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Yellow Perch
Identifying characteristics: (Native Fish) Two dorsal fins
separated into a spiny and soft-rayed portion, yellow sides, seven blackish
bars on the sides, no canine teeth.
The yellow perch and walleye, members of the Percidae or perch family, are
characterized by a dorsal fin, which is completely divided into a spiny and
a separate soft-rayed portion. Both are important game fish in the Great Lakes
area.
Yellow perch have the distinction of being the most frequently caught game
fish in Michigan. In addition their reputation as a tasty treat makes them
a doubly valuable Great Lakes product. The gregarious perch travel in schools,
generally preferring relatively shallow waters near shore. They are rarely
taken from waters more than 30 feet deep, although in spring and fall they
inhabit shallower areas than they do in the heat of the summer, they tend
to travel shoreward each morning and evening to feed, while during the spring
and fall they appear to feed throughout the day. At night they appear to rest
on the bottom and refrain from feeding. Unlike many Great Lakes fish species,
perch remain active all winter long under the ice in both shallow and deeper
water, hence they provide the ice fisherman with much sport and many a meal.
When given the choice, perch prefer a water temperature of 66-70 degrees F
and some suggest they follow the 68 degree F water temperature levels in their
seasonal movements. They inhabit all the Great Lakes, with greatest Michigan
concentrations in Lake Erie, Lake St. Clair, Saginaw Bay, the eastern end
of the U.P. and southern Michigan.
Perch average adult length is 4-10 inches, with a weight of 4-10 ounces, although
adult size is quite variable. Perch are prolific breeders, but growth and
ultimate size depend on population density and habitat productivity. Crowding
results in stunted offspring that may never exceed a length of six inches;
thus, a controlled harvest program can benefit both the angler and the fish
themselves.