16,000 



Figure 3.— Catch and temperature data by block area for salmon caught off 

 northern California. 



0,000 





SALMON 



8,000 





, BLOCK NUMBER 448 



6,000 











/ 1 DISTRIBUTION OF CATCH 



4,000 





/\ J \ BY TEMPERATURE 



2,000 

 



~^J ' 



— r 1 — i — i i "i*! — i — i — i 1 1 — i — r 



72 CO 10.0 



23 8 r- \ 



l \ 

 / ^ 



10.0 

 7.2 

 218 



200 



\ CATCH /MONTH TEMPERATURE 



ll A AT WHICH MOST 



\ / \ FISH WERE CAUGHT 



\ / \ 



12,000 



10,000 « 



8,000 o 



6,000 ,= 



4.000 5 



l- 



2.000 S 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



STD DEVIATION 



Ire 55T 



\ 'I *l I) II |l )t " 



4,000 



SALMON 



BLOCK NUMBER 446 



DISTRIBUTION OF CATCH 

 BY TEMPERATURE 



h-r 

 7.2 CO 10.0 



— i — i — i — i — r 

 200 23.8 



CATCH /MONTH,' "'v 



12,000 

 10,000 

 8,000 

 6,000 

 4,000 

 2,000 



STO DEVIATION -. 



T 



SST 



I l| 'I f| H I) I' 



M " 'I ,, 



7.2 



•o 



10.0 15.0 





20.0 23.S 



238 





































?00 



— 





TCH/ MONTH / \ 









r— 



tit 









*- 





/ * 





TEMPERATURE 





— 









AT WHICH MOST " 



15.0 



- 





/ 



\ 

 \ 



\ 



FISH WERE CAUGHT 



10.0 



\ 







K 

















7.2 





— r* 



f" | | | | 





T 1 1 



14,000 

 12,000 

 10,000 

 8,000 

 6,000 

 4,000 

 2,000 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 

 238 r 



STO DEVIATION 



: t 



SST 



ti T l tl t 



h l t* 



— I 1 1 1 1 1 1 1 1 1 1 



JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



Figure 4. — Distribution of catch by temperature and by month for catch, tem- 

 perature at which most salmon were taken, mean catch temperature and its 

 standard deviation, and sea surface temperature range and means for the three 

 major block areas having salmon catches. Left, block 448; top, block 446; bot- 

 tom, block 457. 



