LAURS and LYNN: SEASONAL MIGRATION OF THUNNUS ALALUNGA 



40' 



J5' 



30' 









 Oj 



SNO 



^S n^O 





FIGURE 6. — Mean daily albacore cateh-per-unit effort 

 by 1° quadrangles for noncharter vessels for the period: 

 a. 16-30 May 1973; b. 1-15 June 1973; c. 16-30 June 

 1973; d. 1-15 July 1973; e. 16-31 July 1973. 



805 



