Lake Erie, for example.
Interesting that the pike-perch is considered an invasive species here, and fishery experts in the U.S. are worried about it getting established here and wreaking havoc on the native walleye population.
A walleye is a natural cross between a pike and a perch. How is the pike-perch different?
I remember visiting Lake Erie about 40 years ago when I was young. I thought I would go swimming but one look at the water and I changed my mind quickly. Lake Erie has come a long way since. So has the Ohio river and East river.