イカ釣漁業へのエネルギ-投入量の歴年変化〔英文〕

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概要

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• Energy input for squid angling in Japan was examined using census data, i.e., Economy of Fisheries Establishments. The fuel oil consumption per catch was little dependent either on the tonnage of boats or on the location of fishing area. Fuel oil consumption per catch, which was almost constant at 0.2l/kg-catch in 1950's, and was 0.31/kg-catch in 1960's made a rise in 1970. The rise continued until it reached a maximum of 2l/kg-catch in around 1978, after that a gradual decrease was observed. The rise was little affected by the skyrocketing rise of oil prices but was more related to the sudden drop of catch per fishing day per boat which took place in 1970. During this period of time, squid angling operated with a 50-100t boat increased greatly fishing days per voyage (five-fold) and fuel oil consumption per fishing day (twice). The increase in fuel oil consumption is ascribed to the increase of power of fishing lamps.

• 日本水産學會の論文

著者

• Akizawa Hayao

  Department of Marine Science and Technology, Tokyo University of Fisheries

• 佐藤 要

  Department of Marine Science and Technology, Tokyo University of Fisheries

• 渡辺 尚彦

  Department of Food Science and Technology, Tokyo University of Fisheries

• 石川 雅紀

  Department of Food Science and Technology, Tokyo University of Fisheries

• Ishikawa Masanobu

  Department of Food Science and Technology, Tokyo University of Fisheries

関連論文

• イカ釣漁業へのエネルギ-投入量の歴年変化〔英文〕

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