Abstract. Procedures are presented for evaluating temperature regimes for fish. Although examples pertain to spring chinook salmon (Oncorhynchus tshawytscha), the principles apply to other species. Basic temperature tolerance relationships for fish are explained and three options are described for comparing alternative temperature regimes. The options are to base comparisons on experimental temperature tolerance results, suitability of a simulated temperature regime for key life stages, or population statistics and predicted responses to simulated temperatures.
Key words: Chinook salmon, water temperature, alternative temperature regimes.
"December 1991."; "Instream flow information paper 27"--Cover
"December 1991."; "Instream flow information paper 27"--Cover