Fig. 3. Stride length versus swimming speed for Sarda chiliensis (each symbol denotes one individual) and two species of tuna, yellowfin Thunnus albacares (upright solid triangles) and skipjack Katsuwonus pelamis (inverted solid triangles). Tuna data represented by solid lines are from Dewar and Graham (1994b) and by broken lines from Knower (1998). Best-fit regression equation (regression coefficients ± S.D.) for the bonito: stride length = 0.32±0.08 x speed + 51.15±6.98 (N=8). Dotted lines are the 95% confidence intervals of this regression.

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