摘要：The average annual distributions of the purse-seine catches of yellowfin, skipjack, and bigeye, by set type, in the EPO during 1997-
2006, are shown in Figures A-1a, A-2a, and A-3a, and preliminary estimates for 2007 are shown in Figures A-1b, A-2b, and A-3b.
The catch of yellowfin in 2007, as in 2006, was significantly less than the average of 1997-2006. Yellowfin catches from dolphin
sets in the Northern areas off Mexico and Central America have been significantly lower for the past several years. The yellowfin
catch off South America in 2007 was also less than the average of 1997-2006. The skipjack catch in 2007 was less than the average
of 1997-2006. Significant catches of skipjack were made throughout the year from about 5¡ãN to 15¡ãS, with large catches recorded
in the inshore areas off South America. As had been the case during 2004-2006, the catches of skipjack in the inshore areas off
Mexico were greater, possibly due to changes in fishing strategy due to poor yellowfin fishing. The bigeye catch in 2007 was less
than that of 2006, but greater than the 1997-2006 average. Bigeye are not often caught north of about 7¡ãN. The catches of bigeye
have decreased in the inshore areas off South America for several years. With the development of the fishery for tunas associated
with FADs, the relative importance of the inshore areas has decreased, while that of the offshore areas has increased. Most of the
bigeye catches are taken in sets on FADs between 5¡ãN and 5¡ãS.
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