FN Archimer Export Format PT J TI Mercury concentrations in tuna blood and muscle mirror seawater methylmercury in the Western and Central Pacific Ocean BT AF Barbosa, Romina Point, David Médieu, Anais Allain, Valerie Gillikin, David P. Couturier, Lydie I.E. Munaron, Jean-Marie Roupsard, François Lorrain, Anne AS 1:1;2:2;3:1;4:3;5:4;6:1;7:5;8:3;9:5; FF 1:;2:;3:;4:;5:;6:;7:;8:;9:; C1 Univ Brest, IRD, CNRS, Ifremer, LEMAR, F-29280 Plouzané, France Geosciences Environnement Toulouse (GET) - Institut de Recherche pour le Développement (IRD), CNRS, Université de Toulouse, France Pacific Community, Oceanic Fisheries Programme, Nouméa, New Caledonia Department of Geosciences, Union College, 807 Union St., Schenectady, NY 12308, USA Univ Brest, IRD, CNRS, Ifremer, LEMAR, F-29280 Plouzané, France C2 UBO, FRANCE IRD, FRANCE PACIFIC COMMUNITY, FRANCE UNION COLL, USA IRD, FRANCE UM LEMAR IN WOS Cotutelle UMR copubli-france copubli-int-hors-europe IF 5.8 TC 6 UR https://archimer.ifremer.fr/doc/00776/88756/94657.pdf LA English DT Article CR OUTPACE BO L'Atalante DE ;Methylmercury;Tunas;Blood;White muscle;Vertical habitat;Pacific Ocean AB Understanding the relationship between mercury in seafood and the distribution of oceanic methylmercury is key to understand human mercury exposure. Here, we determined mercury concentrations in muscle and blood of bigeye and yellowfin tunas from the Western and Central Pacific. Results showed similar latitudinal patterns in tuna blood and muscle, indicating that both tissues are good candidates for mercury monitoring. Complementary tuna species analyses indicated species- and tissue- specific mercury patterns, highlighting differences in physiologic processes of mercury uptake and accumulation associated with tuna vertical habitat. Tuna mercury content was correlated to ambient seawater methylmercury concentrations, with blood being enriched at a higher rate than muscle with increasing habitat depth. The consideration of a significant uptake of dissolved methylmercury from seawater in tuna, in addition to assimilation from food, might be interesting to test in models to represent the spatiotemporal evolutions of mercury in tuna under different mercury emission scenarios. PY 2022 PD JUN SO Marine Pollution Bulletin SN 0025-326X PU Elsevier BV VL 180 UT 000880170200010 DI 10.1016/j.marpolbul.2022.113801 ID 88756 ER EF