Analysis of stable isotope ratios in blood of tracked wandering albatrosses fails to distinguish a δ13C gradient within their winter foraging areas in the southwest Atlantic Ocean

• Published in: Rapid Communications in Mass Spectrometry
• Main Authors: Ceia, Filipe R., Ramos, Jaime A., Phillips, Richard A., Cherel, Yves, Jones, Daniel C., Vieira, Rui P., Xavier, Jose C.
• Format: Article in Journal/Newspaper
• Language: English
• Published: Wiley 2015
• Subjects: Southern Ocean; Austral; Bird Island; South Atlantic Ocean; Wandering Albatross
• Online Access: http://nora.nerc.ac.uk/id/eprint/512251/; https://nora.nerc.ac.uk/id/eprint/512251/1/Ceia_et_al-2015-Rapid_Communications_in_Mass_Spectrometry.pdf; https://nora.nerc.ac.uk/id/eprint/512251/7/RCM-15-0290_R1.pdf; https://doi.org/10.1002/rcm.7401

Rationale The main limitation of isotopic tracking for inferring distribution is the lack of detailed reference maps of the isotopic landscape (i.e. isoscapes) in the marine environment. Here, we attempt to map the marine δ13C isoscape for the southwestern sector of the Atlantic Ocean, and assess an...