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Fig. 2. Ground distance covered before fatigue as predicted from
Equation 1 for prolonged and
sprint modes of white sucker (this study). (A) The full range of possible
distances covered at each mode up to 16 BL s-1 against
flow velocities of 510 BL s-1 (contours). (B)
Maximum distance attainable at each mode when fish swim at optimum speed
against flows ranging up to 15 BL s-1. Fish should switch
modes where the two curves intersect (Ufcrit). For an
explanation of symbols, see List of symbols.