FN Archimer Export Format PT J TI The aggregation of tuna around floating objects: What could be the underlying social mechanisms? BT AF ROBERT, Marianne DAGORN, Laurent DENEUBOURG, Jean Louis AS 1:1,2,3;2:2;3:1; FF 1:PDG-RBE-STH-LTBH;2:;3:; C1 Univ Libre Brussels, Unit Social Ecol, B-1050 Brussels, Belgium. Inst Rech Dev, UMR 212, F-34203 Sete, France. IFREMER, Lab Technol & Biol Halieut, F-56100 Lorient, France. C2 UNIV LIBRE BRUSSELS, BELGIUM IRD, FRANCE IFREMER, FRANCE SI LORIENT SE PDG-RBE-STH-LTBH IRD IN WOS Ifremer jusqu'en 2018 copubli-france copubli-p187 copubli-europe IF 2.116 TC 10 UR https://archimer.ifremer.fr/doc/00195/30638/29091.pdf LA English DT Article DE ;Models of aggregation;Monte Carlo multi-agents simulations;Fish aggregating devices;Social behavior AB Several empirical and theoretical studies have shown how the exploitation of food sources, the choice of resting sites or other types of collective decision-making in heterogeneous environments are facilitated and modulated by social interactions between conspecifics. It is well known that many pelagic fishes live in schools and that this form of gregarious behavior provides advantages in terms of food intake and predator avoidance efficiency. However, the influence of social behavior in the formation of aggregations by tuna under floating objects (FOBs) is poorly understood. In this work, we investigated the collective patterns generated by different theoretical models, which either include or exclude social interactions between conspecifics, in the presence of two aggregation sites. The resulting temporal dynamics and distributions of populations were compared to in situ observations of tuna behavior. Our work suggests that social interactions should be incorporated in aggregative behavior to reproduce the temporal patterns observed in the field at both the individual and the group level, challenging the common vision of tuna aggregations around FOBs. Our study argues for additional data to further demonstrate the role of social behavior in the dynamics of these fish aggregations. Understanding the interplay between environmental and social factors in the associative behavior of fish with FOBs is necessary to assess the consequences of the widespread deployment of artificial FOBs by fishermen. PY 2014 PD OCT SO Journal Of Theoretical Biology SN 0022-5193 PU Academic Press Ltd- Elsevier Science Ltd VL 359 UT 000341069600019 BP 161 EP 170 DI 10.1016/j.jtbi.2014.06.010 ID 30638 ER EF