The Lake Erie Fish deaths were the result of some type of Hemorrhagic virus common in Alewives. It happens every so often and is well known around the great lakes.
Quite frankly anyone relying on Jesse Ventura for “truth” may as well huff gasoline fumes. After all this is a man who knows global warming is real because it gets hot in his car when he sits in traffic.
He has since denounced global warming as being nothing but a hoax and did a show on it.