Invasive sea lampreys still threaten the Great Lakes ecosystem and $5 billion fishing industry.

Barriers and lampricides are effective lamprey controls, but new supplemental controls can help fine-tune our lamprey response.

Researchers have successfully tested new control techniques like releasing sterilized males.

CHEBOYGAN, MICH — In downtown Cheboygan, Michigan, water gushes over a dam, swirls violently around a pond and flows a mile and a half out to Lake Huron. Signs warn potential swimmers of the life-threatening currents. There aren’t many clues about what swims below the surface.

Nightmare-inducing sea lampreys.

The adults look like eels, but with circles of razor-sharp teeth, ready to feed on anything they latch onto. Because of their appetites, the sea lampreys have the capa

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