LIST OF ILLUSTRATIONS 

 Figure Page 



Fronti«piece: Hauling and coiling mainline with the Japanese linehauler, 



1. Locations of fishing stations, Cavalieri cruise 1, Manning cruises 



12 and 1 3, and Snnith cruise 18. 3 



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2. Temperature section and yellowfin tuna catch along 120 W. 



longitude, October -November 1952 5 



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3. Temperature section and yellowfin tuna catch along 130 W. 



longitude, November 1952 6 



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4. Temperature section and yellowfin tuna catch along 140 W. 



longitude, August-September 1952 8 



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5. Temperature section and yellowfin tuna catch along 150 W. 



longitude, August 1952 9 



6. Temperature section and yellowfin tuna catch along 150 W. 



longitude, October -November 1952 10 



7. Temperature section ajid yellowfin tuna catch along 169 W. 



longitude, November 1952 12 



8. Comparison between the catch rates of Japanese commercial sets 



and POFI exploratory sets 14 



9. Mean lengths of Seimples of longline -caught yellowfin plotted 



against longitude of capture 17 



10. Mean lengths of sannples of longline -caught bigeye tuna plotted 



against the longitude of capture 17 



11. Length frequencies of male and female yellowfin tuna from three 

 regions of the equatorial Pacific ^^ 



12. A series of depth recorder traces of the main line, station 27, 



Smith cruise 18 21 



