深層水汲み上げによる海洋肥沃化実験-拓海プロジェクト(THE SEA FERTILIZATION EXPERIMENT BY UPWELLING DEEP OCEAN WATER TAKUMI PROJECT)
- 標題
- 深層水汲み上げによる海洋肥沃化実験-拓海プロジェクト(THE SEA FERTILIZATION EXPERIMENT BY UPWELLING DEEP OCEAN WATER TAKUMI PROJECT)
- 作者
- 大内 一之(Kazuyuki OUCHI)
- 文件屬性
- 日本研究
- 知識分類
- 水產養殖
- 出版年
- 2007
- 刊名
- 海洋開発論文集
- 卷
- 23
- 頁
- P 11-16
- 點閱數
- 2522
摘要
The research and development project to create the fishing ground in the open ocean by upwelling Deep Ocean Water (DOW) and discharging it in the euphotic layer where photosynthesis can be done with DOW's rich nutrient salt has been carried out since April 2000, sponsored by Japanese Government Fisheries Agency and Marino-Forum 21. In the open ocean, there are no successful means to meet such a mission, so far. Therefore, the focus of the project is a creation and proposition of the concept of the ocean nutrient enhancer nicknamed TAKUMI to contribute for increasing primary production and fish production at the open sea. The requisite technologies such as a density current generator, a spar type floating structure, a steel riser pipe, a set-up way of upending, etc. is discussed and integrated to create the concept of TAKUMI, whose principal particulars are the 100, 000m3/day DOW upwelling capacity, the about 1, 700tons displacement, and the 100KW Diesel engine. In May 2003, TAKUMI was set-up at the point of 1, 000m depth in Sagami Bay, and has been continuing experiment of DOW upwelling.