fish

Looking much like a roly-poly, a unique species of marine isopod is known to parasitize eight species of fish. And while it is not uncommon for fish to have parasites, this species is the only known pest to replace a host’s organ. Which organ, you might ask? We present, the tongue-eating louse.

Yellowstone National Park will see its first park-wide fishing closure on all rivers and streams since 2007. The closure will prohibit fishing from 2 p.m. to sunrise the following day.

A federal magistrate judge in Montana has dismissed a lawsuit against the U.S. Bureau of Reclamation that alleged an irrigation project in northwest Montana harms threatened bull trout.

The University of Montana’s Flathead Lake Biological Station will study how tribal efforts to suppress non-native lake trout populations are possibly…

The state started new work this week to prevent toxic metals in century-old mine waste from seeping into the Upper Clark Fork River. On a warm August…

Yellowstone National Park says it’s making progress reducing the number of non-native lake trout. Park and contract crews caught and killed over 280,000...

University of Montana ecologists are researching human-made beaver dams as a potential habitat restoration tool. Early case studies show the dams could…

Three environmental groups are suing the U.S. Fish and Wildlife Service over its recovery plan for bull trout, which are listed as threatened under the…

The Montana Fish and Wildlife Commission approved an emergency order Thursday requiring anglers in Upper, Middle and Lower Thompson lakes to kill any…

Two nonnative walleyes were detected during a routine fishery survey west of Kalispell last week. The species could prove detrimental for a number of…