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Tidal water exchanges can shape the phytoplankton community structure and reduce the risk of harmful cyanobacterial blooms in a semi-closed lake

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Journal of Oceanology and Limnology 2022年第5期40卷 1868-1880页

作者： Wenxu ZHENG Renhui LI Wenli QIN Binbin CHEN Min WANG Wanchun GUAN Xiaoling ZHANG Qiao YANG Min ZHAO Zengling MA Zhejiang Provincial Key laboratory for Subtropical Water Environment and Marine Biological Resources Protection Wenzhou UniversityWenzhou 325035China National and Local Joint Engineering Research Center of Ecological Treatment Technology for Urban Water Pollution Wenzhou UniversityWenzhou 325035China Department of Marine Biotechnology School of Laboratory Medicine and Life ScienceWenzhou Medical UniversityWenzhou 325035China Marine Science and Technology College Zhejiang Ocean UniversityZhoushan 316022China School of Petrochemical Engineering and Environment Zhejiang Ocean UniversityZhoushan 316022China

For estuaries,inland lakes play a vital role in the ecological balance under the impact of tide *** effect of tides-induced water exchange on phytoplankton community in a semi-closed lake was studied and compared with that of an adjacent closed lake in the oujiang River mouth in Zhejiang,East China Sea,from June 29,2020 to June 14,*** show that the dominant species,abundance,dominance,and diversity of the phytoplankton species between the two lakes were significantly *** the closed lake,cyanobacteria were the dominant species during the study *** the semi-closed lake,the diversification of the dominant species was greater,and some species of diatoms and green algae became *** average phytoplankton abundance in the closed lake was 6 times of that in the semi-closed *** average dominance of cyanobacteria in the closed lake was 0.96,and those in the semi-closed lake and the oujiang River were 0.51 and 0.22,*** blooms occurred throughout the study time in the closed lake but not in the semi-closed ***,the species diversity richness of the phytoplankton in the semi-closed lake was higher than that of the closed one,and the phytoplankton community between the closed lake and semi-closed lake could be divided into distinctly different groups based on non-metic multidimensional scaling analysis(NMDS)and analysis of similarities(ANOSIM)*** salinity of the water was significantly greater and the transparency significantly smaller in the semi-closed lake than those in the closed ***,water exchange driven by local tidal movement increased salinity and decreased transparency of water,which consequently shaped the community structures of different phytoplankton and reduced the risk of a cyanobacterial bloom outbreak in the semi-closed lake.

关键词： estuary harmful cyanobacterial blooms phytoplankton community water exchange tidal movement environmental parameters

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Variation of Zooplankton Ecological Group During Spring in China Estuaries

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Journal of Ocean University of China 2019年第2期18卷 501-508页

作者： LU Wuyang GAO Qian XU Zhaoli Ministry of Agriculture Key laboratory of East China Sea and Oceanic Fishery Resources Exploitation East China Sea Fisheries Research Institute Chinese Academy of Fishery Sciences Ningbo Marine Environmental Monitoring Centre State Oceanic Administration College of Marine Sciences Shanghai Ocean University

Zooplankton was major indicator species of the environment. To explore the effect of marine environment on zooplankton distribution in the coast of China, the zooplankton samples from stations in Guanhe Estuary(GE), Changjiang(Yangtze River) Estuary(CE), oujiang Estuary(OE), Jiulongjiang Estuary(JE) and Beilun Estuary(BE)(covering 14 latitudes) in spring were surveyed and the variation of zooplankton ecological group was researched. According to the adaptability temperature, the zooplankton was divided into two ecological groups: warm-temperate species and subtropical species. The warm-temperate species was the main dominant species and subtropical species was only dominant species in BE. Calanus sinicus, a warm-temperate species, was the only dominant species in all five estuaries. From north to south, the proportion of warm-temperate species in the five estuaries gradually decreased depends on the number, were 83.33%, 48.39%, 45.00%, 43.75% and 30.43%, respectively. In contrary, the proportion of subtropical species was gradually increased. The warm-temperate species predominated over the total abundance and the percentage was whopping high in the north estuaries, including GE(96.16%), CE(95.57%), OE(97.83%) and JE(95.53%). The abundance percentage of subtropical species have remarkably higher(82.39%) in BE. Five estuaries zooplankton community was subdivided into three zooplankton groups, which were the northern warm temperate zooplankton group, the southern subtropical zooplankton group and the estuarine brackish-water group. The water temperature and coastal current of China Sea are recognized as the main factors determining the distribution and community structure of estuarine zooplankton in spring.

