Zebra mussels threaten Montana's top fisheries in 2026. Here's which waters are at risk and what FWP's boat checkpoints mean for you this spring.

Illegal fish stocking is one of Montana's biggest fishery threats. Here's why dumping bait fish or "pet" fish can ruin a waterbody forever.

Montana watercraft inspection stations reopen March 7 in Dillon, Ravalli, and Anaconda as Fish, Wildlife & Parks highlights another year of keeping invasive mussels out of state waters. New AIS reports underscore strong prevention statewide—and a growing risk from boats returning from out-of-state waters.