Great Lakes Article:

Great Lakes watchers are taking a high-tech approach to managing fish populations by mechanically implanting tiny identification codes in the noses of fish so they can be tracked, identified and provide data in the future about the health of the waters.

An estimated 32 million trout and salmon are stocked into the Great Lakes basin each year to help sustain a $4 billion fishing industry and maintain the biodiversity of the waters.

The new AutoFish technology will mark fish that are introduced into the lakes from hatcheries, and arm officials with information about the populations in the lakes, how the fish behave and travel, and how environmental conditions are affecting different fish, said Terry Quinney, a manager with the Ontario Federation of Anglers and Hunters and the Canadian adviser to the Great Lakes Fisheries Commission.

New York state has already been using the AutoFish system for a couple weeks and it will get its official launch in Ontario today.

By day's end, an estimated 500,000 fish will be processed on the Canadian side of the border.