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Figure 2


Fig. 2. (A) Reaction distance at irradiances of 0.5 µmol m-2 s-1 (open symbols) and 0.015 µmol m-2 s-1 (closed symbols). Values are means ± s.d. Downward pointing arrows indicate the {lambda}max of the three cone pigments; upward pointing arrow, that of the rods. (B) Optomotor responses. The maximum responses of the fish are indicated by filled symbols and the average responses by open symbols. Values are means ± s.d. Downward pointing arrows indicate the {lambda}max of the three cone pigments.