Development of monitoring method for ice algae without collecting sea ice core

2016 Fiscal Year Final Research Report

• Project/Area Number: 26550015
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Environmental dynamic analysis
• Research Institution: Tokyo University of Agriculture
• Principal Investigator: Asakuma Koji 東京農業大学, 生物産業学部, 助教 (60349818)
• Project Period (FY): 2014-04-01 – 2017-03-31
• Keywords: 極域観測 / アイスアルジー / リモートセンシング

Outline of Final Research Achievements

The ice algae live in the sea ice in the polar or subarctic zone has much higher biomass than the phytoplankton live in the seawater, but in order to estimate the amount of it, it is necessary to collect the sea ice core and its collection in extreme cold environments is hard work. In this study, we developed a device for measuring the chlorophyll a concentration from an amount of fluorescence value by fluorescing ice algae in a photic layer in a sea ice using 405 nm blue laser. It was confirmed that the fluorescence value of the ice core collected at Lagoon Saroma-ko obtained by this device and the actual concentration of chlorophyll a measured by melting the same ice core similar well. This system can be made compact and lightweight, it is possible to develop to unmanned observation such as flight drone, and it can be expected to make a great contribution to clear of the ecosystem in the polar region.

Free Research Field

リモートセンシング