Article
Environmental Sciences
Qingwei Ma, Ying Chen, Fanghui Wang, Haowen Li
Summary: The atmospheric deposition of nutrients can significantly impact marine phytoplankton growth, with the addition of nitrogen and phosphorus leading to a substantial increase in chlorophyll a concentrations. However, aerosol treatments showed lower chlorophyll a increments due to high nitrogen-to-phosphorus ratios. Dry flux of NH4+ and NO3- was found to be a strong predictor for springtime chlorophyll a in the ECS, indicating the importance of atmospheric deposition as a nitrogen source for supporting primary production.
Article
Environmental Sciences
Syuichi Itahashi, Kentaro Hayashi, Shigenobu Takeda, Yu Umezawa, Kazuhide Matsuda, Tatsuya Sakurai, Itsushi Uno
Summary: The East Asian oceans are heavily impacted by atmospheric nitrogen deposition, with emissions dominated by ammonia and nitrogen oxides. Deposition of reduced nitrogen dominates over most land and open ocean, while oxidized nitrogen dominates over marginal seas and desert areas. Dry deposition of nitric acid and wet deposition of fine-mode nitrate and ammonium are important processes determining nitrogen deposition over the region.
ENVIRONMENTAL POLLUTION
(2021)
Article
Environmental Sciences
Liuyang Sheng, Zhibing Jiang, Zhenhao Sun, Yuanli Zhu, Hongchang Zhai, Ling Ding, Mengmeng Tong, Jianfang Chen, Quanzhen Chen, Jiangning Zeng
Summary: This study reveals that the seasonal and spatial changes of N. scintillans in the East China Sea and southern Yellow Sea are largely controlled by phytoplankton biomass, particularly the concentration of chlorophyll-a. The abundance of N. scintillans in the Changjiang Estuary significantly increased in 2011 due to accelerated eutrophication and warming, resulting in higher phytoplankton abundance.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Yi Xu, Ying Wu, Peng Xiu, Jianzhong Ge, Jing Zhang
Summary: The study evaluates the seasonal and interannual variability of phytoplankton in the East China Sea (ECS) and identifies the environmental determinants that drive these variations. The findings highlight the importance of the triangular area in the ECS in understanding phytoplankton dynamics, with climate-sensitive environmental drivers playing a key role in the region.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Environmental Sciences
Dong-Geon Lee, Ji-Hoon Oh, Kyung Min Noh, Eun Young Kwon, Young Ho Kim, Jong-Seong Kug
Summary: The Yellow and East China Seas are productive continental shelves where nutrient supply for phytoplankton growth comes from the Kuroshio Current, riverine inputs, and atmospheric deposition. Surface temperature in these seas is increasing due to global warming. Future changes in biogeochemical processes were evaluated using CMIP6 Earth System Models, showing a great diversity in predictions of chlorophyll-a changes. This diversity is related to the extent of phosphorus limitation, and models simulating positive chlorophyll changes tend to simulate increased Dissolved Inorganic Phosphate supplies.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Engineering, Environmental
Hojong Seo, Guebuem Kim
Summary: The combustion of fossil fuels significantly affects the bioavailable iron pool in the aerosol and seawater of the East Sea (Japan Sea). Anthropogenic iron, originating from heavy fuel oil combustion, constitutes a large portion of the water-soluble iron in aerosols and dissolved iron in the East Sea. These findings suggest that the human activities have disrupted the marine iron cycle.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Analytical
Jian-Long Li, Xing Zhai, Rong Chen, Ying-Cui Wu, Hong-Hai Zhang
Summary: Marine-derived non-methane hydrocarbons (NMHCs) are believed to impact atmospheric oxidation balance and aerosol formation, influencing climate regulation. This study conducted field observations in the East China Sea to assess the distribution and sea-to-air fluxes of NMHCs, as well as the role of phytoplankton in their occurrence. Results suggest that although phytoplankton may produce NMHCs, relying on chlorophyll-a data or phytoplankton assemblages to estimate the production of other NMHCs in seawater is unreliable, highlighting the need for further research into factors controlling NMHC production.
ENVIRONMENTAL CHEMISTRY
(2021)
Article
Environmental Sciences
Chung-Chi Chen, Fuh-Kwo Shiah, Gwo-Ching Gong, Tzong-Yueh Chen
Summary: This study evaluates the simultaneous occurrences of phytoplankton blooms, hypoxia, and upwelling along the Zhejiang coast in the East China Sea. Upwelling uplifted bottom water to bring phytoplankton blooms and hypoxia, increasing the threat to marine life. High concentrations of nitrate and phosphate in the hypoxic regions may enhance phytoplankton blooms and worsen hypoxia.
MARINE POLLUTION BULLETIN
(2021)
Article
Microbiology
Soohyun Kim, Kwanwoo Kim, Naeun Jo, Hyo-Keun Jang, So-Hyun Ahn, Janghan Lee, Howon Lee, Sanghoon Park, Dabin Lee, Dean A. Stockwell, Terry E. Whitledge, Sang-Heon Lee
Summary: The understanding of primary production of phytoplankton in the Kara Sea, Laptev Sea, and East Siberian Sea is limited. In order to address this knowledge gap, three NABOS expeditions were conducted, measuring in situ primary production rates and examining their controlling factors. The study found significant spatial and regional differences in primary production rates, with the East Siberian Sea having a lower rate compared to the Kara Sea and Laptev Sea, likely due to regional differences in freshwater content.
