File:A manual of fish-culture, based on the methods of the United States commission of fish and fisheries (1897) (14577690839).jpg

Identifier: manualoffishcult00unit (find matches)
Title: A manual of fish-culture, based on the methods of the United States commission of fish and fisheries
Year: 1897 (1890s)
Authors: United States. Bureau of Fisheries Brice, John J. (from old catalog) Moore, H. F. (Henry Frank), 1867-1948 Chamberlain, F. M. (Frederick M.)
Subjects: Fish culture Oyster culture Frogs
Publisher: Washington, Govt. print. off.
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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f thebody in swimming from an upright to a fiat position. The positionconstantly assumed by the very young fry is peculiar, the long axis ofthe body being vertical, with the head upward. This is owing to alarge oil-globule in the anterior part of the yolk-sac. The fry are quite hardy and stand transportation very well. Theyhave been kept three weeks without change of water in a bottle hang-ing in a box of running water to maintain an even temperature in thebottle. In planting the fry, which is done in one or two days afterhatching, they are put into the transportation cans commonly used forsuch purposes and taken in a boat to localities in which the brood fishare found. The cans are put overboard and sunk until the mouth issubmerged, when the contents are gently turned out. For a trip of notmore than two or three hours duration, with water temperature about38° F., from 400,000 to 500,000 fry may be safely carried in a 10-galloncan. Report U. S F C. 1897. (To face page 219.) Plate 60.
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MISCELLANEOUS MARINE FISHES. In addition to the salt-water fishes previously considered, a number ofothers have been artificially propagated by the IT. S. Fish Commission.With some of these the fish-cultural work has been rather extensive;with others7 hardly more than experimental. Among those to whichmost attention has been given are tautog, Spanish mackerel, pollock,and haddock. Others that have come in for a share of either practicalor experimental work are sea herring, scup, sea bass, squeteague,cunner, sheepshead, and several flounders. The same methods of culture mentioned hereafter in connection withtautog are applicable in general to scup, sea bass, squeteague, and otherspecies having floating eggs. THE TAUTOG. The tautog (Tautoga onitis) is a strongly marked species. It belongsto a family (Labridce, or the wrasses) characterized in part by onedorsal fin, thoracic ventral fins, double nostrils, thick lips, and strongteeth in the jaws. The tautog has an elongated body and a lar

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