average of effort as used in regression are not in the Eastern Tropical Pacific Ocean," hiter- 



well known. Finally, the technique is not as Amer. Trop. Ttnia Commission. Bull. 2(6) 1957, 



direct a test for adjustment of the population pp. 245-285 and Gulland, M. Manual of Methods 



to effort as the one used in this paper (see for Fish Stock Assessments. Part 1. Fish 



below). See Schaefer, M. B. "A Study of the Population Analysis. FAO Fish Technical 



Dynamics of the Fishery for Yellowfin Tuna Paper, 1968, FRs/T40 (Rev. 2), 97 pp. 



91 