Article
Environmental Sciences
Yongcheng Ding, Xinqing Zou, Chenglong Wang, Ziyue Feng, Ying Wang, Qinya Fan, Hongyu Chen
Summary: This study revealed the sources, composition, and deposition of atmospheric microplastics in the northwestern South China Sea, highlighting their significance and high environmental risk in the marine environment.
ATMOSPHERIC ENVIRONMENT
(2021)
Article
Environmental Sciences
Yanxu Sun, Seok-Hyun Youn, Yejin Kim, Jae Joong Kang, Dabin Lee, Kwanwoo Kim, Hyo Keun Jang, Naeun Jo, Mi Sun Yun, Sang-Keun Song, Sang Heon Lee
Summary: The study investigated the spatiotemporal variations and responses of phytoplankton community in the northern East China Sea to environmental changes. The results showed significant differences in the community structure between different years, with cryptophytes replacing diatoms as the dominant species in 2020. Dinoflagellates were found to prevail in low dissolved inorganic phosphate and high dissolved inorganic nitrogen conditions. The input of Changjiang River Diluted Water influenced the distribution of diatoms in the study area.
FRONTIERS IN MARINE SCIENCE
(2022)
Article
Limnology
Ji-Young Moon, Kitack Lee, Weol-Ae Lim, Eunil Lee, Minhan Dai, Yang-Ho Choi, In-Seong Han, Kyoungsoon Shin, Ja-Myung Kim, Jinho Chae
Summary: The increased anthropogenic nitrogen emissions from northeast Asian countries have led to significant changes in the nitrogen concentrations in the coastal waters of the Yellow and East China seas and around Korea, altering the nutrient ratios and leading to shifts from N deficiency to P deficiency. The dynamics of the nitrogen to phosphate ratio in different sea areas are influenced by atmospheric nitrogen deposition, riverine nutrient inputs, and changes in ocean currents.
LIMNOLOGY AND OCEANOGRAPHY
(2021)
Article
Environmental Sciences
Youngju Lee, Kyoung-Ho Cho, Jinyoung Jung, Jong Kuk Moon, Eun Jin Yang, Sung-Ho Kang
Summary: The northern Chukchi and East Siberian Seas (NCESS) in the Arctic Ocean are vulnerable to climate change, and the study investigates the impact of local physical forcing on phytoplankton biomass and communities in this area. The research shows that despite regional differences, the inter-annual variation in phytoplankton biomass and communities is similar across the entire NCESS, indicating the importance of environmental controllers.
FRONTIERS IN MARINE SCIENCE
(2023)
Article
Environmental Sciences
Xiaoqing Ma, Zhicong Yin
Summary: Surface O3 pollution in China shows a south-north dipole pattern of summer-mean O3 concentration, influenced by meteorological conditions, photochemistry, and O3 production processes. The study also found that Rossby wave source in Bolivia and thermodynamic signals in the southern Indian Ocean can affect the formation of O3 pollution.
ATMOSPHERIC CHEMISTRY AND PHYSICS
(2021)
Article
Biodiversity Conservation
Yan Li, Jia Lin, Xiang-Po Xu, Jin-Zhong Liu, Qian-Zhi Zhou, Jiang-Hai Wang
Summary: This study systematically analyzed the compositions and distributions of multi-biomarker indicators in a sediment core from the East China Sea, revealing variations in SOM sources and phytoplankton records over the last decades. The results show that terrestrial plants are the dominant SOM source and that the multi-biomarker indicators yield a better assessment of the SOM source input.
ECOLOGICAL INDICATORS
(2022)
Article
Oceanography
Quan Qiwei, Chen Ying, Ma Qingwei, Wang Fujiang, Meng Xi, Wang Bo
JOURNAL OF OCEAN UNIVERSITY OF CHINA
(2016)
Article
Engineering, Environmental
Qingwei Ma, Jing Ren, Honghui Huang, Shoubing Wang, Xiangrong Wang, Zhengqiu Fan
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Engineering, Environmental
Weiyang Dong, Yaojun Sun, Qingwei Ma, Li Zhu, Weiming Hua, Xinchun Lu, Guoshun Zhuang, Shicheng Zhang, Zhigang Guo, Dongyuan Zhao
JOURNAL OF HAZARDOUS MATERIALS
(2012)
Article
Environmental Sciences
Haowen Li, Ying Chen, Shengqian Zhou, Fanghui Wang, Tianjiao Yang, Yucheng Zhu, Qingwei Ma
Summary: This study found that atmospheric deposition, along with phosphate input, can significantly enhance the chlorophyll a (Chl a) concentrations in eutrophic waters, facilitating the growth of diatoms and dinoflagellates. Soluble metals, especially copper, in aerosols were identified as key components affecting phytoplankton composition in the eutrophic sea.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Environmental Sciences
Qingwei Ma, Ying Chen, Fanghui Wang, Haowen Li
Summary: The atmospheric deposition of nutrients can significantly impact marine phytoplankton growth, with the addition of nitrogen and phosphorus leading to a substantial increase in chlorophyll a concentrations. However, aerosol treatments showed lower chlorophyll a increments due to high nitrogen-to-phosphorus ratios. Dry flux of NH4+ and NO3- was found to be a strong predictor for springtime chlorophyll a in the ECS, indicating the importance of atmospheric deposition as a nitrogen source for supporting primary production.
