Pre-dawn to daylight acoustic track record of a South Pacific (Polynesia) bigeye tuna, showing its deep diving in pursuit of the downward migrating deep.

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Presentation transcript:

Pre-dawn to daylight acoustic track record of a South Pacific (Polynesia) bigeye tuna, showing its deep diving in pursuit of the downward migrating deep scattering layer (DSL). Pre-dawn to daylight acoustic track record of a South Pacific (Polynesia) bigeye tuna, showing its deep diving in pursuit of the downward migrating deep scattering layer (DSL). Reproduced with permission from Dagorn et al. (2000). Jeffrey B. Graham, and Kathryn A. Dickson J Exp Biol 2004;207:4015-4024 © The Company of Biologists Limited 2004