, Volume 9, Issue 3-4, pp 253-262

The structure of schools of giant bluefin tuna in Cape Cod Bay

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Synopsis

We report the first investigation of the structure of schools of predatory fish, analyzed from aerial photographs of Atlantic bluefin tuna,Thynnus thynnus, in the wild. Internal structure of formations of giant bluefin supports two hypotheses for the formation of predatory fish schools. The parabolic shape of the schools suggests that tuna hunt cooperatively and the position of fish within the schools is such that individuals benefit from hydrodynamical interactions with their neighbors.