. American fish-culture [microform] : embracing all the details of artificial breeding and rearing of trout, the culture of salmon, shad and other fishes. Fish culture; Fishes; Oyster-culture; Pisciculture; Poissons; Ostréiculture. no AMERICAN PISH CULTURE. H The figures on this and the opposite page exhibit the growth of the young salmon ab ovo. No. 1 is the egg; No. 2, the fish when it casts off the shell; No. 3, after the umbilical sac is absorbed; No. 4, the size when three months old; No. 5, when five months; No. 6, when ten or eleven months old; and No. 7, when it puts on the silvery ve
. American fish-culture [microform] : embracing all the details of artificial breeding and rearing of trout, the culture of salmon, shad and other fishes. Fish culture; Fishes; Oyster-culture; Pisciculture; Poissons; Ostréiculture. no AMERICAN PISH CULTURE. H The figures on this and the opposite page exhibit the growth of the young salmon ab ovo. No. 1 is the egg; No. 2, the fish when it casts off the shell; No. 3, after the umbilical sac is absorbed; No. 4, the size when three months old; No. 5, when five months; No. 6, when ten or eleven months old; and No. 7, when it puts on the silvery vesture of the smolt and is ready for its first migration to sea. Figures 5, 6 and 7 represent the growth under favor- able circumstances, and of such as go to sea the second summer, when somewhat over a year old. Experiments in Scotland and Ireland have shown that only a portion of â¦he fry become smolts the second summer, the remaining por- tion, which is about half, not arriving at that state until another year has elapsed. It was supposed at one time, by those who conducted the salmon-breeding establishment at i«. ' '*â. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Norris, Thaddeus, 1811-1877. Philadelphia : Porter & Coates; London : S. Low
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License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1860, booksubjectfishes, bookyear1868
