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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第62巻 第3号 >
Fishery Income Fluctuation with Changing Social Situation and Selecting Fishing Ground, in the Japanese Coastal Squid Jigging Fishery (1975-2008)
| Title: | Fishery Income Fluctuation with Changing Social Situation and Selecting Fishing Ground, in the Japanese Coastal Squid Jigging Fishery (1975-2008) |
| Authors: | Tamaru, Osamu Browse this author | | Miyashita, Kazushi Browse this author →KAKEN DB | | Kimura, Nobuo Browse this author →KAKEN DB | | Fujimori, Yasuzumi Browse this author →KAKEN DB | | Takahara, Hideo Browse this author | | Miura, Teisuke Browse this author →KAKEN DB |
| Keywords: | Squid jigging fishery | | Income fluctuation | | Selecting fishing ground | | Social situation |
| Issue Date: | 14-Dec-2012 |
| Publisher: | 北海道大学大学院水産科学研究院 |
| Journal Title: | 北海道大学水産科学研究彙報 |
| Journal Title(alt): | Bulletin of Fisheries Sciences, Hokkaido University |
| Volume: | 62 |
| Issue: | 3 |
| Start Page: | 75 |
| End Page: | 82 |
| Abstract: | In recent years in Japan, falling fish prices and rising fuel costs have worsened the economic conditions for many fisheries-dependent households. Many fishermen select the fishing ground in which they anticipate they can maximize their total catch, even when such grounds are far from their home harbor. As a result, fishermen have the potential to select a fishing ground in which they do not maximize their income. Especially the Japanese coastal squid jigging fishermen need to develop energy-saving squid jigging fishery practices, because of the high fuel consumption in comparison to other fisheries. By using the Management Simulation Method, we show that income fluctuations are caused by various factors. We used social factors and fishing ground factors in this simulation. According to the simulation results, small changes in social and fishing ground situations can result in changes in selection of the optimal fishing grounds. We conclude that the selection of fishing grounds by fishermen based only on their own knowledge and/or intuition might not result in choices that maximize their income, and it is necessary to develop objective methods to choose the fishing ground in which they can maximize their income. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/51116 |
| Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第62巻 第3号
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