FN Archimer Export Format
PT J
TI Reproductive Biology of Albacore Tuna (Thunnus alalunga) in the Western Indian Ocean
BT 
AF DHURMEEA, Zahirah
   ZUDAIRE, Iker
   CHASSOT, Emmanuel
   CEDRAS, Maria
   NIKOLIC, Natacha
   BOURJEA, Jerome
   WEST, Wendy
   APPADOO, Chandani
   BODIN, Nathalie
AS 1:1,2;2:2,3;3:2,4;4:4;5:5;6:6;7:7;8:8;9:2,4;
FF 1:;2:;3:;4:;5:PDG-RBE-DOI;6:PDG-RBE-MARBEC-LHM;7:;8:;9:;
C1 Univ Mauritius, Fac Sci, Dept Biosci, Reduit, Mauritius.
   IRD Res Unit MARine Biodivers Exploitat & Conserv, Victoria, Mahe, Seychelles.
   Basque Fdn Sci, Ikerbasque, Bilbao, Spain.
   SFA, Victoria, Mahe, Seychelles.
   Ifremer DOI Reunion, Le Port, Reunion.
   Ifremer Res Unit MARine Biodivers Exploitat & Con, Sete, France.
   DAFF, Cape Town, South Africa.
   Univ Mauritius, Dept Marine & Ocean Sci, Fisheries & Mariculture, Fac Ocean Studies, Reduit, Mauritius.
C2 UNIV MAURITIUS, MAURITIUS
   IRD, SEYCHELLES
   BASQUE FDN SCI, SPAIN
   SFA, SEYCHELLES
   IFREMER, FRANCE
   IFREMER, FRANCE
   DAFF, SOUTH AFRICA
   UNIV MAURITIUS, MAURITIUS
SI LA REUNION
   SETE
SE PDG-RBE-DOI
   PDG-RBE-MARBEC-LHM
UM MARBEC
IN WOS Ifremer jusqu'en 2018
   DOAJ
   copubli-france
   copubli-p187
   copubli-europe
   copubli-int-hors-europe
   copubli-sud
IF 2.806
TC 19
UR https://archimer.ifremer.fr/doc/00362/47284/47261.pdf
   https://archimer.ifremer.fr/doc/00362/47284/47262.pdf
LA English
DT Article
AB The reproductive biology of albacore tuna, Thunnus alalunga, in the western Indian Ocean was examined through analysis of the sex ratio, spawning season, length-at-maturity (L50), spawning frequency and fecundity. From 2013 to 2015, a total of 923 female and 867 male albacore were sampled. A bias in sex ratio was found in favor of females with fork length (LF) < 100 cm. Using histological analyses and gonadosomatic index, spawning was found to occur between 10°S and 30°S, mainly to the east of Madagascar from October to January. Large females contributed more to reproduction through their longer spawning period compared to small individuals. The L50 (mean ± standard error) of female albacore was estimated at 85.3 ± 0.7 cm LF. Albacore spawn on average every 2.2 days within the spawning region and spawning months, from November to January. Batch fecundity ranged between 0.26 and 2.09 million oocytes and the relative batch fecundity (mean ± standard deviation) was estimated at 53.4 ± 23.2 oocytes g-1 of somatic-gutted weight. The study provides new information on the reproductive development and classification of albacore in the western Indian Ocean. The reproductive parameters will reduce uncertainty in current stock assessment models which will eventually assist the fishery to be sustainable for future generations.
PY 2016
PD DEC
SO Plos One
SN 1932-6203
PU Public Library Science
VL 11
IS 12
UT 000392853100057
DI 10.1371/journal.pone.0168605
ID 47284
ER

EF