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The aggregation of tuna around floating objects : what could be the underlying social mechanisms ?
- Source :
- Journal Of Theoretical Biology (0022-5193) (Academic Press Ltd-Elsevier Science Ltd), 2014-10, Vol. 359, P. 161-170
- Publication Year :
- 2014
-
Abstract
- 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.
- Subjects :
- 0106 biological sciences
Statistics and Probability
Food intake
Movement
Theoretical models
Animals, Wild
Environment
Biology
Models of aggregation
010603 evolutionary biology
01 natural sciences
General Biochemistry, Genetics and Molecular Biology
Animals
14. Life underwater
Predator avoidance
Social behavior
Social Behavior
Group level
Behavior, Animal
General Immunology and Microbiology
Monte Carlo multi-agents simulations
Tuna
Ecology
010604 marine biology & hydrobiology
Applied Mathematics
Field (Bourdieu)
Fish aggregating devices
Pelagic zone
General Medicine
Models, Theoretical
Fish
aggregating devices
Modeling and Simulation
Exploratory Behavior
Fish
General Agricultural and Biological Sciences
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- Journal Of Theoretical Biology (0022-5193) (Academic Press Ltd-Elsevier Science Ltd), 2014-10, Vol. 359, P. 161-170
- Accession number :
- edsair.doi.dedup.....0439c8c4ca4a0c065a249dc6628f7e9d