Invasive Mussels Found in Montana

The Clearwater Resource Council received notice that the larval form of the invasive mussels commonly known as zebra or quagga mussels have been positively identified in water samples from the Tiber Reservoir, east of the divide. Water samples from Canyon Ferry are giving inconclusive results.

Until this finding, Montana was one of only five mussel-free states west of the Mississippi; the other states being Washington, Oregon, Idaho and Wyoming.

The rapid response plan has been put in motion to assess the extent of the infestation and to determine the best course of action for eradication or c...