Closure will allow biologists to conduct rotenone treatment

The Division of Wildlife Resources is going to conduct a native trout restoration project in the Right Hand Fork of the Logan River.

The project, which involves removing nonnative brown trout using rotenone, will happen on Sept. 19 and Sept. 20.

In order to provide Bonneville cutthroat trout with suitable habitat, nonnative brown trout will be removed from Right Hand Fork using the chemical formulation CFT Legumine™ (5 percent rotenone). After the rotenone flows through the treatment area, DWR biologists will use potassium permanganate to decontaminate the rotenone at the downstream end of the treatment reach.

Public access to the Right Hand Fork area will be restricted during the treatment. Fishing, wading or other recreational activities will not be permitted.

Although rotenone is not harmful to humans at the levels that will be used during the treatment, the federal Food and Drug Administration has not approved fish treated with the chemical for human consumption. For this reason, fish that are killed during the project may not be salvaged.

Warning placards with information about the treatment will be posted on the Right Hand Fork Road (Forest Road 081) to inform people about the project.

Normal public use of the Right Hand Fork should resume late in the afternoon on Sept. 20.

In 2013, a second rotenone treatment will happen at the Right Hand Fork. This treatment will help ensure that all of the nonnative trout in the stream are completely removed. After the second treatment, Bonneville cutthroat trout will be stocked into the stream.

Bonneville cutthroat trout could be stocked into the stream as early as fall 2013.

For more information, call the DWR’s Northern Region office at (801) 476-2740.

Logo courtesy Utah Division of Wildlife Resources

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