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Caption: This Chart shows the floating weekly average water temperatures at lower Clear Creek (site 59) for the years 1997-1998 and 2000-2002. Maximum floating weekly average water temperature (MWAT) exceeded 16.8°C in all 5 years. Welsh et al. (2001) found that coho are not likely to persist where MWAT exceeds 16.8°C. Temperature data comes from automated water temperature data probes placed in the Klamath River and its tributaries by the Klamath National Forest and the Karuk Tribe. See Info Links for more information.
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