The Montana Fish and Wildlife Commission approved an emergency order Thursday requiring anglers in Upper, Middle and Lower Thompson lakes to kill any walleye caught in those bodies of water and turn the fish over to Montana Fish, Wildlife and Parks (FWP).
This comes just a week after FWP discovered two non-native female walleyes in Upper Thompson Lake during a routine fishery survey. The fish are thought to be illegally introduced and can severely alter ecosystems.
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