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Figure 5


Fig. 5. Comparison of thrust power (Pt) as a function of swimming speed (U/BL) for the manatee and four cetaceans. The black line represents the calculated thrust power for an average manatee using Lighthill's bulk momentum model (see text). Colored lines show Pt for beluga Delphinapterus leucas, killer whale Orcinus orca, false killer whale Pseudorca crassidens and bottlenose dolphin Tursiops truncatus (from Fish, 1998b).





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