Littoral zone 



Open sea 



p. 113 



c 

 o 



■fH 



+-> -tJ 



(D O 



to d 



^^ ^ 



a, rt 



u 

 ■^ J2 



u 

 to 



a 



CO C 

 o Pi 



o 



X 



<u 

 u 





a o 



to O 



a 



0) 



u 

 o 



u 



c 



ni 

 +-> 

 o 

 u 



ft 



d 



I — I 



w 



u 

 >< 

 u 







117 



