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| Logan, J.m.; Pethybridge, Heidi; Lorrain, Anne; Somes, C.; Allain, Valerie; Bodin, Nathalie; Choy, C.a.; Duffy, L.; Goñi, N.; Graham, B.; Langlais, C.; Ménard, F.; Olson, R.; Young, J.. |
| A global dataset of carbon stable isotope (δ13C) values from yellowfin, bigeye, and albacore tuna muscle tissue (n = 4275) was used to develop a novel tool to infer broad-scale movement and residency patterns of these highly mobile marine predators. This tool was coupled with environmental models and lipid content (C:N ratio) of tuna muscle tissues to examine ocean warming impacts on tuna ecology and bioenergetic condition across Longhurst provinces. Over a 16-year study period (2000–2015), latitudinal gradients in tuna δ13C values were consistent, with values decreasing with increasing latitude. Tuna δ13C values, reflecting modelled global phytoplankton δ13C landscapes (“isoscapes”), were largely related to spatial changes in oxygen concentrations at... |
| Tipo: Text |
Palavras-chave: Albacore tuna; Bigeye tuna; Yellowfin tuna; Carbon isotope analysis; Movement indicators; Global ocean; Fisheries management. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00617/72943/71964.pdf |
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