The U.S. and Canada collectively spend tens of millions of dollars per year to fight invasive, sport fish-attacking sea lamprey in the Great Lakes, a control effort that's spanned generations. But ...

Sea lamprey numbers climbed in all Great Lakes in 2024 after treatment was limited during the COVID-19 pandemic.

Reductions and outright halts in sea lamprey control efforts during the COVID-19 pandemic caused the predatory invaders to ...

Invasive sea lampreys pose a threat to Lake Erie's fish populations, particularly lake trout and steelhead. Warmer waters in Lake Erie accelerate the lampreys' maturation, increasing their impact on ...

More than 60 years after invasive sea lamprey began decimating Lake Superior lake trout, restoration efforts have successfully returned this native freshwater fish to the lake. Both a keystone species ...

In its native Atlantic Ocean, sea lampreys are little more than an annoyance, parasites that latch on to large fish and whales but don’t kill them. In the Great Lakes, where they are relatively larger ...

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First the bad news: sea lampreys exceeded abundance targets in 2024 in all five Great Lakes. Now the silver linings: the findings weren't a surprise, the reason is well understood and the coming years ...

A new study shows that after sea lamprey control efforts were stopped or scaled back during the COVID-19 pandemic, the invasive species surged on the Great Lakes. Sea lampreys are a parasite, feeding ...

First the bad news: sea lampreys exceeded abundance targets in 2024 in all five Great Lakes. Now the silver linings: the findings weren't a surprise, the reason is well understood and the coming years ...