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Fish Physiology and Biochemistry

, Volume 37, Issue 1, pp 105–112 | Cite as

A comparison of the heart and muscle total lipid and fatty acid profiles of nine large shark species from the east coast of South Africa

  • Bruce DavidsonEmail author
  • Jonathan Sidell
  • Jeffrey Rhodes
  • Geremy Cliff
Article

Abstract

We have assessed the fatty acid profiles of the hearts and different muscle tissues from nine large shark species (Carcharhinus limbatus (blacktip), Carcharhinus obscurus (dusky), Carcharhinus brevipinna (spinner), Carcharhinus leucas (Zambezi/bull), Galeocerdo cuvier (tiger), Sphyrna lewini (scalloped hammerhead), Sphyrna zygaena (smooth hammerhead), Carcharodon carcharias (great white) and Carcharias taurus (raggedtooth/grey nurse/sand tiger)) found off the east coast of South Africa. While there was generally little variation between the species, all species showed profiles rich in both n6 and n3 polyunsaturated fatty acids compared to terrestrial commercial meats that have low n3. Thus, utilizing skeletal muscle tissues from sharks caught as part of the bycatch when fishing for teleosts would avoid unnecessary wastage of a potentially valuable resource, with all the possible health benefits of high quality protein combined with balanced polyunsaturates, although contamination with high levels of metabolic wastes, such as urea, may be a negative consideration.

Keywords

Shark Heart Muscle Fatty acids 

Notes

Acknowledgments

The authors would like to recognize the support of the KwaZulu-Natal Sharks Board operations and laboratory staff for providing the shark liver samples without which this project would have been impossible. The authors would like to thank the University of the Witwatersrand for financial and infrastructural support of this project.

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Copyright information

© Springer Science+Business Media B.V. 2010

Authors and Affiliations

  • Bruce Davidson
    • 1
    Email author
  • Jonathan Sidell
    • 1
  • Jeffrey Rhodes
    • 1
  • Geremy Cliff
    • 2
  1. 1.Saint James School of MedicineKralendijkNetherlands Antilles
  2. 2.KwaZulu-Natal Sharks Board, Umhlanga Rocks, and Biomedical Resource UnitUniversity of KwaZulu-NatalKwaZulu-NatalSouth Africa

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