Information from a pregnant salmon shark Lamna ditropis in the eastern North Pacific with observations on oophagous reproduction |
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Authors: | V. F. Gallucci,&dagger ,R. J. Foy,&Dagger § ,S. M. O'Brien,A. Aires-da,-Silva,H. Nesse,B. Langseth,N. Vega,I. Taylor, K. J. Goldman,¶ |
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Affiliation: | School of Aquatic and Fishery Science, University of Washington, Box 3555020, Seattle, WA 98195, U.S.A.; , School of Fisheries and Ocean Science, University of Alaska Fairbanks, 118 Trident Way, Kodiak, AK 99615-7401, U.S.A.; , Kodiak Laboratory, NOAA Fisheries, 301 Research Court, Kodiak, AK 99615, U.S.A.; and Alaska Department of Fish and Game, 3298 Douglas Place, Homer, AK 99603, U.S.A. |
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Abstract: | A pregnant salmon shark Lamna ditropis, captured in Alaska in December 2006, held two male and two female oophagous embryos (two per uterus) nourished by a single large 7·5 kg ovary. This discovery provides new data and insights into reproduction of the species and new perspective on the genus Lamna . |
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Keywords: | eastern North Pacific Lamna ditropis salmon shark |
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