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環オホーツクにおける鉄を中心とした物質循環研究
西岡, 純;三寺, 史夫;大島, 慶一郎;江淵, 直人;白岩, 孝行;中村, 知裕;的場, 澄人;中塚, 武;安田, 一郎;村山, 愛子;小野, 数也;篠原, 琴乃;若土, 正曉
Permalink : http://hdl.handle.net/2115/91810
JaLCDOI : 10.14943/lowtemsci.82.69
KEYWORDS : 環オホーツク海域;生物地球化学的循環;鉄(Fe);植物プランクトン;Pan-Okhotsk region;Biogeochemical cycle;Iron;Phytoplankton
Abstract
環オホーツク観測研究センターでは，発足後の20年間に，北太平洋およびオホーツク海やベーリング海を含む環オホーツク海域を対象とした海洋循環・物質循環の研究を精力的に進めてきた．この海域を理解するにはデータの空白域であるロシアの排他的経済水域の観測が不可欠であり，同センターではロシア極東海洋気象学研究所との共同研究を積極的に推進してきた．結果，この海域の海洋循環・物質循環の知見は飛躍的に進み，北太平洋亜寒帯域における微量元素である鉄(Fe)を中心とした栄養物質供給プロセスと生物生産を生み出す仕組みについて鍵となる知見を明らかにしてきた．本稿では，環オホーツク観測研究センター発足後の20年間で進められてきた環オホーツク海域における海洋循環・物質循環研究を概観する．
Over the past 20 years, the Pan-Okhotsk Research Center has actively studied ocean circulation and material circulation in the North Pacific and its marginal seas, including the Sea of Okhotsk and the Bering Sea. Observation of the Russian EEZ area was essential to understanding this area, the Pan-Okhotsk Research Center had actively promoted joint research expeditions with the Far Eastern Hydrometeorological Research Institute, Russia. During this period, our knowledge of ocean circulation and biogeochemistry in the Pan-Okhotsk region has advanced dramatically, and we have clarified key findings regarding nutrient and iron supply processes that fuel biological production in the North Pacific. This paper provides an overview of the study which conducted over the past 20 years.
Over the past 20 years, the Pan-Okhotsk Research Center has actively studied ocean circulation and material circulation in the North Pacific and its marginal seas, including the Sea of Okhotsk and the Bering Sea. Observation of the Russian EEZ area was essential to understanding this area, the Pan-Okhotsk Research Center had actively promoted joint research expeditions with the Far Eastern Hydrometeorological Research Institute, Russia. During this period, our knowledge of ocean circulation and biogeochemistry in the Pan-Okhotsk region has advanced dramatically, and we have clarified key findings regarding nutrient and iron supply processes that fuel biological production in the North Pacific. This paper provides an overview of the study which conducted over the past 20 years.
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