@article{fdi:010067421,
  title = {{R}eproductive biology of {A}lbacore tuna ({T}hunnus alalunga) in the western {I}ndian {O}cean},
  author = {{D}hurmeea, {Z}. and {Z}udaire, {I}. and {C}hassot, {E}mmanuel and {C}edras, {M}. and {N}ikolic, {N}. and {B}ourjea, {J}. and {W}est, {W}. and {A}ppadoo, {C}. and {B}odin, {N}athalie},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he reproductive biology of albacore tuna, {T}hunnus alalunga, in the western {I}ndian {O}cean was examined through analysis of the sex ratio, spawning season, length-at-maturity ({L}50), spawning frequency and fecundity. {F}rom 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. {U}sing histological analyses and gonadosomatic index, spawning was found to occur between 10°{S} and 30°{S}, mainly to the east of {M}adagascar from {O}ctober to {J}anuary. {L}arge females contributed more to reproduction through their longer spawning period compared to small individuals. {T}he {L}50 (mean ± standard error) of female albacore was estimated at 85.3 ± 0.7 cm {LF}. {A}lbacore spawn on average every 2.2 days within the spawning region and spawning months, from {N}ovember to {J}anuary. {B}atch 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. {T}he study provides new information on the reproductive development and classification of albacore in the western {I}ndian {O}cean. {T}he reproductive parameters will reduce uncertainty in current stock assessment models which will eventually assist the fishery to be sustainable for future generations.},
  keywords = {{OCEAN} {INDIEN}},
  booktitle = {},
  journal = {{PL}o{S} {O}ne},
  volume = {11},
  numero = {12},
  pages = {e0168605 [22  en ligne]},
  ISSN = {1932-6203},
  year = {2016},
  DOI = {10.1371/journal.pone.0168605},
  URL = {https://www.documentation.ird.fr/hor/fdi:010067421},
}