Roundup Record Tribune & Winnett Times -

Since New Zealand mudsnails were detected at Montana Fish, Wildlife & Parks’ Bluewater Fish Hatchery Tuesday, Aug. 18, the department continues to look at whether infected fish were stocked at lakes or reservoirs and what led to the infestation.

The Bluewater Fish Hatchery, located near Bridger in southcentral Montana, is a trout hatchery and is the third largest production facility in the state. This is the first time New Zealand Mudnsails (NZM) have been found at an FWP hatchery.

The likely cause of the infestation is a drainpipe from the hatchery that drains into neighboring Bluewater...