.3 and ~70.2 m3/s) and two tailwater elevations. Mortality of balloon-tagged hatchery spring chinook salmon (Oncorhynchus tshawytscha) juveniles in the field tests was

Revised: March 11, 2009 | Published: May 1, 2003

Citation

Johnson G.E., B.D. Ebberts, D.D. Dauble, A.E. Giorgi, P.G. Heisey, R.P. Mueller, and D.A. Neitzel. 2003. Effects of Jet Entry at High Flow Outfalls on Juvenile Pacific Salmon. North American Journal of Fisheries Management 23, no. 2:441-449. PNNL-SA-35569.