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title Analysis of stable isotope ratios in blood of tracked wandering albatrosses fails to distinguish a C-13 gradient within their winter foraging areas in the southwest Atlantic Ocean
authors Ceia, FR; Ramos, JA; Phillips, RA; Cherel, Y; Jones, DC; Vieira, RP; Xavier, JC
author full name Ceia, Filipe R.; Ramos, Jaime A.; Phillips, Richard A.; Cherel, Yves; Jones, Daniel C.; Vieira, Rui P.; Xavier, Jose C.
title Analysis of stable isotope ratios in blood of tracked wandering albatrosses fails to distinguish a C-13 gradient within their winter foraging areas in the southwest Atlantic Ocean
nationality internacional
source RAPID COMMUNICATIONS IN MASS SPECTROMETRY
language English
document type Article
keywords plus ANTARCTIC CIRCUMPOLAR CURRENT; SOUTHERN-OCEAN; NORTHEAST ATLANTIC; FEEDING ECOLOGY; FOOD WEBS; SEABIRDS; SIGNATURES; ECOSYSTEM; VARIABILITY; CONSISTENCY
abstract RationaleThe 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 C-13 isoscape for the southwestern sector of the Atlantic Ocean, and assess any temporal variation using the wandering albatross as a model species. MethodsTracking data and blood and diet samples were collected monthly from wandering albatrosses rearing chicks at Bird Island, South Georgia, during the austral winter between May and October 2009. The C-13 and N-15 values were measured by mass spectrometry in plasma and blood cells, and related to highly accurate data on individual movements and feeding activity obtained using three types of device: GPS, activity (immersion) loggers and stomach temperature probes. ResultsThe tracked birds foraged in waters to the north or northwest of South Georgia, including the Patagonian shelf-break, as far as 2000km from the colony. The foraging region encompassed the two main fronts in the Southern Ocean (Polar and Subantarctic fronts). The C-13 values varied by only 2.1 in plasma and 2.5 parts per thousand in blood cells, and no relationships were found between the C-13 values in plasma and the mean latitude or longitude of landings or feeding events of each individual. ConclusionsThe failure to distinguish a major biogeographic gradient in C-13 values suggest that these values in the south Atlantic Ocean are fairly homogeneous. There was no substantial variation among months in either the C-13 or the N-15 values of plasma or blood cells of tracked birds. As birds did not show a significant change in diet composition or foraging areas during the study period, these results provide no evidence for major temporal variation in stable isotope ratios in consumer tissues, or in the regional marine isoscape in the austral winter of 2009. Copyright (c) 2015 John Wiley & Sons, Ltd.
author address [Ceia, Filipe R.; Ramos, Jaime A.; Vieira, Rui P.; Xavier, Jose C.] Univ Coimbra, Dept Life Sci, MARE Marine & Environm Sci Ctr, P-3004517 Coimbra, Portugal; [Phillips, Richard A.; Jones, Daniel C.; Xavier, Jose C.] NERC, British Antarctic Survey, Cambridge CB3 0ET, England; [Cherel, Yves] Univ La Rochelle, UPR CNRS 7372, Ctr Etudes Biol Chize, F-79360 Villiers En Bois, France; [Vieira, Rui P.] Univ Aveiro, Dept Biol, P-3810193 Aveiro, Portugal; [Vieira, Rui P.] Univ Aveiro, CESAM, P-3810193 Aveiro, Portugal; [Vieira, Rui P.] Natl Oceanog Ctr, Ocean & Earth Sci, Southampton SO14 3ZH, Hants, England
reprint address Ceia, FR (reprint author), Univ Coimbra, Dept Life Sci, MARE Marine & Environm Sci Ctr, P-3004517 Coimbra, Portugal.
e-mail address ceiafilipe@zoo.uc.pt
researcherid number Ceia, Filipe/A-2196-2012; CESAM, UA/M-3762-2015
orcid number Ceia, Filipe/0000-0002-5470-5183;
funding agency and grant number Foundation for Science and Technology (FCT - Portugal); European Social Fund (POPH, EU) [PTDC/BIA-BDE/64539/2006, SFRH/BPD/95372/2013]; Centre d'Etudes Biologiques de Chize (France); British Antarctic Survey (UK); Caixa Geral de Depositos Grant Program
funding text This research was co-sponsored by the Foundation for Science and Technology (FCT - Portugal) and the European Social Fund (POPH, EU) through a project grant (PTDC/BIA-BDE/64539/2006) and a post-doc grant to Filipe R. Ceia (SFRH/BPD/95372/2013), Centre d'Etudes Biologiques de Chize (France) and the British Antarctic Survey (UK). RPV was sponsored by the Caixa Geral de Depositos Grant Program
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cited reference count 38
times cited 1
total times cited count (wos, bci, and cscd) 1
publisher WILEY-BLACKWELL
publisher city HOBOKEN
publisher address 111 RIVER ST, HOBOKEN 07030-5774, NJ USA
issn 0951-4198
29-character source abbreviation RAPID COMMUN MASS SP
iso source abbreviation Rapid Commun. Mass Spectrom.
publication date DEC 30
year published 2015
volume 29
issue 24
beginning page 2328
ending page 2336
digital object identifier (doi) 10.1002/rcm.7401
page count 9
web of science category Biochemical Research Methods; Chemistry, Analytical; Spectroscopy
subject category Biochemistry & Molecular Biology; Chemistry; Spectroscopy
document delivery number CW3FC
unique article identifier WOS:000364876400002
CESAM authors