Mother-offspring isotope fractionation in two species of placentatrophic sharks.

Authors :: Vaudo JJ
Matich P
Heithaus MR
Source :: Journal of fish biology [J Fish Biol] 2010 Nov; Vol. 77 (7), pp. 1724-7. Date of Electronic Publication: 2010 Oct 21.
Publication Year :: 2010
Abstract: Stable-isotope values of a scalloped hammerhead Sphyrna lewini and blacktip shark Carcharhinus limbatus and their respective embryos were analysed. Embryos of both species were enriched in δ(15) N compared to their mothers (0·82 and 0·88‰, respectively), but fractionation of δ(13) C varied. Embryonic S. lewini were enriched (1·00‰) in δ(13) C while C. limbatus were depleted (0·27‰) relative to their mothers.<br /> (© 2010 The Authors. Journal of Fish Biology © 2010 The Fisheries Society of the British Isles.)

Subjects :: Animals
Carbon Isotopes analysis
Embryo, Nonmammalian chemistry
Female
Nitrogen Isotopes analysis
Sharks metabolism
Carbon Isotopes metabolism
Nitrogen Isotopes metabolism
Sharks physiology

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