296 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 





YELLOWFIN-I 



YELLOWFIN-2 



i: 



tg 



YELLOWFIN-I 



YELLOWFIN-2 



20 40 600 20 40 €00 20 40 600 20 40 



PERCENT OCCURRENCE, YF-I PERCENT OCCURRENCE . YF-2 PERCENT OCCURRENCE. BE PERCENT OCCURRENCE. SJ 



PERCENT OCCURRENCE . aL 



FIGURE 22. — Percentage occun-ence of different taxonomie groups, listed In table 15, in the catches of the Isaacs-Kidd 

 trawls and in tuna stomach contents. YF-1, yellowfln tuna, both surface dwelling and deep swimming ; captured 

 by live-bait fishing, surface trolling, and longline fishing 'data from Reintjes and King, 1953). YF-2, yellowfln 

 tuna, deep swimming; captured by longline fishing (data from King and Ikehara, 19.56). BE, bigeye tuna, deep 

 swimming; captured b.v longline fishing (data from King and Ikehara, 1956). SJ, skip.jack tuna, both surface 

 dwelling and deep swimming, captured by live-bait fishing, surface trolling, and longline fishing ( uuijublished 

 data; see text, footnotes 3 and 4). AL, albacore tuna, both surface dwelling and deep swimming; captured by 

 trolling and gill net and longline fishing (data from Iversen, in press). 



Table 17. — Percentage occurrence of all items identified in 10 percent or more of either the trawl collections or of tuna 



stomach contents 



