Title

Mother–Offspring Isotope Fractionation in Two Species of Placentatrophic Sharks

Document Type

Article

Publication Date

11-2010

Publication Title

Journal of Fish Biology

Keywords

Elasmobranch, Isotopic variability, Maternal influence, Maternal provisioning

ISSN

0022-1112

Volume

77

Issue/No.

7

First Page

1724

Last Page

1727

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 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.

Comments

©2010 The Authors

Additional Comments

NSF grant #s: DBI-0620409, DEB-9910514

DOI

10.1111/j.1095-8649.2010.02813.x

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Peer Reviewed

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