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Last modified
8/11/2009 11:32:56 AM
Creation date
8/10/2009 3:49:54 PM
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UCREFRP
UCREFRP Catalog Number
7634
Author
U.S. Fish and Wildlife Service.
Title
Threatened Wildlife of the United States.
USFW Year
1973.
USFW - Doc Type
Washington, D.C.
Copyright Material
NO
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SHORTNOSE STURGEON Acipenser brevirostrum (Lesueur, 1818) <br />Order: ACIPENSERIFORMES Family: ACIPENSERIDAE <br />Distinguishing characteristics: A small species of sturgeon (seldom exceeding three <br />feet in length) , mouth wide (its width over 62 percent of interorbital width) , viscera <br />blackish, adults with short snout, scutes prominent, one row of preanal scutes. <br />Present distribution: All recent U . S . records are from the Hudson River except one <br />Florida specimen . <br />Former distribution: Atlantic seaboard rivers from New Brunswick to Florida, including <br />the Hudson, Delaware, Potomac, Connecticut, Salmon Creek (North Carolina) and St. Johns <br />River watershed (Florida) . There have been a few records in salt water (New Jersey) . <br />Status: In peril. The species is gone in most of the rivers of its former range. Is <br />probably not as yet extinct. <br />Estimated numbers: There are no recent records . <br />Fecundity: The spawning habits have not been well studied. In the Hudson River <br />spawning fish have been taken in late April. <br />Reasons for decline: Pollution is probably the major factor. Overfishing has also <br />been likely since this species has been intensively fished on spawning areas , also <br />has been taken in shad gill nets over a wide area of the Hudson and other rivers . <br />Protective measures already taken: Other than some routine regulations such as <br />20-inch size limit, no protective measures seem to have been taken. <br />Measures proposed: A survey of the current status of the species would be basic to <br />the development of a plan. Locating the spawning areas would be a key point to the <br />development of effective protection. <br />Number in captivity: No data, probably none . <br />Culture potential in captivity: Probably not possible to culture in captivity. It might <br />be possible to propagate from fertilized eggs obtained from wild specimens . <br />Remarks: Data submitted by the New York Conservation Department, Division of Fish <br />and Game. <br />References: <br />Jordan, D . S . and B . W . Evermann . 1902. American food and game fish . <br />Doubleday, Page & Co . , N. Y . , 572 . <br />Vladykov, V . D . and J . R . Greeley . Order Acipenseroidei in fishes of the <br />western north Atlantic, Memoir Sears Foundation for Marine- Research I(3), <br />1963:24-60. <br />
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