I spoke with Don Pereira last week, the former head of Minnesota DNR Fisheries. Pereira retired from the agency in 2018 then served as a commissioner on the Great Lakes Fishery Commission. He still chairs the group’s Sea Lamprey Control Board.
Everyone know the sea lamprey story? The blood suckers are one of the nastiest aquatic invasive species ever. They got into the upper Great Lakes in the early 20th century with the opening of the St. Lawrence Seaway and by the 1950s and ’60s had wiped out lake trout and other sport fisheries.

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