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VIRUS KILLING GREAT LAKES GIANTS
Fishing guide Rich Clarke of Clayton, NY, is famous for muskie hunts. He's worried so many adult muskies are falling victim to VHS. (Photo courtesy of Rich Clarke)
Fall is when avid anglers flock to the Great Lakes for one of the most challenging freshwater catches: the muskellunge, or muskie. Some call it "the fish of 10,000 casts." This year's muskie season is clouded by bad news of a new fish disease and invasive species crowding muskie habitat. David Sommerstein reports scientists are watching this top-of-the-food-chain species carefully:
Learn about invasive species in the Great Lakes region
Producer: David Sommerstein
Release Date: October 8, 2007
Running Time: 4:00