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Lake Trout Make Comeback in the Great Lakes

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Lake Trout Make Comeback in the Great Lakes

According to michiganradio.com, lake trout are rapidly regaining ground after decades of parasitism by sea lampreys and complications with alewives.
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The recovery of lake trout in Lake Huron means that very soon, wildlife officials will no longer have to stock the species in the lake. According to michiganradio.com, lake trout are rapidly regaining ground after decades of parasitism by sea lampreys and complications with alewives.

“I felt we were so completely stymied by one thing after another after another. The litany of challenges working against the reestablishment of a self-sustaining lake trout population seemed insurmountable,” said Jim Johnson, a researcher with the Michigan Department of Natural Resources. “But then, with the collapse of alewives, everything changed.”

The lake trout is the largest trout native to the Great Lakes and was at one time economically vital to the area’s commercial and sport fishing industries. That era of prosperity for the species was interrupted when sea lampreys devastated the trout population from 1935 to 1965. Lampreys, sometimes referred to as “lamprey eels,” feed by hooking onto fish and consuming their blood. They are considered an invasive species and became a major problem after waterway construction in the early 20th century allowed them to enter many rivers and streams.

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