Archives : Tumalo Creek

Some like it hot – but not fish

September 6th, 2015

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July was hot; the hottest month on record according to the National Oceanic and Atmospheric Administration (NOAA). Combine that with an unusually warm winter, dismally low snowpack and drought declaration in 90% of Oregon and you get some pretty unhappy conditions for fish and other river dwellers.

Native fish such as trout and salmon thrive in river temperatures below 60°F, but as water warms and oxygen levels decrease, fish become stressed. An increase to 68°F and above can turn a river lethal for most native fish.

Sadly, thousands of fish died around Oregon this summer as a result of the low flows, warm water and increased levels of temperature related diseases. We hope the weather conditions we experienced this summer will give way to more normal patterns, but we do have to acknowledge the likelihood of more droughts in the future.

The good news is that here in the Deschutes Basin, many of our streams are spring fed and don’t tend to get as warm as other streams in Oregon. While flows in the Deschutes River below Bend can approach unhealthy temperatures, colder snow-melt tributaries such as Tumalo and Whychus Creeks help cool flows and preserve a healthier habitat.

With our partners, we are now underway with the Upper Deschutes Basin Study which will design the next generation of water management projects to restore flows in the Deschutes River help modernize century old water management practices that are no longer sustainable for today’s diverse needs.

We all have an interest in maintaining healthy rivers. We are all working together to create a sustainable water plan in the Deschutes Basin for tomorrow and for generations to come. Support this important process by getting informed and sharing information with others.

Read more at www.deschutesriver.org.