@article{fdi:010059906,
  title = {{I}ntra-individual behavioral variability displayed by tuna at fish aggregating devices ({FAD}s)},
  author = {{R}obert, {M}arianne and {D}agorn, {L}aurent and {F}ilmalter, {J}. {D}. and {D}eneubourg, {J}. {L}. and {I}tano, {D}. and {H}olland, {K}.},
  editor = {},
  language = {{ENG}},
  abstract = {{F}ishers have exploited the associative behavior displayed by several pelagic fish species with floating objects for decades, through the use of man-made fish aggregating devices ({FAD}s), which facilitate the capture of such species. {H}owever, our understanding of this associative behavior and its adaptive value is poor and the scientific community is ill-equipped to provide fishery managers with science-based recommendations on the impacts of {FAD}s on ecosystems. {I}n an array of 13 anchored {FAD}s around {O}ahu, {H}awaii, {USA}, 72 yellowfin tuna {T}hunnus albacares were equipped with internal acoustic tags, which facilitated the continuous monitored of their presence and absence around each {FAD} using automated acoustic receivers. {D}ata were analyzed using survival curves with the objective of determining the behavioral dynamics of fish joining and leaving the {FAD}s. {R}esidence times at {FAD}s were characterized by 4 behavioral modes: briefly passing near a {FAD} (average 13.1 min), short association (average 2.9 d), and 2 long association behaviors (13.8 and 23.2 d, respectively). {S}tatistical analyses suggest that different behavioral modes were likely dependent upon local conditions around the {FAD} at a given time (environmental factors or social interactions). {W}e observed 2 behavioral modes for absence times from {FAD}s: short (2.8 d) and long (infinite). {M}ore importantly, individuals exhibited behavioral variability, switching between short and long residence times at {FAD}s. {T}his suggests that large pelagic fish can display a range of behavioral responses while in an array of {FAD}s, challenging the common hypothesis of a single behavioral pattern, which could ultimately lead to an ecological trap. {S}urvival curves were best fitted with exponential models, suggesting that underlying behavioral processes were time independent.},
  keywords = {{B}ehavioral variability ; {F}ish aggregating device ; {FAD} ; {Y}ellowfin tuna ; {A}coustic tagging ; {R}esidence time ; {S}urvival curve},
  booktitle = {},
  journal = {{M}arine {E}cology {P}rogress {S}eries},
  volume = {484},
  numero = {},
  pages = {239--247},
  ISSN = {0171-8630},
  year = {2013},
  DOI = {10.3354/meps10303},
  URL = {https://www.documentation.ird.fr/hor/fdi:010059906},
}