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Distribution and influencing factors of microeukaryote in different water layers of the southwestern Indian Ocean Ridge

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Journal of Oceanology and Limnology 2024年第5期42卷 1525-1539页

作者： Zhong LI Chao YUAN Ping SUN mingzhu fu Xuelei ZHANG Zongling WANG Qinzeng XU College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China

Microeukaryotes play a vital role in shaping marine ecosystems,especially in marine productivity,the microbial food web,and carbon *** Indian Ocean is one of the largest oligotrophic areas in the world,but little is known about the biodiversity of microeukaryotes in the *** community composition and geographical distribution of microeukaryotes collected from the surface(SUR)and deep chlorophyll maximum(DCM)layers in the southwestern Indian Ocean were studied using high-throughput sequencing of the 18S rRNA *** metagenomic data helped quantify the impact of environmental factors on microeukaryotic *** relative abundance of different taxa groups exhibited distinct patterns between SUR and DCM layers,except for the most dominant Dinoflagellata that accounted for more than 40.6%abundance in each *** was much more abundant in the nutrient-rich DCM layer than the SUR *** community similarity of microeukaryotes decreased with increasing of geographic distance,whereas the temperature and inorganic nitrogen were the most important environmental parameters to community *** communities were more influenced by dispersal limitations and rare communities were more responsive to environmental *** network analyses revealed strong biotic interactions indicative of parasitism,predation and competition,and their contribution to microeukaryotic population in diverse ***,this study provided insights into the biodiversity of microeukaryotes by characterizing the differences between water layers and identifying the driving factors in the ocean.

关键词： microeukaryote southwestern Indian Ocean community structure environmental factor biotic interaction Dinoflagellata

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Two drifting paths of Sargassum bloom in the Yellow Sea and East China Sea during 2019-2020

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Acta Oceanologica Sinica 2022年第6期41卷 78-87页

作者： Chao Yuan Jie Xiao Xuelei Zhang mingzhu fu Zongling Wang The MNR Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory of Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China National Engineering Laboratory for Integrated Aero-Space-Ground-Ocean Big Data Application Technology Xi'an 710129China

The macroalgal blooms of floating brown algae Sargassum horneri are increasing in the Yellow Sea and East China Sea during the past few ***,the annual pattern of Sargassum bloom is not well *** study the developing pattern and explore the impacts from hydro-meteorologic environment,high resolution satellite imageries were used to monitor the distribution,coverage and drifting of the pelagic Sargassum rafts in the Yellow Sea and East China Sea from September 2019 to August *** blooms were detected from October 2019 to June 2020 and presented two successive drifting paths that both initiated from around 37°*** first path spanned smaller spatial scale and shorter period,starting with a bloom of 3 km^(2) distribution area near the eastern tip of Shandong Peninsula in late October 2019 and drifted southwards,hit the Pyropia aquaculture area in early January 2020,then vanished in the northwest of East China Sea(ca.32°N)around end of *** second path began with a large distribution area of 23000 km^(2) east of 123°E in late January 2020,firstly moved southwards in the central Yellow Sea and northern East China Sea(north of 29°N)till late April,then turned northwards with monsoon wind and vanished from late June to *** mean sea surface temperature of 8℃ to 20℃ in the Sargassum bloom areas corresponded to in situ observed temperature range for vegetative growth and floating of *** was no observed floating Sargassum blooms during July through September in the Yellow Sea and East China *** results indicate that floating *** is unable to complete life cycle in the Yellow Sea and East China Sea,and provide insights to the future management of Sargassum *** studies are needed to validate the pattern and source of annual Sargassum bloom in the Yellow Sea and East China Sea.

关键词： Sargassum horneri macroalgal bloom high resolution remote sensing wind directions sea surface temperature Yellow Sea and East China Sea

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Changes of nutrient concentrations and N:P:Si ratios and their possible impacts on the Huanghai Sea ecosystem

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Acta Oceanologica Sinica 2012年第4期31卷 101-112页

作者： fu mingzhu WANG Zongling PU Xinming XU Zongjun ZHU Mingyuan Key Laboratory of Science and Engineering for Marine Ecological Environment First Institute of OceanographyState Oceanic AdministrationQingdao 266061China Marine Ecology Research Centre First Institute of OceanographyState Oceanic AdministrationQingdao 266061China

