U.S. and Canadian biologists have been working for decades to help lake sturgeon recover from the effects of overfishing, pollution, and habitat loss. The change takes time, though. These fish live about 100 years and females aren't sexually mature until they're 26.

A new treatment that was intended to kill zebra mussels in two Minnesota lakes was not successful. The Minnesota Department of Natural Resources used copper sulfate, a chemical used to treat swimmer's itch, to get rid of the invasive species in Lake Irene in Douglas County and Rose Lake in Otter Tail County.

Rep. Chip Cravaack announced Saturday that he will seek to end federal authority over some outdoors activities on Mille Lacs Lake. Specifically, he's referring to Coast Guard regulations requiring a so-called “six-pack” license for fishing guides or anyone operating a boat for hire with up to six passengers.

The DNR says the walleye population has reached its second-lowest level since the agency started taking the measurements in 1983. Over the long-term, male walleye have been declining on Lake Mille Lacs. Northern pike numbers are also falling.

A ten-year project led by the U.S. Energy Department will study the effects of artificially warming a peat bog near Grand Rapids. Researchers will see how the ecosystem responds to temperatures up to fifteen degrees warmer than normal.

State officials will take the rare step of using a pesticide to try and curtail a zebra mussel infestation in a western Minnesota lake. The Pioneer Press says the chemical might be effective if the mussels haven't spread from a contained area. Local officials, though, say the DNR is not responding effectively to stop the destructive mollusks.

The initial investigation by the Wisconsin DNR shows that one member of a hunting party was shooting at a deer, when another person in the group was shot.