@article{fdi:010085260,
  title = {{S}patio-temporal distribution of juvenile oceanic whitetip shark incidental catch in the {W}estern {I}ndian {O}cean},
  author = {{L}opetegui-{E}guren, {L}. and {P}oos, {J}. {J}. and {A}rrizabalaga, {H}. and {G}uirhem, {G}. {L}. and {M}urua, {H}. and {L}ezama-{O}choa, {N}. and {G}riffiths, {S}. {P}. and {G}ondra, {J}. {R}. and {S}abarros, {P}hilippe and {B}aez, {J}. {C}. and {J}uan-{J}orda, {M}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}ceanic whitetip shark ({C}archarhinus longimanus) is an important top predator in pelagic ecosystems currently classified as globally {C}ritically {E}ndangered by the {I}nternational {U}nion for the {C}onservation of {N}ature. {T}his species is incidentally caught by fisheries targeting highly migratory tunas and billfishes throughout the {I}ndian {O}cean. {U}nderstanding the temporal, spatial and environmental factors influencing the capture of this species is essential to reduce incidental catches. {I}n this study, we used generalized additive models to analyze the spatio-temporal distributions of the juvenile oceanic whitetip shark catches and the environmental conditions in the western {I}ndian {O}cean using observer data from 2010 to 2020 of the {E}uropean {U}nion and associated flags purse seine fishery. {W}e found sea surface temperature and nitrate concentration to be the most important environmental variables predicting the probability of catching an oceanic whitetip shark. {A} higher probability of capture was predicted in areas where sea surface temperature was below 24 degrees {C} and with low nitrate concentrations close to zero and intermediate values (1.5-2.5 mmol.m(-3)). {W}e also found a higher probability of capture in sets on fish aggregating devices than in sets on free schools of tuna. {T}he {K}enya and {S}omalia basin was identified to have higher probabilities of capture during the summer monsoon ({J}une to {S}eptember) when upwelling of deep cold waters occurs. {W}e provide the first prediction maps of capture probabilities and insights into the environmental preferences of oceanic whitetip shark in the western {I}ndian {O}cean. {H}owever, the causal mechanisms behind these insights should be explored in future studies before they can be used to design spatial management and conservation strategies, such as time-area closures, for bycatch avoidance.},
  keywords = {oceanic whitetip shark ; species distribution model ; bycatch species ; tropical tuna purse-seine fishery ; {W}estern {I}ndian {O}cean ; {OCEAN} {INDIEN}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {9},
  numero = {},
  pages = {863602 [19 p.]},
  year = {2022},
  DOI = {10.3389/fmars.2022.863602},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085260},
}