FN Archimer Export Format
PT J
TI Otolith shape variation provides a marker of stock origin for north Atlantic bluefin tuna (Thunnus thynnus)
BT 
AF BROPHY, Deirdre
   HAYNES, Paula
   ARRIZABALAGA, Haritz
   FRAILE, Igaratza
   FROMENTIN, Jean-Marc
   GARIBALDI, Fulvio
   KATAVIC, Ivan
   TINTI, Fausto
   KARAKULAK, F. Saadet
   MACIAS, David
   BUSAWON, Dheeraj
   HANKE, Alex
   KIMOTO, Ai
   SAKAI, Osamu
   DEGUARA, Simeon
   ABID, Nouredinne
   SANTOS, Miguel Neves
AS 1:1;2:1;3:2;4:2;5:3;6:4;7:5;8:6;9:7;10:8;11:9;12:9;13:10;14:10;15:11;16:12;17:13;
FF 1:;2:;3:;4:;5:PDG-RBE-MARBEC;6:;7:;8:;9:;10:;11:;12:;13:;14:;15:;16:;17:;
C1 Galway Mayo Inst Technol, Marine & Freshwater Res Ctr, Dublin Rd, Galway H91 T8NW, Ireland.
   AZTI Tecnalia, Div Marine Res, Portualdea Z-G, E-20110 Pasaia, Gipuzkoa, Spain.
   Univ Montpellier, IFREMER, Marine Biodivers Exploitat & Conservat, UMR,MARBEC,IRD,CNRS, Ave Jean Monnet,BP 171, F-34203 Sete, France.
   Univ Genoa, Dept Earth Environm & Life Sci, Corso Europa 26, I-16132 Genoa, Italy.
   Inst Oceanog & Fisheries, Setaliste 1,Mestrovica 63, HR-21000 Split, Croatia.
   Univ Bologna, Dept Biol Geol & Environm Sci, Sch Sci, Via Selmi 3, I-40126 Bologna, Italy.
   Istanbul Univ, Fac Fisheries, Ordu St 200, TR-34470 Istanbul, Turkey.
   Spanish Inst Oceanog, Pesquero Pesquero S-N, E-29640 Malaga, Spain.
   Fisheries & Oceans Canada, Peches & Oceans Canada, St Andrews Biol Stn, 531 Brandy Cove Rd, St Andrews, NB E5B 2L9, Canada.
   Natl Res Inst Far Seas Fisheries, 5-7-1 Orido, Shimizu, Shizuoka 4248633, Japan.
   Federat Maltese Aquaculture Producers FMAP, St Christopher St,54 VLT 1462, Valletta, Malta.
   Inst Natl Rech Halieut INRH, Reg Ctr Tangier, BP 5268, Dradeb, Tangier, Morocco.
   IPMA Portuguese Inst Ocean & Atmosphere, Ave 5 Outubro S-N, P-8700305 Olhao, Portugal.
C2 GMIT, IRELAND
   AZTI, SPAIN
   IFREMER, FRANCE
   UNIV GENOA, ITALY
   INST OCEANOG & FISHERIES, CROATIA
   UNIV BOLOGNA, ITALY
   UNIV ISTANBUL, TURKEY
   IEO, SPAIN
   MPO, CANADA
   NRIFSF, JAPAN
   FEDERAT MALTESE AQUACULTURE PRODUCERS, MALTA
   INRH, MOROCCO
   IPMA, PORTUGAL
SI SETE
SE PDG-RBE-MARBEC
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 1.757
TC 22
UR https://archimer.ifremer.fr/doc/00346/45745/45381.pdf
LA English
DT Article
DE ;elliptical Fourier analysis;population structure;stock mixture analysis
AB Two stocks of bluefin tuna (Thunnus thynnus) inhabit the north Atlantic; the western and eastern stocks spawn in the Gulf of Mexico and the Mediterranean Sea respectively. Trans-Atlantic movements occur outside spawning time whereas natal homing maintains stock structure. Commercial fisheries may exploit a mixed assemblage of both stocks. The incorporation of mixing rates into stock assessment is precluded by uncertainties surrounding stock discrimination. Otolith shape descriptors were used to characterise western and eastern stocks of Atlantic bluefin tuna in the present study and to estimate stock composition in catches of unknown origin. Otolith shape varied with length and between locations and years. Within a restricted size range (200-297-cm fork length (FL)) the two stocks were distinguished with an accuracy of 83%. Bayesian stock mixture analysis indicated that samples from the east Atlantic and Mediterranean were predominantly of eastern origin. The proportion assigned to the eastern stock showed slight spatial variation; however, overlapping 95% credible intervals indicated no significant difference (200-297 cm FL: central Atlantic, 73-100%; Straits of Gibraltar, 73-100%; Morocco, 50-99%; Portugal 64-100%). Otolith shape could be used in combination with other population markers to improve the accuracy of mixing rate estimates for Atlantic bluefin tuna.
PY 2016
SO Marine And Freshwater Research
SN 1323-1650
PU Csiro Publishing
VL 67
IS 7
UT 000378929600015
BP 1023
EP 1036
DI 10.1071/MF15086
ID 45745
ER

EF