"^ — IT 



-1 1 1 r 



70 



1 

 65 



-[ 1 I r 



Figure 5b 



Spring distribution 

 Fall distribution 

 Concentrations 



Only the 100 fathom line is shown, 

 Mercator Projection 



-^^^ 



.>5 io ds 



I I ■ ' 1 _l I I 1 1 J 1 1 L. 



jI I I I L. 



58 



