Idaho’s invasive quagga mussel population is ‘very small,’ state director says

Idaho State Department of Agriculture Director Chanel Tewalt told a committee of state legislators Tuesday that she believes Idaho’s population of invasive quagga mussels is very small and confined to limited sections of the Snake River. In September 2023, state officials used water sampling to confirm the presence of quagga mussel larvae for the f

By: Clark Corbin

Outlets: Idaho Capital Sun

Published: October 15, 2026

Words: 470

Last Updated: 2 days, 18 hours ago

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Idaho State Department of Agriculture Director Chanel Tewalt told a committee of state legislators Tuesday that she believes Idaho’s population of invasive quagga mussels is very small and confined to limited sections of the Snake River.

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In September 2023, state officials used water sampling to confirm the presence of quagga mussel larvae for the first time in state history.

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