The Idaho State Department of Agriculture is the lead agency for the the Snake River Quagga Mussel response. Learn more at their website.
Quagga Detection on Snake River
Resource
Emergency closure along portion of Snake River amended, effective December 18, 2023
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For details surrounding impacted changes to hunting, fishing, and trapping seasons and rules, please review the following press releases.
Fish and Game to monitor impacts to fisheries from quagga mussel treatment
Using experience gained from the 2023 treatment, Fish and Game fisheries biologists are preparing for additional fish mortality throughout the treatment area, especially in the section of river upstream of the Twin Falls power plant that was not treated in 2023.
Fish and Game amends hunting, fishing and trapping closure in the Snake River previously closed due to presence of quagga mussel larvae
Idaho Fish and Game has lifted the hunting, fishing and trapping closures in the previously closed reach of the Snake River upstream of “broken bridge” (Yingst Grade) to Pillar Falls. The closure was in response to the detection and treatment of the Snake River for quagga mussels and larvae earlier this year.
On Monday December 18, 2023, the Idaho State Department of Agriculture (ISDA) lifted their river closure in the same area under strict decontamination rules, which all river users must abide by.
Fish and Game completes fish surveys following quagga mussel treatment
Quagga mussels, an invasive species capable of causing harm to waterways, fish populations and fisheries, were found in the Snake River near Twin Falls by the Idaho Department of Agriculture in September 2023. Immediately afterwards, Idaho Fish and Game assisted the Department of Agriculture in their evaluation of potential treatments to eliminate the mussels, and Idaho Fish and Game quantified the fish populations found in the six-mile stretch of river where the mussels were found, and where the treatment would occur.
