Evidence for dietary time series in layers of cetacean skin using stable carbon and nitrogen isotope ratios

Rapid Communications in Mass Spectrometry : RCM
Lauren A WildJanice M Straley

Abstract

Stable isotope analysis integrates diet information over a time period specific to the type of tissue sampled. For metabolically active skin of free-ranging cetaceans, cells are generated at the basal layer of the skin and migrate outward until they eventually slough off, suggesting potential for a dietary time series. Skin samples from cetaceans were analyzed using continuous-flow elemental analyzer isotope ratio mass spectrometry. We used ANOVAs to compare the variability of δ13 C and δ15 N values within and among layers and columns ("cores") of the skin of a fin, humpback, and sperm whale. We then used mixed-effects models to analyze isotopic variability among layers of 28 sperm whale skin samples, over the course of a season and among years. We found layer to be a significant predictor of δ13 C values in the sperm whale's skin, and δ15 N values in the humpback whale's skin. There was no evidence for significant differences in δ15 N or δ13 C values among cores for any species. Mixed-effects models selected layer and day of the year as significant predictors of δ13 C and δ15 N values in sperm whale skin across individuals sampled during the summer months in the Gulf of Alaska. These results suggest that skin samples from ceta...Continue Reading

References

Jul 1, 1985·The Journal of Investigative Dermatology·B D HicksW R Brown
Sep 1, 1966·Canadian Journal of Biochemistry·O H GaeblerR Vukmirovich
Sep 1, 1967·The Anatomical Record·L Giacometti
Mar 5, 2003·Proceedings. Biological Sciences·L E Rendell, H Whitehead
Sep 1, 1953·Archives of Biochemistry and Biophysics·J M REINER
Jan 24, 2006·Rapid Communications in Mass Spectrometry : RCM·C J SweetingS Jennings
May 23, 2007·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Desray ReebSusan Hillary Kidson
May 29, 2007·Proceedings of the National Academy of Sciences of the United States of America·Seth D NewsomePaul L Koch
Jan 29, 2011·The Journal of Experimental Biology·Stéphane CautKrishna Das
Jun 14, 2012·Rapid Communications in Mass Spectrometry : RCM·A BorrellA Aguilar
Sep 28, 2013·The Journal of Experimental Biology·Nicole E BrowningGraham A J Worthy
Dec 9, 2014·The Journal of Animal Ecology·Stephen M Thomas, Thomas W Crowther
Jan 31, 2015·PloS One·M Jake Vander ZandenBrian C Weidel
Jul 13, 2017·Rapid Communications in Mass Spectrometry : RCM·Marina ArreguiAsunción Borrell

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Citations

Apr 12, 2019·Scientific Reports·Casey T ClarkNicole Misarti
May 12, 2021·Royal Society Open Science·Marie LouisEline D Lorenzen

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