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Environment/Energy (Climate change)

Principal Investigator (Affiliation)
  • SDGs13
  • SDGs14
Prof.
KAYANNE Hajime
(Graduate School of Science, The University of Tokyo)
Research Institutions in Japan The University of Tokyo / National Institute for Environmental Studies (NIES) / Ibaraki University / University of the Ryukyus
Research Institutions in Tuvalu Tuvalu’s Department of Environment / Deparment of Fisheries / Department of Lands and Survey
Adoption fiscal year FY2008
Research Period 5 Years
ODA Recipient Country Tuvalu
General Description of the Research Project

Rise in sea level and loss of creatures that produce sand
Tuvalu is at risk of submerging due to rising sea levels caused by the effects of climate change. The natural environment has been degraded by population increase and economic development, resulting in progressive deterioration of the coral reefs and a drop in the capacity of the ecosystem that creates the deposits that constitute Tuvalu’s native soil. As a result, there is a need to understand the mechanism that forms and maintains the island and consider the ecosystem, and then devise policies to increase the island’s restorative capabilities. These policies can be applied not only to Tuvalu but to atolls throughout the world, and to the islands off the coast of the Japanese mainland.

Development of technologies to aid coral and foraminifera propagation
A study of the topography, ecosystem etc. of Funafuti Atoll was conducted, and a map was prepared showing the distribution of coral and foraminifera and the production, transportation and sedimentation of sand by these organisms. In addition, experiments to raise and propagate foraminifera were conducted successfully. This study will aid in efforts to maintain the national territory while restoring the ecosystem, and in formulating measures to combat coastal erosion and coastal management plans.

Photo gallery
Foraminifera baby

Asexual reproduction by foraminifera (common name: star sand)

Shoreline survey using Global Positioning System (GPS)

Surveying the topography of the shallow seafloor near the shoreline with GPS in hand. This was an enthusiastic collaborative effort by a young Japanese researcher and a Tuvalan counterpart, chest-deep in the sea.

The Japanese principal investigator explained the system for multiplying the living foraminifera to the Prime Minister of Tuvalu,

The Japanese principal investigator explained the system for multiplying the living foraminifera to the Prime Minister of Tuvalu,

Research Project Web site
Press Release July 15, 2014
Reports
Links SATREPS Project Case Study
“What we can learn from international research collaborations: Global environmental issues and Japan's role in science and technology”

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