 
 
- Yamaguchi A, Umezawa Y, Takeda S., Ishizaka J., Matsuoka K., Chang J., Zhang J. "Assessment of phosphorus stress for phytoplankton using alkaline phosphatase activity in the East China Sea" (Submitted)
- Yamaguchi A, Umezawa Y, Wada M, Sayama M "Potential contribution of microalgae to phosphorus cycling in tidal flat sediments during winter." Plankton & Benthos Research 10(1):1-10, 2015
- Umezawa Y., A. Yamaguchi, Ishizaka, J., Hasegawa, T., Yoshimizu, C., Tayasu, I., Yoshimur, H., Morii, Y., Aoshima, T., and Yamawaki, N.: Seasonal shifts in the contributions of the Changjiang River and the Kuroshio Current to nitrate dynamics in the continental shelf of the northern East China Sea based on a nitrate dual isotopic composition approach, Biogeosciences, 11, 1297-1317, doi:10.5194/bg-11-1297-2014, (2014)(0)
- 塩川麻保, 山口聖, 梅澤有"有明海西岸域への地下水由来の栄養塩供給量の評価"沿岸海洋研究, 50(2): 85-95, (2013)(0)⇒2012-2013年度速水論文賞受賞論文
- 2013年 : Best Presentation Award 9th International Conference on the Marine Biodiversity and Environmental Fisheries Sciences of the East China Sea, Keelung, Taiwan
- 2014年：日本海洋学会、沿岸海洋研究部会 「速水論文賞」 受賞
- 2014年 : 日本財団笹川研究助成： 「干潟堆積物境界層における生物細胞内リンが駆動するリン循環に関する研究」）
- Yamaguchi A, Umezawa Y*, Takeda S, Ishizaka J, Chang J "The availability of dissolved organic phosphorus in the northeast of the East China Sea" The 7th PEACE Ocean Science Workshop, Qingdao, China, Oct.. 2014
- Yamaguchi A, Umezawa Y, Takeda S, Matsuoka, K, Chang J "Dissolved Phosphorus Pool and Alkaline Phosphatase Activity in the East China sea" Ocean Sciences Meeting, Honolulu, USA, Feb. 2014
- Yamaguchi A, Umezawa Y, Takeda S, Chang J "Dissolved phosphorus pool and alkaline phosphatase activity in the northern East China Sea" 9th International Conference on the Marine Biodiversity and Environmental Fisheries Sciences of the East China Sea, Keelung, Taiwan, Sept. 2013
- 山口聖・梅澤有・牟田直樹 "東シナ海における溶存無機・有機リンの分布とアルカリフォスファターゼ活性の関係" 日本海洋学会, 品川、2013年3月
- Yamaguchi A, Sayama M, Wada M, Umezawa Y "Potential contribution of microalgae to phosphorus cycling in the sediment at intertidal flat" The 1st Asian Marine Biology Symposium, Phuket, Thailand, Dec. 2012
- Yamaguchi A, Sayama M, Wada M, Takano Y, Umezawa Y "Potential Contribution of Polyphosphate Accumulating Organisms (PAOs) to Phosphorus Cycling in the Sediment at Intertidal Flat" ASLO Aquatic Sciences Meeting, Shiga, Japan, July 2012
- Umezawa Y, Yamaguchi A, Ishizaka J, Hasegawa T, Yamawaki N, Morii Y and Yoshimura H "Seasonal shift of the contribution of Changjiang River and Kuroshio water to nutrient dynamics at continental shelf of East China Sea" Ocean Science Meeting, Salt Lake City, USA, Feb 2012.
- Yamaguchi A, Wada M, Umezawa Y “Potential contribution of polyphosphate accumulating organisms (PAOs) to phosphorus cycling in the sediments at intertidal flat” Proceedings of the 12th Joint International Symposium between Pukyong National University and Nagasaki University, Busan, Korea, Oct 2011.
- 山口聖, 左山幹雄, 和田実, 梅澤有 “堆積物境界層のリン循環における生物寄与の評価” 日本海洋学会秋季大会, 春日, 福岡, 2011年9月
- Yamaguchi A, Wada M, Umezawa Y “Potential contribution of Polyphosphate accumulating Organisms (PAOs) to phosphorus cycling at intertidal mud flat in Ariake bay” The 11th Joint International symposium between Pukyong National University and Nagasaki University, Nagasaki, Japan, Oct 2010.
- 梅澤 有、塩川麻保、山口聖、小野寺真一、清水裕太、安元純、林美鶴、牛原康博 "222Rnを用いた大阪湾への地下水流入量の評価" 日本海洋学会春季大会、品川、東京、2010年3月
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