Mother–Offspring Isotope Fractionation in Two Species of Placentatrophic Sharks
Journal of Fish Biology
Elasmobranch, Isotopic variability, Maternal influence, Maternal provisioning
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 δ15N compared to their mothers (0·82 and 0·88‰, respectively), but fractionation of δ13C varied. Embryonic S. lewini were enriched (1·00‰) in δ13C while C. limbatuswere depleted (0·27‰) relative to their mothers.
Jeremy Vaudo, P. Matich, and Michael Heithaus. 2010. Mother–Offspring Isotope Fractionation in Two Species of Placentatrophic Sharks .Journal of Fish Biology , (7) : 1724 -1727. https://nsuworks.nova.edu/occ_facarticles/857.