The pandemic that closed the U.S./Canadian border to people may have opened it to the invasive sea lamprey

Great Lakes invasive species cling to shipments and navigate canals to migrate, but one aquatic invader – sea lamprey – benefitted from border closures instead. During 2020, 93 Great Lakes tributaries and 11 standing bodies of water were scheduled for chemical treatments for lamprey, but only 26 tributaries and six standing bodies of water were completed.

Streamside incubator could help restore grayling to Michigan

A new project hopes to find the best design for an incubator to produce the fish that hasn’t been in Michigan waters since 1936. It is part of a multi-step effort by the Michigan Arctic Grayling Initiative, a collaboration of more than 40 partners to make the fish self-sustaining in the Great Lakes.

Rapids return means fish returns

Restoring one of the rapids on the St. Marys River is helping diverse fish species recover in the river that connects lakes Superior and Huron, according to a recent study.

Bigheaded carp pose big threat, new model suggests

Bigheaded carp are a big threat to yellow perch, according to a new model that forecasts what would happen over the next several decades if bighead and silver carp made it into Lake Huron’s Saginaw Bay.