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Caption: The minimum, average and maximum daily water temperature of the South Fork Battle Creek at the Inskip Diversion in 1997 is displayed above. Thresholds shown on the graph above are for the egg life history stage before July 1 for winter chinook, spring chinook eggs after September 15 and for holding spring chinook adults during summer (July-September). This reach would have been optimal for spring chinook holding (<61 F) and also for spring chinook spawning after September 15 (58 F). Because the South reach is at a fairly high elevation, it is expected to be optimal for spring chinook salmon and suitable for winter chinook after flows are increased for restoration.
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