200 meters o Furthermore, -n^en the catch is good in the winter 

 fishery, the vertical difference in water temperature is slight, 

 being on the order of 1° between the surface and the 100 meter 

 level, and 3° at the most between the surface and iiUU meters,) 



Notes; 



(1) At the time of the second cruise, there were many- 

 skipjack schools up to 300 miles east of Kinkazan, 

 but there were no schools to be found from 500 to 

 1,000 miles off the coasto About 1,300 miles out 

 Cl65°55»Eo, U0°5U'No) a large school of skipjack 

 accompanied by birds was met with, and in US minutes 

 in the evening, U,000 fish weighing 7 pounds apiece 

 was taken (by about 15 men)„ Water temperatures at 

 this time showed a great vertical differential, being 

 19oU at the surface, lloU at 50 meters, 10ol° at 

 100 meters, 8 at 200 meters, and 5° at 500 meters, 



(2) On the same cruise, a large school of albacore was 

 encountered at 177 28»Wo, 29°ll»No, and in 1 hour at 

 simset, 283 large albacore (largest 60, smallest 35, 

 average ii5 pounds) were taken by only 7 teams of 

 fishermen, 



(3) The fishing gear used on this voyage had, per basket, 

 2ii0 fathoms of main line, 10 branch lines (two of them 

 of 15 fathoms and eight of 7 fathoms), a float line 



20 fathoms in length, and a glass float attached in 

 the middle of the basket of line. 



To summarize the foregoing, at this season schools of 

 albacore have not been seen west of longitude 177°E, , but 

 albacore have been taken to the eastward from the latter 

 part of May to the middle of August, It is expected that 

 the farther east one goes, the better the fishing will be, 

 particularly to the north and east of Midway I,, where it 

 is expected that there will be schools of large albacoreo In 

 areas in the vicinity of this island, where water ten^jeratures 

 were about 26 , there were a great many big-eyed tuna and skip- 

 jack. Ihe skipjack did not bite well, perhaps because of an 

 abundance of natural feed, but the big-eyed tuna appeared 

 to be rather promising. 



To summarize, in the vicinity of the winter offshore 

 fishing grounds, fish of the same type as the winter albacore 

 are still present from the latter part of May to June, Around 

 the middle of August in the vicinity of Midway Island, with 



