d. To grasp the changes in fishing conditions in given 

 fishing grounds from year to year. 



7. It may be though that if these things were accurately grasped 

 as phenomena, principles applicable to these phenomena would automati- 

 cally be established and would provide a path leading to the objective of 

 the study of the resource. 



In the third place, in such a research process, it is thought that 



8. The information and data assembled here can certainly serve 

 to guide the operations of commercial fishermen and can be useful as a 

 basis for business operations. On various levels they can probably con- 

 tribute to the stabilization of the fishery. Furthermore, they will probably 

 reveal the fishing grounds on which it is possible for various types of 

 vessels of various characteristics to make a profit and will thus serve 



as a basic and valuable reference in the establishment of government 

 policies and administrative measures. 



9. It is the responsibility of the fishery research laboratories, 

 which are industrial research organizations attached to administrative 

 bureaus, to have at all tinnes their information and data assembled up 

 to date ajid to be always ready to answer the questions of the adminis- 

 trative authority and to guide the operations of private enterprise. As 

 for the question of the accuracy and reliability of the information and 

 the data, it is unavoidable, of course, that they cannot be expected to 

 be perfect, but they should be the best possible at the particular stage 

 of the investigations. 



It goes without saying that this type of undertaking cannot ever 

 approach its goal using only the data collected by a small number of 

 experimental and research vessels. The number of fishing vessels 

 which show a correct understanding of our work and which supply us 

 with reports of their operations is slowly but steadily increasing, and 

 this is extremely heartening and strongly encouraging to us. It is our 

 hope that not only will the boats which have been supplying us data hitherto 

 continue doing so, but that all tuna longline vessels will proffer accurate 

 reports of their operations. I believe that the objectives listed above can 

 be attained only if the researchers and the commercial operators not only 

 cooperate but become a single, harmonious whole. If it is possible to 

 bring about a situation where there is a division of labor under which the 

 commercial vessels all turn in accurate data on the fishing conditions 

 each time they make a cruise, while the research vessels take over the 

 field of study of ecology and oceanography, which is impossible for com- 

 mercial vessels, and also that of testing the theories to which the results 



