I'm dead positive that a cool-down is beneficial, maybe even required. It's the amount of cooling that I question. Our Yellow Perch are also big favourites for icefishermen; but it's easy to catch them in summer in warm, weedy bays as well.
They are, of course, separate species, even if closely related.
Our Perch are lumped into the broad and unscientific category of "warmwater" gamefish, along with their close relatives Walleye and Sauger, as well as all the Sunfish family (including the Black Basses), all the Pikes (Pike, Pickerel and Muskie), Catfish and probably others. "Coldwater" gamefish are basically Trout, Salmon and Chars; can't think of any others in that category.
I know, they aren't scientific designations, but they do more or less illustrate preferred temperature ranges.
They are, of course, separate species, even if closely related.
Our Perch are lumped into the broad and unscientific category of "warmwater" gamefish, along with their close relatives Walleye and Sauger, as well as all the Sunfish family (including the Black Basses), all the Pikes (Pike, Pickerel and Muskie), Catfish and probably others. "Coldwater" gamefish are basically Trout, Salmon and Chars; can't think of any others in that category.
I know, they aren't scientific designations, but they do more or less illustrate preferred temperature ranges.