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Nitrogen Fixation is an Important Nutrient Source in the Arctic Ocean

May 23, 2018

Atmosphere and Ocean Research Institute,
The University of Tokyo

A research team led by Dr. Takuhei Shiozaki at the Japan Agency for Marine-Earth Science and Technology (JAMSTEC) has determined that extensive nitrogen fixation occurs in the western Arctic Ocean without a clear correlation to depth (light intensity) or nitrate concentration. Such light-independent nitrogen fixation seems to be caused by non-photosynthetic bacteria, suggesting that nitrogen fixation occurs even below the observed depth (100 m) and during the winter dark period. This research project was carried out in collaboration with the Atmosphere and Ocean Research Institute at The University of Tokyo.

Diazotroph community structure and the role of nitrogen fixation in the nitrogen cycle in the Chukchi Sea (western Arctic Ocean), Limnology and Oceanographyこのリンクは別ウィンドウで開きます


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