News
Invader Species Threaten Great Lakes Fishery
The Great Lakes region is trying to fight off aggressive non-native species, which pose a major threat to other wildlife, human health, waterways and the economy.
1
Silver carp, one of three invasive carp threatening the Great Lakes, jump out of the water due to boat motor vibrations. (T. Lawrence, Great Lakes Fishery Commission)
2
Asian carp are threatening to enter the Great Lakes basin through the Chicago and Sanitary Ship Canal - a man-made canal which links the two basins. (T. Lawrence, Great Lakes Fishery Commission)
3
Sea lampreys attach to fish with a suction cup mouth ringed with sharp teeth; they bore a hole through the fish and feed on the fish's blood and body fluids. (T. Lawrence, Great Lakes Fishery Commission)
4
Left uncontrolled, sea lampreys - seen here feeding on a trout - could cause the collapse of the Great Lakes fishery. (US Fish and Wildlife Service)