There is some difference in longline gear construction between the north, where apear- 

 fishes are the principal catch, and the south, where the fishery is primarily for tunas. In the 

 north the gear principally designed to catch spearfishes has mainlines 480 fathoms in length with 

 twelve 8-fathom branch lines at 40-fathom intervals (with 20 fathoms of mainline between the 

 last branch line and the end of the basket on each end). The tip of each branch line is provided 

 with a 2-fathom s ekiyama , 1 fathom of wire, and on the wire is a round 3.8-inch hook. Every 

 two branch linesThere is a 7-fathom float line, a total of 4 per basket. At the top of each float 

 line a 3-foot long paulownia log is attached as a float. The nnaterial for the line is 360-thread 

 No. 20 cotton. 



In the south, where the fishery is primarily for tunas, the mainline is 390 fathoms long 

 with nine I2-fathom branch lines at 40-fathom intervals (with 25 fathoms at the, ends so that there 

 are 50 fathoms between the first branch lines of adjacent baskets, the float lines being attached 

 in the middle). 



The sekiyama is 4 fathoms long, the wire 2 fathoms, and the hook is similar to that 

 described above. Every three branch lines an 8-fathom float line is attached, so that there are 

 3 per basket. For the floats at the ends of the baskets, glass balls 8 inches in diameter are used, 

 the other floats being paulownia billets. The material for the mainline and branch lines is 160- 

 thread No. 10 cotton, while the brzinch lines are 360-thread No. 20 cotton. 



Each of these units is actually stored in a basket. Depending on the size of the vessel 

 the amount of gear set varies, but the number carried by a single boat will be 50-100 baskets. 

 These baskets are fastened together while being set and the floats are attached so that the line 

 hangs down below the surface of the water. 



The majority of the boats based at Suo and Keelung are engaged in day fishing, but the 

 large boats sometimes make cruises of about a week's duration. The boats based at Takao make 

 cruises of about 2 weeks ordinarily. 



C. Other Fisheries 



The harpoon fishery and the longline fishery make up the greater part of the spearfish 

 fisheries, however, other Formosan fisheries which take spearfishes can be cited, such as the 

 trap-net fishery and the trolling fishery. However, compared with the two mentioned earlier, 

 their production is extremely snnall. 



(a) Trap-net fishery 



From April to the first part of July very dense schools of sodagatsuwo / Auxis sp. / 

 migrate into the coastal waters of eastern Taiwan. A large number of set-nets are placed every- 

 where along the coast to capture these fish. In these set-nets, besides the Auxis, other miscella- 

 neous species are caught, including quite a few cybiids and spearfishes. According to the fishing 

 statistics for 1934, the amount of spearfishes captured by set-nets for the whole island was 

 9, 776 kin ijz, 9_14 lbs._/ with a value of 1, 639 yen. The catch for the Taito and Karenko districts 

 was 9, 426 kin ^12, 442 lbs. / valued at 1, 551 yen and the majority of the fish were sailfish. 



(b) Trolling fishery and others 



Besides the set-net fishery, spearfishes are caught in other miscellaneous fisheries, 

 according to the fishery statistics for 1934 to the amount of about 50,000 kin /^66, 000 lbs._/with 

 a value of around 9, 000 yen throughout the whole island. It nnust be stated that this is a very 

 small amount in comparison with the vailue of the catches of 470, 000 yen for the harpoon fishery, 

 and 910, 000 yen for the longline fishery. 



D. Handling and Marketing of the Catch 



In the longline and harpoon fisheries based at Keelung, Suo, and Shinko the fishing grounds 

 are very close to the bases, and therefore the majority of the boats leave port before dawn for 



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