Use of isotopic analysis of vertebrae in reconstructing ontogenetic feeding ecology in white sharks.

@article{Estrada2006UseOI,
  title={Use of isotopic analysis of vertebrae in reconstructing ontogenetic feeding ecology in white sharks.},
  author={James A Estrada and Aaron N Rice and Lisa J. Natanson and Gregory B. Skomal},
  journal={Ecology},
  year={2006},
  volume={87 4},
  pages={829-34}
}
We conducted stable 13C and 15N analysis on white shark vertebrae and demonstrated that incremental analysis of isotopes along the radius of a vertebral centrum produces a chronological record of dietary information, allowing for reconstruction of an individual's trophic history. Isotopic data showed significant enrichments in 15N with increasing sampling distance from the centrum center, indicating a correlation between body size and trophic level. Additionally, isotopic values verified two… CONTINUE READING