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How did sea lamprey get to the great lakes?

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How did sea lamprey get to the great lakes?

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Sea lampreys entered the Great Lakes system in the 1800s through man-made locks and shipping canals.

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It’s estimated that a single lamprey can destroy an average of 39 pounds of fish in its lifetime,with only about one in seven fish surviving a lamprey attack.

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What fish does it eat in the great lakes?

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What fish does it eat in the great lakes?

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Sea lampreys prey on most species of large Great lake fish,such as lake trout, brown trout, lake sturgeon, lake whitefish, ciscoes, burbot, walleye, catfish, and Pacific salmon ,including Chinook and coho salmon and  Also,rainbow trout/Steelhead.

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A sea lamprey resembles a eel, they are not related though. They have a very  unique mouth: a large oral sucking disk filled with sharp, horn-shaped teeth, and the teeth are razor sharp.

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Sea lampreys attach to fish with their suction cup mouth, then dig their teeth into flesh for grip. Once securely attached, sea lampreys rasp through the fish’s scales and skin with their sharp tongue. Sea lampreys feed on the fish’s body fluids by secreting an enzyme that prevents blood from clotting.

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http://www.glfc.org/sea-lamprey.php

http://web.b.ebscohost.com/ehost/pdfviewer/pdfviewer?vid=8&sid=921bf082-b06e-43ed-a37f-803674ee79b1%40pdc-v-sessmgr03

http://seagrant.wisc.edu/Home/Topics/InvasiveSpecies/InvasiveSpeciesFactSheets/Details.aspx?PostID=1079

http://ijc.org/greatlakesconnection/en/2017/06/sea-lamprey-greatest-invasive-control-success-story/

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Sea lampreys are native to the Atlantic ocean.

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Sea lampreys are parasitic fish native to the Atlantic Ocean.Sea Lampreys are members of a family of ancient fishes that were around before the time of the dinosaurs.