@article{fdi:010068362, title = {{P}opulation assessment of tropical tuna based on their associative behavior around floating objects}, author = {{C}apello, {M}anuela and {D}eneubourg, {J}. {L}. and {R}obert, {M}. and {H}olland, {K}. {N}. and {S}chaefer, {K}. {M}. and {D}agorn, {L}aurent}, editor = {}, language = {{ENG}}, abstract = {{E}stimating the abundance of pelagic fish species is a challenging task, due to their vast and remote habitat. {D}espite the development of satellite, archival and acoustic tagging techniques that allow the tracking of marine animals in their natural environments, these technologies have so far been underutilized in developing abundance estimations. {W}e developed a new method for estimating the abundance of tropical tuna that employs these technologies and exploits the aggregative behavior of tuna around floating objects ({FAD}s). {W}e provided estimates of abundance indices based on a simulated set of tagged fish and studied the sensitivity of our method to different association dynamics, {FAD} numbers, population sizes and heterogeneities of the {FAD}-array. {T}aking the case study of yellowfin tuna ({T}hunnus albacares) acoustically-tagged in {H}awaii, we implemented our approach on field data and derived for the first time the ratio between the associated and the total population. {W}ith more extensive and long-term monitoring of {FAD}-associated tunas and good estimates of the numbers of fish at {FAD}s, our method could provide fisheries-independent estimates of populations of tropical tuna. {T}he same approach can be applied to obtain population assessments for any marine and terrestrial species that display associative behavior and from which behavioral data have been acquired using acoustic, archival or satellite tags.}, keywords = {}, booktitle = {}, journal = {{S}cientific {R}eports - {N}ature}, volume = {6}, numero = {}, pages = {art. 36415 [14 p.]}, ISSN = {2045-2322}, year = {2016}, DOI = {10.1038/srep36415}, URL = {https://www.documentation.ird.fr/hor/fdi:010068362}, }