There are Federal hatcheries at Swanton (for pike perch and yellow perch) and at Holden (for trout).
New York was in 1904 more extensively engaged in oyster culture than any other state, and was making more rapid progress in the cultivation of hard clams. In 1909 there were distributed from state fish hatcheries 1 531,293,721 fishes (mostly smelt, pike-perch, and winter flatfish); a large number of fish and eggs were also placed in New York waters by the United States Bureau of Fisheries.
There were eight hatcheries in 1910 and the number of fish distributed from these during 1908 was about 662,000,000; they consisted chiefly of pickerel, yellow perch, walleyed pike, white fish, herring, blue pike, trout and shad.
Smith, to occur among a breed of albino trout, which breed true and are reared in the State fish-hatcheries of America.
Of Oconomowoc) there are state fish hatcheries, the former for black bass.
Near the city is one of the five fish-hatcheries maintained by the state; it is largely devoted to the propagation of trout and other small fish.
In marine hatcheries, on the other hand, it is the invariable practice to hatch the eggs, although the fry have to be put into the sea at the most critical period of their lives.
In the case of sea-fishes it is becoming increasingly recognized that the millions of cod fry which are annually turned out of the American, Newfoundland and Norwegian hatcheries are but an insignificant fraction of the billions of fry which are naturally produced.
Yet the annual output of fry from each of these hatcheries rarely exceeds zoo millions, i.e.
In Britain marine hatcheries have been established by the Fishery Board for Scotland in the bay of Nigg, near Aberdeen, by the Lancashire Sea Fisheries Committee at Peel, and by the government of the Isle of Man at Port Erin.
Both the state government and the national government have established hatcheries within the state, and state laws protect the industry by regulating the size of mesh in the nets used, prescribing the size of fish that may be taken and kept, establishing close seasons for several kinds of fish, and by other limitations.
There are state fish-hatcheries at St Louis and St Joseph.