FISHERY BULLETIN: VOL. 70, NO. 3 



Figure 7. — Reactive perceptive field in the horizontal plane for anchovy larvae. Each 

 point represents position of a prey in the horizontal plane at time larvae first reacted 

 to it. Distances in X and Y axes were divided by the lengths of the larvae and expressed 

 as proportions of larval length. Arrows indicate lines that would enclose 95% of prey 

 sighted in each plane. 





Z 



0.5r 



0,3 



01 



03 



05L 



z 



0.1 



1 1 1 



03 



05 



FiGURK 8. — Reactive perceptive field in the vertical plane for anchovy larvae. Distances 

 on X and Z are expressed as a proportion of larvae length ; points are position of prey 

 when larvae first reacted to them; crosses indicate point of intersection of visual cone 

 with Y = 95% (the 95% limit of prey distribution in Y given in Figure 7) ; and arrows 

 on Z indicate projected values of Z for intersection points. 



830 



