2016 年 52 巻 3 号 p. 227-231
The first author has been operating a squid jig fishing in Tsushima Island, Nagasaki for approximately 30 years since 1980's. Squid jigging fishery has experienced the stagnant squid prices after the asset bubble burst, the lighting power competition among the boats to increase catch amounts and a rise in fossil fuel prices during those 30 years. Consequently, the business performance of squid jigging fishery has deteriorated. We present the fishermenʼs perspective on how the squid jigging fishery should survive in the present condition; 1. combination of fishing practices that operate energy intensive squid jig fishing and energy saving (but labor intensive) longline fishing by considering the cost and benefit properly, and 2. rationalization of squid jig fishing through recent technical improvement such as a use of scanning-sonar and an introduction of fishing lamp consisting of low energy light emitting diodes.