Sustainability Report 2019;
Sampling of glacial meltwater
Shin SUGIYAMA, Professor, Institute of Low Temperature Science
Naoya KANNA, Doctoral research fellow, Arctic Research Center
A joint research group of the Arctic Research Center, the Institute of Low Temperature Science and the Faculty of Fisheries Sciences at Hokkaido University has found that upwellings (plumes) from glacial melt water in Greenland function as a pump to lift out nutrient salt from the medium layer (200 m in depth) of a fiord. They also showed that nutrient salt delivered to the surface spread horizontally in the subsurface (10 ‒ 50 cm in depth) and caused the growth of phytoplankton just above the plumes. Previous research has proved the role of meltwater in basic pro duction (organic production through photosynthesis) in this fiord. In the future, it will be important to comprehensively understand how the ecosystem created meltwater.
Numeral creatures gather in the sea in front of a glacier