検索画面に戻る Go Research

(540Kb)

[Ｆ−５.３.３　A Study on the Conservation Mechanism of Biodiversity in the Coral Reef by Archiving of Under-Water Images]


[Contact person]

      Akira Harashima
      Head
      Marine Environment Research Team
      Global Environment Research Group, National Institute for
      Environmental Studies, Environment Agency, Japan
      16-2 Onogawa, Tsukuba, Ibaraki 305-0053, Japan
      Phone: +81-298-50-2508, Fax: +81-298-50-2569
      E-mail: harashim@nies.go.jp


[Total Budget for FY1997-1999]

　17,290,000 Yen
　(FY 1999: 5,704,000 Yen )

［Abstract］

　Growth of coral reef generates the secondary habitats and contributes to the sustaining of the biodiversity. We developed a method to make stereoscopic image archive to record and analyze this process. The method using a pair of under-water still cameras were applied on the permanent transects around Kuroshima, Yaeyama Islands. Another method, using a stereoscopic video camera was adopted to cover an area of some extent in Urasoko Bay of Ishigaki Island. Also, the method to process the stereo-pairs on PC was developed. These stereoscopic images effectively showed the importance of 3-dimensional spatial factors acting on the growth, competition, destruction and deterioration such as bleaching of corals colonies.


［Key Words］

　Coral Reef, Biodiveristy, Stereo Image, Archive, Photogrammetry