Apparently, several have been spotted around the Lake Erie Islands. According to Stone Laboratory, the species are native to ...

There are a half-dozen species of lampreys in Pennsylvania, but an invasive sea lamprey is impacting a variety of fish in Lake Erie.

(CNN) — Four reactors at France’s Gravelines nuclear power plant were shut down late Sunday due to a swarm of jellyfish in the cooling systems, operator EDF said on Monday, likely due to rising water ...

Dead fish are washing up along parts of Lake Erie — in some spots, by the thousands. But experts say there’s no reason to panic.  Here’s what’s really behind it: ...

More beachgoers have been getting an unexpected shock this summer as jellyfish numbers bloom along the Delaware coast.

GRAND RAPIDS, Mich. (WOOD) — An invasive freshwater jellyfish has been spotted in Lake Erie. The Pennsylvania Department of ...

A rare freshwater jellyfish was spotted last month in Lake Erie, according to Pennsylvania officials. Ray Walter, an intern ...

Craspedacusta sowerbii aren't frequently seen in their adult, "medusa" form. The invasive species likely came from Asia in ...