关键词： zooplankton estuary ecological group spring

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Sources of sediment in tidal flats off Zhejiang coast,southeast China

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Journal of Oceanology and Limnology 2021年第4期39卷 1245-1255页

作者： Jia JIA Xingze ZHANG Ruhui ZHOU Michael MEADOWS Dhritiraj SENGUPTA Lidong ZHU College of Geography and Environmental Science Zhejiang Normal UniversityJinhua 321004China Department of Environmental&Geographical Science University of Cape TownRondebosch 7701South Africa Key laboratory of Geographic Information Science Ministry of Educationand School of Geographic SciencesEast China Normal UniversityShanghai 200241China

The growth of tidal flats off Zhejiang coasts in southwestern China has provided substantial areas for local agriculture and construction *** evaluate modern and future development of tidal flats in the region,a good understanding of sediment sources is *** research has concluded that the Changjiang(Yangtze)River is the dominant supplier of sediments to this part of the southeast Chinese coast,despite the fact that sediment delivery from this source has been decreased markedly in the past two *** this study,we investigated the sources of tidal flat sediments,and the magnetic and geochemical properties of recent tidal flat sediments along the Zhejiang coast were compared with those discharged from *** and geochemical properties of the tidal flat samples reveal statistically distinct sediment provenance *** magnetic and geochemical scatter plots show that the suspended sediment samples are naturally divided into two different groups,one including the Changjiang River and Qiantang River material,and the other including the Jiaojiang,oujiang,and Feiyun Rivers that located in the central and southern parts of the study *** last,a binary source of tidal flat sediments along the Zhejiang coast was determined,with the substantial majority originating from local rivers,while a much smaller proportion emanates from the Changjiang River to the *** conclude that the sediment contribution of the Changjiang River to tidal flat development in the region has been markedly overestimated,with important implications for management.

关键词： tidal flats Zhejiang coastal area magnetic and geochemical characteristics sediment source tracing

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Monitoring and Evaluation of Environmental Quality of the Waters near the oujiang River Estuary in Wenzou

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Meteorological and Environmental Research 2019年第5期10卷 74-80页

作者： Lin Bo Zhang Haifeng Yao Dongping Qian Jian Zheng Fangqin Ye Xinrong Key laboratory of Engineering Oceanography Second Institute of OceanographyMinistry of Natural Resources

Based on the monitoring results of environmental quality of the waters near the oujiang River estuary from 2010 to 2017,the present situation of environmental quality of the waters was analyzed and *** results showed that pH,DO,COD Mn ,petroleum,and heavy metal (Cu,Pb,Zn,Cd,Hg,As and Cr) content in the waters near the oujiang River estuary did not exceed the second-class standard of Seawater Quality Standard (GB 3097-1997),while both inorganic nitrogen and reactive phosphate in the waters greatly exceeded the second-class *** water quality near the oujiang River estuary was in an eutrophic *** terms of sediment quality,the standard index of most evaluation factors except for Cu was smaller than 1,meeting the demands of sediment quality for environmental protection.

关键词： Waters near the oujiang River estuary Evaluation of environmental quality Characteristics of water quality Eutrophication

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Preserving cognitive function in patients with Alzheimer's disease:The Alzheimer's disease neuroprotection research initiative(ADNRI)

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Neuroprotection 2023年第2期1卷 84-98页

