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  1. Article: Impacts of the Zhe-Min Coastal Current on the biogeographic pattern of microbial eukaryotic communities

    Xu, Zhimeng / Dai, Minhan / Li, Yifan / Li, Yingdong / Liu, Hongbin / Lu, Yanhong / Yuan, Zhongwei

    Progress in oceanography. 2020 Apr., v. 183

    2020  

    Abstract: ... the geographic distributions of microorganisms. The Zhe-Min Coastal Current (ZMCC) is strong in winter and could influence ...

    Abstract One interesting question in the study of marine microbial ecology is how ocean currents affect the geographic distributions of microorganisms. The Zhe-Min Coastal Current (ZMCC) is strong in winter and could influence the plankton communities in Hong Kong coastal waters by bringing species from far north. In this study, we investigated the spatial distribution of microbial eukaryotic communities (MEC) in the ZMCC and evaluated the relative contribution of environmental and spatial factors on the variations of MEC. The results showed that diverse taxa of diatoms (Bacillariophyceae) and Dinophyceae (Dinoflagellata) dominated the sequences in all samples. MEC compositions in the Hong Kong coastal waters were closer to the communities in the ZMCC than other adjacent areas. Abundant and rare taxa exhibited a similar geographic pattern of distribution. Environmental factors alone explained 14.1% and 27.6% of the variations in the entire and abundant communities, respectively, which were higher than pure spatial factors (8.3% and 19.5%, respectively). The lower importance of spatial factors (dispersal limitation) might be explained by the passive dispersal favored by current transportation and was further supported by the high immigration rate computed in the neutral community model (NCM). High fitness to the NCM (R2 = 0.74) indicated the predominant role of neutral process in shaping the MEC. The large proportion of unexplained variations in rare taxa suggested the importance of other potential factors, especially biotic interactions. Our study demonstrates the influences of coastal current on local and regional structures of MEC.
    Keywords Bacillariophyceae ; biocenosis ; coastal water ; Dinophyceae ; environmental factors ; geographical distribution ; immigration ; microbial ecology ; microorganisms ; plankton ; water currents ; winter ; China
    Language English
    Dates of publication 2020-04
    Publishing place Elsevier Ltd
    Document type Article
    ISSN 0079-6611
    DOI 10.1016/j.pocean.2020.102309
    Database NAL-Catalogue (AGRICOLA)

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  2. Article ; Online: Multiple biomarkers for indicating changes of the organic matter source over the last decades in the Min-Zhe sediment zone, the East China Sea

    Yan Li / Jia Lin / Xiang-Po Xu / Jin-Zhong Liu / Qian-Zhi Zhou / Jiang-Hai Wang

    Ecological Indicators, Vol 139, Iss , Pp 108917- (2022)

    2022  

    Abstract: ... in a long sediment core collected from the Min-Zhe fined-grained sediment zone of the ECS were ...

    Abstract The temporal variation of sedimentary organic matters (SOM) in the East China Sea (ECS) is not fully assessed due to the complicated natural and anthropogenic processes. In this study, the compositions and distributions of multi-biomarker indicators (n-alkanes, n-alkanols and specific sterols) in a long sediment core collected from the Min-Zhe fined-grained sediment zone of the ECS were systematically studied to reveal variations of SOM sources and phytoplankton records over the last decades. The results of n-alkanes and sterols have demonstrated that terrestrial plants are the dominant SOM source, with the mean proportion of 67%. The temporal variation of terrestrial to marine biomarker ratios (TMBR) agree well with that of the dominant n-alkanes and terrigenous/aquatic ratios (TAR), suggesting that the multi-biomarker indicators yield a better assessment of the SOM source input. The regular variations of terrestrial OM and phytoplankton signals during the past decades record the interaction among marine ecological effects, anthropogenic activities and natural processes (i.e., extreme climate events). As a whole, the elevated productivity of marine phytoplankton since 1952 (mainly caused by enhanced nutrient inputs owing to the intensified human activities) and the decline in the period of 2005–2011 (likely influenced by the water impoundment of the Three Gorges Dam in 2003) were well reconstructed on the basis of brassicasterol (B) and dinosterol (D) indicators in this study. The B/(B + D) ratios also reveal the changes of community structure as a result of variations in the nutrient structure controlled by anthropogenic forcing. Notably, the anomalous peak in the abundance of n-alkanes with the even carbon predominance in about 1990 is identified for the first time, which may occur at that time of the first heavy rainfall after a long drought and is probably of the origin of biomass/fossil fuel combustion.
    Keywords Lipid biomarkers ; Terrestrial organic matters ; Phytoplankton productivity ; The East China Sea ; Ecology ; QH540-549.5
    Subject code 550
    Language English
    Publishing date 2022-06-01T00:00:00Z
    Publisher Elsevier
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Multiple biomarkers for indicating changes of the organic matter source over the last decades in the Min-Zhe sediment zone, the East China Sea

    Li, Yan / Lin, Jia / Xu, Xiang-Po / Liu, Jin-Zhong / Zhou, Qian-Zhi / Wang, Jiang-Hai

    Ecological indicators. 2022 June, v. 139

    2022  

    Abstract: ... in a long sediment core collected from the Min-Zhe fined-grained sediment zone of the ECS were ...

