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Figure 4


Fig. 4. Effects of ambient temperature and swimming speed on gross cost of transport (GCOT) of bluefin tuna. GCOT was calculated from measured MO2 and swimming speed using an oxycalorific coefficient of 14.1 J mg O –12. A significant interaction of speed and temperature was observed (P=0.023). Values are means ± s.d. of MO2 measurements from three individual bluefin tuna (mass=8.1±0.6 kg).