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Massive Declines in Crooked River Fish Populations
The 2016 Oregon Department of Fish and Wildlife annual electro shocking survey of fish populations in the upper Wild & Scenic section of the Crooked River revealed that, during the past year, the wild redband trout population suffered a catastrophic 86.4 percent reduction in numbers while the native mountain whitefish mortality was an alarming 45.3 percent.

Last year when the Crooked River watershed was included within a regional drought-declared area, Bureau of Reclamation river flow decisions drained the Prineville Reservoir to its fourth-lowest level ever.

The rapid early winter reduction in flow suddenly decreased the width of the river and resulted in a significant loss of bank habitat for the aquatic bugs fish need to eat to survive.

 
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Restoring Native Vegetation - Lake Conroe has a volatile history of aquatic vegetation management. Hydrilla infested the reservoir soon after the reservoir filled, resulting in coverage of approximately 10,000 acres by the early 1980’s. To control hydrilla, large numbers diploid grass carp were stocked. Grass carp not only controlled hydrilla, but also eliminated most other aquatic vegetation in the lake and continued to inhibit plant growth into the late 1990’s.


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