However, I do not think of these charts of the fishing conditions as final 

 or as the best that can be achieved. On the contrary, they are only a 

 beginning and therefore are quite inadequate. I intend to take these charts 

 as a foundation and, hereafter, to make up charts of the fishing conditions 

 each year, compare and review thenn, and in from 3 to 5 years to again 

 bring out charts of the average year's fishing conditions in amplified and 

 perfected form. 



My reasons for thinking up a project like this were in general as 

 follows. In the first place, if we look at the operating conditions of the 

 tuna longline fishery, which is the main part of the tuna fishery, 



1. At the present time, there is absolutely no knowledge or means 

 by which to tell, as the vessel is running along, where one may set the 

 lines and be certain of catching fish. 



2. Once a place is chosen and the line is set, it becomes, in the 

 final analysis, a matter of waiting for the fish to bite on the hooks, and 

 as long as ther^ is no positive way of making the fish congregate in the 

 vicinity of the lines and bite on the hooks, there is no particular skill or 

 technique involved in the operation. 



3. The selection of fishing grounds is made, as a general rule, 

 on the basis of fishermen's experience, or often by picking up on the 

 radio information on the success which other fishing vessels are having. 



4. Consequently, catching tuna on longlines, at least under present 

 conditions, may be thought of as a problem in probabilities. I do not think 

 that any special inspiration, talent, or skill is involved in it. 



In the second place, as far as our mission and objectives are 

 concerned, 



5. If it were possible to plot the movements of fishing grounds as 

 the nriovements of typhoons are plotted on weather charts, it would be 

 possible 



6. To fill in the data and at the same tinne 



a. To evaluate the character of the population. 



b. To clarify its relations to its environment. 



c. To grasp the seasonal changes in fishing conditions and 

 fishing grounds. 



