396 



KAM.XKICHI KISHINOÜYE : 



p;U"fc (»f Oliv empii'e was introduced to other places. Generally the reverse is 

 ti'uo, i. e. implements or methods invented in the central or western parts have 

 travelled to the northeast. 



Neai'ly all kinds of fishing apparatus ai"e used for tlie captiu'e of scombroid 

 fishes, except casting nets and di'edges. As many kinds of these fishes form 

 large schools, the appai'atus for theh- capture is generally lai-ge ; but its height 

 is mostly under 60 m. 



As most scombroid fishes are swift swimmers, fishermen tij to retard their 

 progress by scattering tole baits. These fishes are enticed to the aiiificial 

 baits in motion. The mackerel is attracted to light at night, Acaixlhocyhiarii 

 to the shade of moored bundles of bamboo-stems or branches of Pavloionia 

 impericdis. Fishing -ivith ttift-nets is f)Opular, but not good in cleai" waters, 

 where other kiuds of nets are also not suitable. In such grounds hook and 

 line are the best means for catching. 



Though the scombroid fishes are very widely distiibuted, theh- food is very 

 plentiful, and thsh' immatm'e specimens are not molested by men, yet they 

 become gradually scai'ce iu old fishing gi-oimds. Generally the scombroid fishes 

 do not stay many days in the same place. It seems wise to change the fisliing 

 ground fiMiii time to time, not adliering to the same loctility. Many imfortunate 

 accidents occm- iu this hazai'dous occupation, as the fishing giwmds are 

 rough, lying generally very fai' fi'om the coast. Morejver the fishing apparatus 

 is hü'ge, and the cost of the individual fish high, sj fishermen try to haul iu the 

 whole apparatus even iu case of sudden storms, and thus often fail to return 

 to safety iu good time. For the future development of the fishery of the 

 scombroid fishes, it is desii'able to build swift, sea-going boa'is, to discover good 

 means of attivictiug these fishes, and to provide a suitable erinipment for 

 preserving these fishes, as they axe much more perish' ible than othei- kinds. 

 Fishermen detect the presence of these fishes by theh* Icapmg out of the water, 

 by the movements of birds, tlie colom* of the water, or pecuHai' waves ov 

 movements of the water at the sm-face of the sea. They use the troll hne to 

 detect the presence of these fishes in deep sti'ata of watar. 



Hook and Line. 

 In the mackerel fishery- there are five kinds of hook and line fishery' — rod 



