■39- 



B 



2ea 



J58 . 



O 

 O 



£ 



kJ 



lea 



58 . 



1S58 1962 1964 196S 



1968 1970 

 YEAR 



1972 1974 1976 



THOUSANDS 

 28 



978 



YEAR 



Figure 4. a) Fishing effort in hooks for the longline fishery in 

 the northern Atlantic, 1960 to 1977. 



b) Effort in days at sea for the Canary Island bait- 

 boat fleet, 1975 to 1978. 



