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This chart shows the maximum daily water temperatures along the SF Salmon during the summer of 2000. Notice that water temperature increased the further downriver it was recorded. The data lapse for Blind Horse Creek was caused by the Hobotemp being pulled from the river and left on the bank. The temperature spike preceding was probably caused by the monitor being pulled from and then returned to the water. In all locations except for Blind Horse, water temperatures were in the range stressful to Salmonids during the heat of summer. Data for this chart was derived from automated temperature sensors called Hobotemps, which were anchored in flowing water in the shade. Hobotemps were monitored by students at Forks of Salmon School, community volunteers and paid staff of the Salmon River Restoration Council.


  Click on image to enlarge (102K).

This chart shows the maximum daily water temperatures along the Mainstem Salmon during the summer of 2001. Notice that water temperatures are fairly uniform at all sites. In all locations water temperatures were in the range stressful to Salmonids from July through mid September. Data for this chart was derived from automated temperature sensors called Hobotemps, which were anchored in flowing water in the shade. Hobotemps were monitored by students at Forks of Salmon School, community volunteers and paid staff of the Salmon River Restoration Council.