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Fig. 3. Absolute (cm s-1) and relative (bl s-1) sprint
swimming speed of cod as they pass through the swimming apparatus, after 12
weeks of feeding treatment. Sprint speeds were measured as explained in
Martínez et al. (2002).
We show the fastest speed between the beginning of the tunnel and the lasers
located at the indicated distances from the first laser in the tunnel. Data
are shown as means ± S.E.M.