To investigate the impacts of nutrient concentrations and N：P：Si ratios on the ecosystem of the Huanghai Sea （Yellow Sea）, the current status and long-term variation of nutrients concentrations and ratios as well as phytoplankton community structure in the Huanghai Sea were collected and analyzed. The results reveal great annual and seasonal fluctuations in the nutrient concentrations and N：P：Si ratios during 1998-2008 with no clear pattern observed in the whole region. Yet on a seasonal scale of spring and in the coastal regions such as the Jiaozhou Bay and Sanggou Bay, the increase of DIN concentration and N：P ratio as well as the decrease of phosphate and sili- cate concentrations and Si：N ratios were relatively significant. Many pelagic ecosystem changes have occurred concurrent with these changes of the nutrient regime, such as the recent increase of primary production, changes of phytoplankton chlorophyll a biomass and abundance, an increase of eutrophication, and occurrence of HABs. In addition, new trends in the variation of nutrients seem to be developing in some particular transect such as 36N, which suggests that long-term and systematic ecosystem monitoring in the Huanghai Sea is necessary.

关键词： nutrient concentration and ratio long-term variation Huanghai Sea ecosystemresponse

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五指山野生大叶茶叶片代谢物鉴定和特征分析

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热带生物学报 2024年第4期15卷 400-406页

作者：苟志辉杜尚嘉符生波符明珠符溶吴海霞海南省林业科学研究院/海南省红树林研究院海口571100

为了解五指山野生大叶茶(Camellia sinensis var. assamica)代谢物的特征,利用代谢组学方法,对采集自五指山地区的野生茶树和人工茶园茶叶的代谢物成分开展了比较研究,在野生茶树茶叶中鉴定得到398个含量显著上调的代谢物和247个显著下... 详细信息

为了解五指山野生大叶茶(Camellia sinensis var. assamica)代谢物的特征,利用代谢组学方法,对采集自五指山地区的野生茶树和人工茶园茶叶的代谢物成分开展了比较研究,在野生茶树茶叶中鉴定得到398个含量显著上调的代谢物和247个显著下调的代谢物。基于偏最小二乘法判别分析表明,野生茶叶和人工茶叶分别聚为一类。富集分析结果显示,野生茶树叶片中含量显著上升的代谢物的功能主要富集于糖酵解、丙酮酸合成、氨基糖代谢和核苷糖代谢等糖代谢通路,以及酚类物质合成、核黄素代谢、鞘磷脂代谢和黄酮合成等通路,而显著下降的代谢物的功能主要富集于氨基酸代谢和油脂代谢等初生代谢。

关键词：野生茶叶五指山代谢组糖酚

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Source of propagules of the fouling green macroalgae in the Subei Shoal,China

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Acta Oceanologica Sinica 2018年第4期37卷 102-108页

作者： SONG Wei JIANG Meijie WANG Zongling WANG Hongping ZHANG Xuelei fu mingzhu Key Laboratory of Science and Engineering for Marine Ecology and Environment The First Institute of OceanographyState Oceanic Administration Laboratory of Marine Ecology and Environmental Science Qingdao National Laboratory for Marine Science and Technology Hunan Provincial Key Laboratory of Phytohormones and Growth Development Hunan Agricultural University

Since 2007,large-scale green tides dominated by Ulva prolifera consecutively bloomed in the Yellow Sea and caused great economic *** fouling *** on the Pyropia yezoensis aquaculture rafts in the Subei Shoal was regarded as the major source of the floating ***,it was still unclear about the seed source of fouling green macroalgae attached on the *** this study,the field surveys and the indoor experiments were conducted to reveal the source of propagules of the fouling green macroalgae on the rafts and to study the anti-fouling material for *** aquaculture rafts which could possibly be a feasible strategy to control the green tides in the Yellow *** results showed that（1） micro-propagules of several green macroalgal species,including ***,***,***,***,and Blidingia *** in the waters and sediments in the Subei Shoal and their proportion remarkably changed over time;（2） the bamboo poles with peeling treatment could significantly reduce the amount of *** micro-propagules *** study confirmed that the micro-propagules distributed in the Subei Shoal area were the precursors of the green tides,and provided a feasible method to control the Yellow Sea large-scale green tides at the beginning.