作者： Jie Liu Heleen van Beusekom Xian-Le Bu Gong Chen Paulo Henrique Rosado de Castro Xiaochun Chen Xiaowei Chen Andrew N.Clarkson Tracy D.Farr Yuhong Fu Jianping Jia Jukka Jolkkonen Woojin Scott Kim Paula Korhonen Shen Li Yajie Liang Guang-Hui Liu Guiyou Liu Yu-Hui Liu Tarja Malm Xiaobo Mao Joaquim Miguel Oliveira Mike M.Modo Pedro Ramos-Cabrer Karsten Ruscher Weihong Song Jun Wang Xuanyue Wang Yun Wang Haitao Wu Lize Xiong Yi Yang Keqiang Ye Jin-Tai Yu Xin-Fu Zhou Marietta Zille Colin L.Masters Piotr Walczak Boltze Johannes Xunming Ji Yan-Jiang Wang Department of Neurology Daping HospitalThird Military Medical UniversityChongqingChina Chongqing Key laboratory of Ageing and Brain Diseases ChongqingChina Division of Experimental Cardiology Department of CardiologyErasmus MCUniversity Medical CenterRotterdamThe Netherlands Institute of Brain and Intelligence Third Military Medical UniversityChongqingChina Guangdong-HongKong-Macao Institute of CNS Regeneration(GHMICR) Jinan UniversityGuangzhouGuangdongChina Institute of Biomedical Sciences Federal University of Rio de JaneiroRio de JaneiroRio de JaneiroBrazil Fujian Key laboratory of Molecular Neurology Department of Neurology and GeriatricsFujian Institute of GeriatricsFujian Medical University Union HospitalInstitute of NeuroscienceFujian Medical UniversityFuzhouFujianChina Guangyang Bay laboratory Chongqing Institute for Brain and IntelligenceChongqingChina Center for Excellence in Brain Science and Intelligence Technology Chinese Academy of SciencesShanghaiChina Department of Anatomy Brain Health Research Centre and Brain Research New ZealandUniversity of OtagoDunedinNew Zealand School of Life Sciences University of NottinghamNottinghamUK Brain and Mind Centre&School of Medical Sciences The University of SydneySydneyNew South WalesAustralia Innovation Center for Neurological Disorders and Department of Neurology Xuanwu HospitalNational Clinical Research Center for Geriatric DiseasesCapital Medical UniversityBeijingChina A.I.Virtanen Institute for Molecular Sciences University of Eastern FinlandKuopioFinland Department of Neurology and Psychiatry Beijing Shijitan HospitalCapital Medical UniversityBeijingChina Department of Diagnostic Radiology and Nuclear Medicine University of Maryland School of MedicineBaltimoreMarylandUSA University of Chinese Academy of Sciences BeijingChina State Key laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijingChina Beijing Institute of Brain Disorders Laboratory of Brain DisordersMinistry of Sci

The global trend toward aging populations has resulted in an increase in the occurrence of Alzheimer's disease(AD)and associated socioeconomic *** metabolism of amyloid-β(Aβ)has been proposed as a significant pathomechanism in AD,supported by results of recent clinical trials using anti-Aβ***,the cognitive benefits of the current treatments are *** etiology of AD is multifactorial,encompassing Aβand tau accumulation,neuroinflammation,demyelination,vascular dysfunction,and comorbidities,which collectively lead to widespread neurodegeneration in the brain and cognitive ***,solely removing Aβfrom the brain may be insufficient to combat neurodegeneration and preserve *** attain effective treatment for AD,it is necessary to(1)conduct extensive research on various mechanisms that cause neurodegeneration,including advances in neuroimaging techniques for earlier detection and a more precise characterization of molecular events at scales ranging from cellular to the full system level;(2)identify neuroprotective intervention targets against different neurodegeneration mechanisms;and(3)discover novel and optimal combinations of neuroprotective intervention strategies to maintain cognitive function in AD *** Alzheimer's Disease Neuroprotection Research Initiative's objective is to facilitate coordinated,multidisciplinary efforts to develop systemic neuroprotective strategies to combat *** aim is to achieve mitigation of the full spectrum of pathological processes underlying AD,with the goal of halting or even reversing cognitive decline.

关键词： Alzheimer's disease early intervention neural regeneration neuroprotection systematic perspective

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Spatial distribution of nitrification and denitrification rates of sediment in Wenruitang River, Wenzhou, China

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Chinese Journal Of Geochemistry 2006年第B8期25卷 20-21页

作者： Shaoyong LU Xiangcan JIN Jianning GUO Qingyun BU Feipen YANG Xiping CHEN Yuye YAO Research Center of Lake Environment Chinese Research Academy of Environmental Sciences State Environmental Protection Key Laboratory for Lake Pollution Control Beijing 100012 China Department of Environment Engineering Jilin Architectural and Civil Engineering Institute Changchun 130021 China Headquarters of River Wenruitanghe Regulation Project Wenzhou 404042 China

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