Mother–Offspring Isotope Fractionation in Two Species of Placentatrophic Sharks

Authors

Jeremy Vaudo, Florida International UniversityFollow
P. Matich, Florida International University
Michael Heithaus, Florida International University

Document Type

Article

Publication Title

Journal of Fish Biology

ISSN

0022-1112

Publication Date

11-2010

Keywords

Elasmobranch, Isotopic variability, Maternal influence, Maternal provisioning

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.

DOI

10.1111/j.1095-8649.2010.02813.x

Volume

77

Issue

7

First Page

1724

Last Page

1727

Comments

©2010 The Authors

Additional Comments

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

NSUWorks Citation

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.