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Figure 4


Fig. 4. Relationship between the cost of transport (COT) and swimming speed for bluegill sunfish. Filled symbols, COTgross; open symbols, COTnet; black symbols, labriform swimming; red symbols, undulatory swimming. Data are fitted with the following relationships: labriform COTgross=5.73–10.1U; undulatory COTgross=3.59+76.3U3.96; labriform COTnet=1.9+0.13U; undulatory COTnet=1.83+39.2U2.84. The broken lines show 95% confidence intervals for the fitted relationships. Values are means ± s.e.m., N=9, except where the speed ranges for labriform and undulatory swimming overlap at 0.25 m s–1, where N=4 for labriform swimming and N=5 for undulatory swimming.





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