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Título : The imprint of anthropogenic CO2 emissions on Atlantic bluefin tuna otoliths
Autor : Fraile, Igaratza; Arrizabalaga, Haritz; Groeneveld, Jeroen; Santos, Miguel Neves; Macias, David; Addis, Piero; Dettman, David L.; Karakulak, Saadet; Deguara, Simeon; Koelling, Martin; Rooker, Jay R.
Citación : JOURNAL OF MARINE SYSTEMS, 2016, 158, 26-33
Resumen : Otoliths of Atlantic bluefin tuna (Thunnus thynnus) collected from the Mediterranean Sea and North Atlantic Ocean were analyzed to evaluate changes in the seawater isotopic composition over time. We report an annual otolith delta C-13 record that documents the magnitude of the delta C-13 depletion in the Mediterranean Sea between 1989 and 2010. Atlantic bluefin tuna in our sample (n = 632) ranged from 1 to 22 years, and otolith material corresponding to the first year of life (back-calculated birth year) was used to reconstruct seawater isotopic composition. Otolith 8180 remained relatively stable between 1989 and 2010, whereas a statistically significant decrease in delta C-13 was detected across the time interval investigated, with a rate of decline of 0.05 parts per thousand yr(-1) (-0.94 parts per thousand depletion throughout the recorded period). The depletion in otolith delta C-13 over time was associated with the oceanic uptake of anthropogenically derived CO2. (C) 2016 Elsevier B.V. All rights reserved.
Palabras clave : delta C-13 and delta O-18; Mediterranean Sea; CO2 emission; Suess effect; ATMOSPHERIC CO2; ISOTOPIC COMPOSITION; CLIMATE VARIABILITY; MEDITERRANEAN SEA; THUNNUS-THYNNUS; CARBON-DIOXIDE; SURFACE OCEANS; FISH OTOLITHS; RECENT TRENDS; DELTA C-13
Fecha de publicación : 2016
Editorial : ELSEVIER SCIENCE BV
Tipo de documento: Article
Idioma: Inglés
DOI: 10.1016/j.jmarsys.2015.12,012
URI : http://dspace.azti.es/handle/24689/147
ISSN : 0924-7963
E-ISSN: 1879-1573
Patrocinador: European Union \[SI2/585616)]
ICCAT CPCs
ICCAT Secretariat
Spanish Ministry of Economy and Competitiveness (MINECO) \[CTM2011-27505]
National Geographic Society \[W132-10]
Basque Government \[351BI20080022]
Aparece en las tipos de publicación: Artículos científicos



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