@article{fdi:010053561, title = {{F}ishing tuna around {F}ish {A}ggregating {D}evices ({FAD}s) vs free swimming schools : skipper decision and other determining factors}, author = {{G}uillotreau, {P}atrice and {S}alladarre, {F}. and {D}ewals, {P}atrice and {D}agorn, {L}aurent}, editor = {}, language = {{ENG}}, abstract = {{F}ish {A}ggregating {D}evices ({FAD}s) are increasingly used by tuna purse-seine fleets all around the world, modifying the species catch composition. {W}e analyse the determinants of {FAD} vs free school ({FS}) fishing, including the skipper effect, and environmental and economic factors. {A} multivariate and econometric analysis of a panel dataset for the {F}rench purse-seine fleet in the {I}ndian {O}cean (1980-2007), complemented by a survey of fishers, demonstrates the influential role of climate and prey on {FAD} fishing and also emphasises individual skipper preference. {H}owever, we found that the major determinant of {FAD} fishing remains the growing fishing capacity (use of bigger vessels, satellite buoys, echo-sounders, supply vessels), thus modifying the species catch composition towards smaller tuna. {O}ther things being equal, raising the proportion of {FAD} sets by 1% would increase the catches of skipjack by 1.3% and decrease those of large yellowfin tuna by 1.7%. {T}his result shows that the control of effort and investment could be adapted through management measures to encourage one fishing method.}, keywords = {{T}una ; {P}urse-seine ; {F}ish {A}ggregating {D}evices ; {S}kipper effect}, booktitle = {}, journal = {{F}isheries {R}esearch}, volume = {109}, numero = {2-3}, pages = {234--242}, ISSN = {0165-7836}, year = {2011}, DOI = {10.1016/j.fishres.2011.02.007}, URL = {https://www.documentation.ird.fr/hor/fdi:010053561}, }