F-36 



150 



170 



170 



Areas of seasonally acceptable temperature to salmon 



t:^\'^v^\^ Summer distribution of krill 



Fig. 6. 8 The northern limit of krill distribution (see Fig. 6.1) compared 

 with that of the range of surface temperatures acceptable to 

 salmon (sheided area) (from Joyn«r e_t al . , 1974 ) 



