The pike-perch frequents waters of good depth, only entering the shallow portions of streams and lakes at spawning time, and at night when feeding. It prefers a bottom of rock or gravel in clear and cool water, and loves to lie in the deep pools at the foot of riffles, or at the entrance of streams; or where the current is strong and deep near mill-dams and under sunken logs, or shelving rocks and banks, and about the timbers of bridges in deep water. It is nocturnal in its habits, for which it is well fitted by its large and prominent eye, and seeks its prey, which consists mostly of small fishes, in shallow water. It spawns in the spring, and in lakes usually resorts to its spawning grounds in the winter, where it is caught through the ice in large numbers in certain localities, notably in Put-in-Bay on Lake Erie, and in Lake Pepin and other northern lakes. It spawns in sand or gravel in shallow water. Its eggs are small, twelve to an inch, and average fifty thousand to a female. After spawning it retires to deeper water, and in summer locates in the deepest pools. During the spring freshets it sometimes ascends smaller streams in its search for food. Its usual weight does not exceed three or four pounds, though it often grows much larger, from ten to twenty pounds. I have seen preserved heads of fish that must have weighed thirty or forty pounds, which had been caught in Kentucky--in Tygert Creek and Kentucky River. It is highly prized as a food-fish, its flesh being white, firm, and flaky, and of an excellent flavor. It is a commercial fish of much importance, especially on Lake Erie, from whence it is shipped in large numbers to the city markets, where it always commands a ready sale, being in great demand during the Lenten season. The pike-perch is a good game-fish, taking live bait eagerly, and rising pretty well to the fly. When hooked it is a vigorous fighter, pulling strongly and lustily. It does not exhibit much dash or take line rapidly, but swims away rather slowly, but at the same time is constantly tugging and jerking on the line in such a manner as to require careful handling with light tackle. Ordinary black-bass rods and tackle are well suited for the pike-perch up to six or eight pounds, either for bait-fishing or fly-fishing. Where they are found in considerable numbers, and especially on lakes where pickerel or pike abound, gimp snells should be used instead of gut snells to withstand their sharp teeth; otherwise the tackle may be the same as recommended for black-bass fishing. The best bait is a live minnow, though crawfish are successfully used. On lakes it should be fished for in comparatively deep water, over pebbly or rocky bottom. On streams the likely places are in deep and swift water, at the foot of rapids, or on a rocky lee shore with a brisk wind, where it congregates in search of minnows that are rendered almost helpless by the churning water.