关键词： green tides source of propagules Ulva prolifera anti-fouling

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The distribution of phytoplankton size and major influencing factors in the surface waters near the northern end of the Antarctic Peninsula

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Acta Oceanologica Sinica 2021年第6期40卷 92-99页

作者： Lu Liu mingzhu fu Kaiming Sun Qinzeng Xu Zongjun Xu Xuelei Zhang Zongling Wang College of Environmental Science and Engineering Ocean University of ChinaQingdao 266100China Key Laboratory of Marine Eco-environmental Science and Technology of Ministry of Natural Resources First Institute of OceanographyQingdao 266061China Pilot National Laboratory for Marine Science and Technology(Qingdao) Qingdao 266237China

The waters near the Antarctic Peninsula have always been a study hot spot because of their variable and unique oceanographic *** determine the distribution and possible influencing factors on phytoplankton size and abundance near the Antarctic Peninsula,a large-scale survey was conducted during the austral summer *** were collected in 27 stations located in the Drake Passage(DP),South Shetland Islands(SSI),and South Orkney Islands(SOI).Phytoplankton communities were described using chlorophyll a(Chl a),flow cytometry and light microscopy to cover a size range from pico-to ***,especially small nanophytoplankton(2-6μm)with abundance ranging from 0.66×10^(3) cells/mL to 8.46×10^(3) cells/mL,was predominant throughout the study *** different regions,there was an obvious size *** proportion of picophytoplankton near the Elephant Island(EI)and DP was higher than other regions,and larger cells were found mainly in east of *** distribution of phytoplankton abundance detected by flow cytometry was not completely consistent with Chl a concentrations due to the contribution of larger cells to Chl *** influencing factors on the phytoplankton size distribution were *** properties of water masses such as temperature and salinity can influence the phytoplankton size *** analysis revealed that only picophytoplankton is significantly correlated with *** and Fe availability might affect phytoplankton abundance and size distribution especially near the waters of SSI and EI in this *** was also speculated that the abundance of cryptophytes is possibly related to ice melting.

关键词： Antarctic Peninsula phytoplankton size flow cytometry Chl a microscopy

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Spatiotemporal variability of physical-biogeochemical processes and intrinsic correlations in the semi-enclosed South Yellow Sea

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Acta Oceanologica Sinica 2020年第10期39卷 11-26页

作者： Qinsheng Wei Baodong Wang mingzhu fu Junchuan Sun Qingzhen Yao Ming Xin Zhigang Yu First Institute of Oceanography Ministry of Natural ResourcesQingdao 266061China Laboratory for Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China Frontiers Science Center for Deep Ocean Multispheres and Earth System Ministry of EducationOcean University of ChinaQingdao 266100China Laboratory for Regional Oceanography and Numerical Modeling Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

Investigating the spatiotemporal variability of biogeochemical processes and ecological responses under multiple physical controls in shelf seas is of great importance for obtaining an in-depth understanding of marine *** on a compiled data set of historical observations and remote sensing data,the spatiotemporal variability and heterogeneity of physical-biogeochemical processes in the semi-enclosed South Yellow Sea(SYS)are investigated,and the intrinsic connectivity among different subregions and the associated mechanisms are *** results show that the seasonal alternation between southward transport in cold seasons and upwelling-induced vertical delivery in warm seasons is the primary physical control of the biogeochemical processes and primary production off Shidao and in the area adjacent to the Haizhou *** northeastward expansion of coastal waters in the Subei Shoal constitutes an important physical driver for the offshore transport of Ulva prolifera in *** significantly affects the biogeochemical processes in the Yellow Sea Cold Water Mass(YSCWM)-dominated area during warm seasons,and nutrients can accumulate in bottom waters from spring to autumn,making the Yellow Sea Cold Water Mass(YSCWM)be an important nutrient *** around the YSCWM boundary in the stratified season leads to consistency among the high chlorophyll a(Chl a)area,high primary productivity region and low-temperature upwelling *** cold seasons,the interactions of the southward cold waters in the western nearshore area and the northward warm waters in the central region lead to an“S”-shaped front in the *** summer,upwelling can extract nutrients from the YSCWM;thus,the biogeochemical-ecological processes inside the cold-water mass and in the frontal zone are well connected via upwelling,and three typical physical-biogeochemical coupling regions are generated,namely,the Shidao coast,the area beyond the Haizhou Bay and the area off the

