. American fishes : a popular treatise upon the game and food fishes of North America with especial reference to habits and methods of capture. Fishes -- North America. i6 AMERICAN FISHES. other locations the bass easily drives the wall-eye from his feeding ;. THE ZANDER. S. They feed upon every kind of small fish, and do not even spare their own offspring. In the sea-going rivers of Germany they prey largely upon the smelt, and in our own waters upon the various small cyprinoids. Insects, larvae, crawfish and worms are also devoured in great numbers, and even irogs a
. American fishes : a popular treatise upon the game and food fishes of North America with especial reference to habits and methods of capture. Fishes -- North America. i6 AMERICAN FISHES. other locations the bass easily drives the wall-eye from his feeding ;. THE ZANDER. S. They feed upon every kind of small fish, and do not even spare their own offspring. In the sea-going rivers of Germany they prey largely upon the smelt, and in our own waters upon the various small cyprinoids. Insects, larvae, crawfish and worms are also devoured in great numbers, and even irogs and snakes. Their eggs are from i to i}4 millimeters in diameter, and light golden yellow in color, and are adhesive like those of the sea-herring, clinging to stones, roots and the stalks of water plants where they are deposited at a depth of from three to ten feet. They begin to spawn when less than a pound in weight, and each female deposits from two to three hundred thousand ova. This great fertility is serviceable, for no fresh water species is more subject to the fatalities incident to the spawning season. After storms the shores of lakes are said to be often bordered by windrows of the stranded ova of the Pike-Perch. Dr. Estes well describes the destructive inroads ot sturgeon, cat-fish and suckers upon the spawning beds in Lake Pepin. He estimates that not one-fourth of the eggs remain to be hatched. Wenzel Horack, who has studied the habits of the Zander in Southern Bohemia, finds that the time of spawning is so intimately connected with the temperature of the water and the air that it sometimes begins in March, though it usually occurs in April and May ; the season of oviposition con- tinues through the summer and into October. In the north of Germany the Zander spawns in May and June ; in southern Germany earlier, begin- ing in April, Eckstrom states that in Sweden they spawn only at night. The fullest description of the breeding of the American species is that by. Pl
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