Northwest Fisheries Science Center

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Document Type: Chapter or Section
Center: NWFSC
Document ID: 6660
Type of Book: Technical
Section or Chapter Title: Temperature holding experiment at Oxbow Dam (summary). Report No. 74
Book Title: Fish-Passage Research Program review of progress 1964, Volume V
Author: Alan B. Groves
Editor: Gerald B. Collins, Carl H. Elling (Eds.)
Publication Year: 1964
Publisher: Report of the Accelerated Fish-Passage Research Program to the U.S. Bureau of Commercial Fisheries. Seattle, Washington

Above–average losses of unspawned adult Chinook salmon at the Oxbow Dam holding pond on the Snake River have occurred coincidentally with higher water temperatures in two of the past three operating seasons.  In the season when lower water temperatures prevailed, fewer losses occurred. These events suggested that the lower temperatures benefited these fish.  In the fall of 1964 an experiment planned to investigate such benefits was attempted at the Oxbow hatchery.  Adult migrants trapped at the dam were held in water cooled by mechanical refrigeration.  The results are summarized in this report.   

Notes: Summary report--possibly to the The Bonneville Power Administration Thermal Task Force Committee. 10 pages