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Mother–offspring isotope fractionation in two species of placentatrophic sharks
Author(s) -
Vaudo J. J.,
Matich P.,
Heithaus M. R.
Publication year - 2010
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.2010.02813.x
Subject(s) - biology , carcharhinus , fractionation , zoology , offspring , chondrichthyes , fishery , pregnancy , genetics , chemistry , organic chemistry
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.