Locations of marine animals revealed by carbon isotopes.

Scientific Reports
Kirsteen M MacKenzieClive N Trueman

Abstract

Knowing the distribution of marine animals is central to understanding climatic and other environmental influences on population ecology. This information has proven difficult to gain through capture-based methods biased by capture location. Here we show that marine location can be inferred from animal tissues. As the carbon isotope composition of animal tissues varies with sea surface temperature, marine location can be identified by matching time series of carbon isotopes measured in tissues to sea surface temperature records. Applying this technique to populations of Atlantic salmon (Salmo salar L.) produces isotopically-derived maps of oceanic feeding grounds, consistent with the current understanding of salmon migrations, that additionally reveal geographic segregation in feeding grounds between individual philopatric populations and age-classes. Carbon isotope ratios can be used to identify the location of open ocean feeding grounds for any pelagic animals for which tissue archives and matching records of sea surface temperature are available.

References

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Citations

May 15, 2013·Proceedings of the National Academy of Sciences of the United States of America·Anne E WileyHelen F James
Mar 16, 2016·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Clive N TruemanDiana Shores
Nov 6, 2012·Rapid Communications in Mass Spectrometry : RCM·Matthieu AuthierChristophe Guinet
Jul 19, 2012·Journal of Fish Biology·C N TruemanM R Palmer
Jan 13, 2018·Ecology and Evolution·Jose L HorreoEva Garcia-Vazquez
Jul 5, 2017·Scientific Reports·Francisco RamírezSébastien Descamps
Apr 1, 2021·Rapid Communications in Mass Spectrometry : RCM·Jacob E LernerBrian P V Hunt

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Software Mentioned

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