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Caption: The Chart shows the floating weekly average water temperature in Celsius (C) in lower Sonoma Creek at the Kiser property (site 5) for 2000-2002. Maximum floating weekly average water temperatures (MWAT) exceeded 19.0°C in all three years. Based on a review of steelhead growth studies, Sullivan et al. (2000) found that compared to optimum temperatures, an MWAT of 17.0°C reduced steelhead growth by 10%, and an MWAT of 19.0°C reduced growth by 20%. See Info Links for more information. Temperature data comes from automated water temperature data probes placed in the Sonoma Creek tributaries by the Sonoma Ecology Center.
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