关键词： physical-biogeochemical process upwelling front Yellow Sea Cold Water Mass South Yellow Sea

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Population differentiation in the dominant species(Ulva prolifera)of green tide in coastal waters of China

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Acta Oceanologica Sinica 2022年第11期41卷 108-114页

作者： Hongbin Han Yan Li Xiaojun Ma Wei Song Zongling Wang mingzhu fu Xuelei Zhang Key Laboratory of Marine Eco-Environmental Science and Technology First Institute of OceanographyMinistry of Natural ResourcesQingdao 266061China Laboratory of Marine Ecology and Environmental Science Pilot National Laboratory for Marine Science and Technology(Qingdao)Qingdao 266237China

Since 2015,green tides with Ulva prolifera as the dominant species in the Qinhuangdao coastal waters have continued to *** this study,the relationship between green tides in Qinhuangdao and the Yellow Sea(setting sites in Rudong and Qingdao)was evaluated by genetic analyses of *** nucleotide polymorphism(SNP)markers were used to analyze genetic diversity and genetic relationships among *** differentiation was lower among floating *** populations in Rudong and Qingdao than in *** floating *** population had higher genetic diversity and polymorphism levels in Qingdao and Rudong than in *** experiments showed that the growth rate and net buoyancy of floating *** were highest in Qinhuangdao and Qingdao,respectively,under the same environmental conditions(temperature and light).Overall,these findings showed that *** populations in the Qinhuangdao and Yellow Sea green tides(Rudong and Qingdao)differ significantly at the molecular and physiological ***,the Qinhuangdao green tide is not correlated with the Yellow Sea green tide and has a different origin and development *** study provides insight into the mechanism underlying green tide blooms in coastal waters of China.

关键词： Ulva prolifera green tide dominant species population differentiation Qinhuangdao

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海南地区虎乳灵芝大棚栽培技术

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中国食用菌 2024年第2期43卷 120-124页

作者：吴向荣杜尚嘉吴海霞符明珠符溶符生波海南大学热带农林学院海南海口570228 海南省林业科学研究院(海南省红树林研究院) 海南海口571100

虎乳灵芝是一种具有较高营养价值、药用价值及经济价值的食药兼用菌,但其人工栽培技术开发较为滞后。通过栽培试验总结出海南地区虎乳灵芝大棚栽培技术,主要包括品种选择、菌种制作、大棚设置、覆土材料的选择与处理、做畦、栽培方法、... 详细信息

虎乳灵芝是一种具有较高营养价值、药用价值及经济价值的食药兼用菌,但其人工栽培技术开发较为滞后。通过栽培试验总结出海南地区虎乳灵芝大棚栽培技术,主要包括品种选择、菌种制作、大棚设置、覆土材料的选择与处理、做畦、栽培方法、培育期管理、病虫害防治、采收管理等,旨在为海南地区虎乳灵芝的大棚栽培提供技术支持。

关键词：虎乳灵芝海南地区大棚栽培技术

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不同家系海南大叶种茶苗期生长差异分析

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现代农业科技 2024年第20期 25-27,44页

作者：符生波杜尚嘉吴向荣符明珠符溶吴海霞海南省林业科学研究院(海南省红树林研究院) 海南海口571100

为了解五指山市水满乡不同家系海南大叶种茶苗期生长状况的差异,对其种子发芽率、发芽时间与茶苗的植株形态、叶片形态、生物量等生长指标进行测定,并对各项生长指标进行方差分析,以期为后续种质资源筛选提供一定的研究基础。结果表明:... 详细信息

为了解五指山市水满乡不同家系海南大叶种茶苗期生长状况的差异,对其种子发芽率、发芽时间与茶苗的植株形态、叶片形态、生物量等生长指标进行测定,并对各项生长指标进行方差分析,以期为后续种质资源筛选提供一定的研究基础。结果表明:不同种质资源海南大叶种茶的变异系数不同,范围在4.58%~37.27%之间,具有丰富的变异,选育潜力大;通过对比发现,发芽率最高的种质资源为ZZ1-3(89.06%),种质资源FX2长势较强,其株高为10.40 cm,地径为1.94 mm,平均叶数为3.20片,叶长为7.09 cm,叶宽为3.68 cm,长宽比为1.93。

关键词：海南大叶种茶种质资源种子发芽率植株形态叶片形态

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