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J Therm Biol. 2000 Dec 1;25(6):419-423.

Muscle temperature in free-swimming giant Atlantic bluefin tuna (Thunnus thynnus L.).

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Department of Zoology, University of Guelph, Ontario, N1G 2W1, Guelph, Canada


Muscle temperature was measured by telemetry in giant Atlantic bluefin tuna whilst the tuna were free-swimming in large pounds. Muscle temperature tended to remain steady at about 24 degrees C; water temperature ranged from 9 to 17 degrees C. Muscle temperature was much less variable than stomach temperature in these fish. Muscle temperature varied less than 3 degrees C whereas stomach temperature varied by as much as 14 degrees C.

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