1. By 1992, the cost of controlling the sea lamprey rose to $ 10 million a year. 2. Initial returns were poor, and would remain so until successful sea lamprey control began in 1972. 3. The lock at Rapide Croche was sealed shut to prevent sea lampreys from reaching Lake Winnebago. 4. WPTZ, Plattsburgh A String to the Ear; Sea Lamprey Control, Silent Victories; Dry Problems-- Chris Gobeille 5. The fish stocks also collapsed with the introduction of the sea lamprey into the Great Lakes. 6. The sea lamprey played a large role in the destruction of the Lake Superior lake trout population. 7. Sea lampreys are considered a lake herring.8. The decline of the species has been largely caused by overfishing and predation from the invading sea lamprey . 9. An analysis of the economic contribution of the Great Lakes Sea Lamprey Program ( vol . 2 ). 10. The USACE proposal includes barriers that are intended to restrict the movement of sea lamprey beyond the dam.
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