Stream temperature monitoring


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Trout prefer cold water, often less than 65°F, and stream temperature has a strong influence on their well-being. TU restoration projects often target improving stream temperatures, and keeping a record of temperature variability and trends can be an important tool to help confirm the success of these efforts or identify where further work is needed. Waterproof data logging thermometers offer a simple, affordable means to fill this need.

There are several resources available to help get you started with stream temperature monitoring:

A gentle introduction

More detailed protocols

Other web-based resources

TU web-based mapping tools

Provide reference information – particularly trout and salmon distribution and existing monitoring locations – to help plan where to monitor:

Existing monitoring locations compiled by federal agencies

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Every dollar donated by December 31 will be doubled and you’ll get a great gift! Give to the Member Match Challenge and help reach our goal of turning $500,000 into $1,000,000.

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Get fly patterns, fishing tips and conservation news in your inbox weekly.