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Officials Say Sea Lamprey Numbers Down Across Great Lakes

Populations of invasive, fish-killing sea lampreys have fallen to their lowest point in decades across the Great Lakes, showing that control measures costing millions of dollars a year are paying off, officials said Wednesday. Lamprey numbers have reached a 30-year low in Lake Huron and a 20-year low in Lake Michigan, according to the Great Lakes Fishery Commission, a U.S.-Canadian organization. Numbers also are down significantly in the other lakes.

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