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The sea lamprey is an aggressive predator by nature, which gives it a competitive advantage in a lake system where it has no predators and its prey lacks defenses against it. The sea lamprey played a large role in the destruction of the Lake Superior trout population. Lamprey introduction along with poor, unsustainable fishing practices caused ...
Sea lampreys devastated the fishing industry of the Great Lakes. Within 20 years of the lamprey entering the Great Lakes, the harvesting of lake trout was reduced by 98%. Control efforts included lampricides, physical barriers, pheromone alarms and baiting, and trapping. The control has been extremely successful in reducing sea lamprey ...
Sea lamprey – fish that came through canals. Japanese stiltgrass – plant introduced in shipment packing material. Grass carp – fish introduced for aquaculture.
A major threat to the lake whitefish is an invasive parasite species, the sea lamprey. It is one of a number of species (in addition to the lake trout and lake herring) aggressively attacked by sea lamprey. In Lake Michigan the sea lamprey began to decimate indigenous fish populations in the 1930s and 1940s.
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Each larva that grows into a juvenile sea lamprey will migrate into Lake Michigan and can kill 40 pounds of fish in its 12- to 18-month feeding period.
The Sea Lamprey background had entered the Ontario Lake in the mid-1800s and in the Upper Great Lakes entered in 1921. The Sea Lamprey causes much destruction to ecosystems and other species of life, economic damage; but Sea Lamprey had a large change in life in the lakes of both Canada and United States of America. [2]
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