Hindcasting proved this technique to be validfor ciated with the dynamics of the circulation sys- 



an 8-year period. In addition the magnitude of tem in Hawaiian waters, it is not surprising that 



the catch has been successfully predicted for 3 an index based on the first derivative curve of 



years. Since fishing success seemsto beasso- the temperature has been the most reliable. 



Background Papers 

 Reference: Papers No. 



VII - 1. King, J. E., and R. T. B. Iversen - Midwater trawling for forage organisms 

 in the central Pacific 



2. Otsu, T. , and R. J. Hansen - Sexual maturity and spawning of the albacore in 



the central South Pacific Ocean 



3. Legand, M. - Length, sex ratio, and sexual maturity of yellowfin tunas at New 



Caledonia (Part 1 of Rapport Scientifique No. 11 of the Centre d'Oceanographie, 

 Institut Francais d'Oceanie). (In French) 



4. Legand, M. , and R. Desrosieres - Preliminary investigation of the stomach 



contents of yellowfin tuna of the coasts of New Caledonia (Part 2 of Rapport 

 Scientifique No. 11 of the Centre d'Oceanographie, Institut Francais d'Oceanie). 

 (In French) 



5. Suda, A. - Comparison of abundance between albacore and bigeye in the north- 



west Pacific 



6. Yabe, H. , and S. Ueyanagi - Contributions to the study of the early life history 



of the tunas 



7. Yabuta, Y. , and M. Yukinawa - Age and growth of yellowfin tuna 



8. Kikawa, S. - Studies on the spawning activity of the Pacific tunas Parathunnus 



mebachi and Neothunnus macropterus by the gonad index examination 



9. Matsumoto, W. M. -Identification of larvae of four species of tuna from the 



Indo-Pacific region. I. 



10. Iversen, R. T. B. - Food of albacore tuna, Thunnus germo (Lacepede), in the 



central and northeastern Pacific 



11. Uchida, R. N. , and T. Otsu - Analysis of sizes of albacore occurring in various 



Pacific fisheries - a preliminary report 



12. Bell, R. R. - The age composition of the California Pacific albacore catch 



13. Watson, Margaret E. , and F. J. Mather, III - Species identification of juvenile 



tunas (genus Thunnus ) from the Straits of Messina, Northwestern Atlantic, and 

 the Gulf of Mexico 



14. Legand, M. , and B. Wauthy - Presumed importance of Alepisaurus sp. in the 



biological cycle of longline caught tunas in the neighborhood of New Caledonia 

 (In French) 



15. Legand, M. - Stomach contents of albacores and yellowfins captured by long- 



line by Orsom III (In French) 



16. Legand, M. -Size, sex ratio, and seasonal cycle of maturation of albacore west 



of New Caledonia (In French) 



These contributions were not discussed course of the six discussion groups, 



as a unit, but were drawn upon freely in the 



