@article{fdi:010079498,
  title = {{C}an drifting objects drive the movements of a vulnerable pelagic shark ?},
  author = {{B}onnin, {L}. and {L}ett, {C}hristophe and {D}agorn, {L}aurent and {F}ilmalter, {J}. {D}. and {F}orget, {F}abien and {V}erley, {P}hilippe and {C}apello, {M}anuela},
  editor = {},
  language = {{ENG}},
  abstract = {{J}uvenile silky sharks ({C}archarhinus falciformis)regularly associate with floating objects yet the reasons driving this behaviour remain uncertain. {U}nderstanding the proportion of time that silky sharks spend associated with floating objects is essential for assessing the impacts of the extensive use of fish aggregating devices ({FAD}s) in the tropical tuna purse-seine fisheries, including increased probability of incidental capture and the potential of an ecological trap. {P}revious studies provided insight into the amount of time that silky sharks spent at an individual {FAD} but were unable to assess neither the time spent between two associations nor the proportion of time spent associated/unassociated. {T}he percentage of time that juvenile silky sharks spend unassociated with floating objects was estimated through the analysis of horizontal movements of 26 silky sharks monitored with pop-up archival tags. {U}nder the assumption that a high association rate with drifting {FAD}s would align the trajectories of tracked sharks with ocean surface currents, a novel methodology is proposed, based on the comparison of shark trajectories with simulated trajectories of passively drifting particles derived using a {L}agrangian model. {R}esults revealed that silky shark trajectories were divergent from surface currents, and thus unassociated with {FAD}s, for at least 30% of their time. {T}he potential of the methodology and the results are discussed in the context of increasing {FAD} densities in the {I}ndian {O}cean.},
  keywords = {bycatch ; fish aggregating devices ; {L}agrangian drift model ; pop-up ; satellite archival telemetry ; silky shark ; vulnerability ; {OCEAN} {INDIEN} ; {SEYCHELLES} ; {MOZAMBIQUE} {CANAL}},
  booktitle = {},
  journal = {{A}quatic {C}onservation : {M}arine and {F}reshwater {E}cosystems},
  volume = {32},
  numero = {1},
  pages = {74--82},
  ISSN = {1052-7613},
  year = {2021},
  DOI = {10.1002/aqc.3420},
  URL = {https://www.documentation.ird.fr/hor/fdi:010079498},
}