@inproceedings{fdi:010063387,
  title = {{S}tandarized {CPUE} for skipjack tuna from the european purse seine fleet in the {I}ndian ocean from 1984 to 2013},
  author = {{S}oto, {M}. and {F}ernandez, {F}. and {D}elgado de {M}olina, {A}. and {C}hassot, {E}mmanuel},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n this document an abundance index is obtained for the tropical tuna skipjack ({K}atsuwonus pelamis) of {E}uropean purse seine fishery in the {I}ndian {O}cean from 1984 to 2013 using generalized linear models. {C}atch and effort data come from detailed daily logbooks. {C}atch rates are modeled using the delta lognormal model. {T}he method estimates a cpue from aggregated positive catches, and the proportion of catches, so the final individual abundance indices are calculated multiplying both estimators for each species. {E}xplanatory factors used in the analysis are: year, zone, quarter, holding capacity, country and starting date of the vessel. {Y}ear is the most explanatory factor of variability in cpue followed by the fishing area and the quarter. {V}essel characteristics have a significant explanatory effect in observed positive catch rates.},
  keywords = {{PECHE} {THONIERE} ; {SENNEUR} ; {CAPTURE} ; {EFFORT} {DE} {PECHE} ; {ABONDANCE} ; {ESTIMATION} {DE} {STOCK} ; {DISPOSITIF} {DE} {CONCENTRATION} {DES} {POISSONS} ; {VARIATION} {PLURIANNUELLE} ; {OCEAN} {INDIEN}},
  numero = {{IOTC}-2014-{WPTT}16-24},
  pages = {8},
  booktitle = {16{\`e}me groupe de travail sur les thons tropicaux},
  year = {2014},
  URL = {https://www.documentation.ird.fr/hor/fdi:010063387},
}