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Hypothetical Northern Spawning Limit and Larval Transport of Spot
Norcross, Brenda L. Bodolus, Deborah A.
Norcross, Brenda L.
Bodolus, Deborah A.
Abstract
The exact northern limit of the spawning grounds of spot (Leiostomus xanthurus) has not been determined. Previous reports of spot spawning during the winter/spring in the Middle Atlantic Bight (MAB) are refuted based on the presence of low bottom-water temperatures at that time. Analyses of historic bottom isotherms in the MAB during winter/spring show that the most northerly occurrence of required 17° C bottom temperatures from December to May is on the outer continental shelf off North Carolina near the Gulf Stream. It is therefore suggested that spot recruiting to Chesapeake Bay are spawned near Cape Hatteras at the shelf break in winter. (more ...)
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1991
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U.S. Department of Commerce
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Norcross_NMFS_95.pdf
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Virginia Institute of Marine Science