    Abstract The temporal variation of sedimentary organic matters (SOM) in the East China Sea (ECS) is not fully assessed due to the complicated natural and anthropogenic processes. In this study, the compositions and distributions of multi-biomarker indicators (n-alkanes, n-alkanols and specific sterols) in a long sediment core collected from the Min-Zhe fined-grained sediment zone of the ECS were systematically studied to reveal variations of SOM sources and phytoplankton records over the last decades. The results of n-alkanes and sterols have demonstrated that terrestrial plants are the dominant SOM source, with the mean proportion of 67%. The temporal variation of terrestrial to marine biomarker ratios (TMBR) agree well with that of the dominant n-alkanes and terrigenous/aquatic ratios (TAR), suggesting that the multi-biomarker indicators yield a better assessment of the SOM source input. The regular variations of terrestrial OM and phytoplankton signals during the past decades record the interaction among marine ecological effects, anthropogenic activities and natural processes (i.e., extreme climate events). As a whole, the elevated productivity of marine phytoplankton since 1952 (mainly caused by enhanced nutrient inputs owing to the intensified human activities) and the decline in the period of 2005–2011 (likely influenced by the water impoundment of the Three Gorges Dam in 2003) were well reconstructed on the basis of brassicasterol (B) and dinosterol (D) indicators in this study. The B/(B + D) ratios also reveal the changes of community structure as a result of variations in the nutrient structure controlled by anthropogenic forcing. Notably, the anomalous peak in the abundance of n-alkanes with the even carbon predominance in about 1990 is identified for the first time, which may occur at that time of the first heavy rainfall after a long drought and is probably of the origin of biomass/fossil fuel combustion.
    Keywords alkanes ; biomarkers ; biomass ; carbon ; climate ; community structure ; drought ; fossil fuels ; fuel combustion ; humans ; organic matter ; phytoplankton ; rain ; sediments ; sterols ; temporal variation ; East China Sea
    Language English
    Dates of publication 2022-06
    Publishing place Elsevier Ltd
    Document type Article
    ZDB-ID 2036774-0
    ISSN 1872-7034 ; 1470-160X
    ISSN (online) 1872-7034
    ISSN 1470-160X
    DOI 10.1016/j.ecolind.2022.108917
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 7436: Show issues

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  4. Article: Rates and fluxes of centennial-scale carbon storage in the fine-grained sediments from the central South Yellow Sea and Min-Zhe belt, East China Sea

    Wang, Jianghai / Liu, Jinzhong / Xiao, Xi / Xu, Xiaoming / Yuan, Dongliang / Zhang, Chenxi / Zhou, Qianzhi

    Journal of oceanology and limnology. 2018 Jan., v. 36, no. 1

    2018  

    Abstract: ... grained sediment cores from the central South Yellow Sea area (SYSA) and Min-Zhe belt (MZB ...

    Abstract The global carbon cycle has played a key role in mitigating global warming and climate change. Long-term natural and anthropogenic processes influence the composition, sources, burial rates, and fluxes of carbon in sediments on the continental shelf of China. In this study, the rates, fluxes, and amounts of carbon storage at the centennial scale were estimated and demonstrated using the case study of three fine-grained sediment cores from the central South Yellow Sea area (SYSA) and Min-Zhe belt (MZB), East China Sea. Based on the high-resolution temporal sequences of total carbon (TC) and total organic carbon (TOC) contents, we reconstructed the annual variations of historical marine carbon storage, and explored the influence of terrestrial and marine sources on carbon burial at the centennial scale. The estimated TC storage over 100 years was 1.18×108 t in the SYSA and 1.45×109 t in the MZB. The corrected TOC storage fluxes at the centennial scale ranged from 17 to 28 t/(km2·a)in the SYSA and from 56 to 148 t/(km2·a) in the MZB. The decrease of terrestrial materials and the increase of marine primary production suggest that the TOC buried in the sediments in the SYSA and MZB was mainly derived from the marine autogenetic source. In the MZB, two depletion events occurred in TC and TOC storage from 1985 to 1987 and 2003 to 2006, which were coeval with the water impoundment in the Gezhouba and Three Gorges dams, respectively. The high-resolution records of the carbon storage rates and fluxes in the SYSA and MZB reflect the synchronous responses to human activities and provide an important reference for assessing the carbon sequestration capacity of the marginal seas of China.
    Keywords carbon sequestration ; case studies ; continental shelf ; dams (hydrology) ; global warming ; primary productivity ; sediments ; total organic carbon ; China ; East China Sea ; Yellow Sea
    Language English
    Dates of publication 2018-01
    Size p. 139-152.
    Publishing place Science Press
    Document type Article
    ISSN 2096-5508
    DOI 10.1007/s00343-017-6242-y
    Database NAL-Catalogue (AGRICOLA)

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  5. Book: Liang zhe ming xian lu

    Xu, Xiangmei

    : [54 juan, wai lu 8 juan]

    (Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 17 ; 北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 17)

    1988  

    Author's details Xu xiang mei zhuan
    Series title Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 17
    北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 17
    Language Chinese
    Size 884 p
    Publisher Shu mu wen xian chu ban she
    Publishing place Bei jing
    Document type Book
    Database Former special subject collection: coastal and deep sea fishing

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  6. Book: Liang zhe ming xian lu

    Xu, Xiangmei

    : [54 juan, wai lu 8 juan]

    (Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 18 ; 北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 18)

    1988  

    Author's details Xu xiang mei zhuan
    Series title Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 18
    北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 18
    Language Chinese
    Size p. 885-1784
    Publisher Shu mu wen xian chu ban she
    Publishing place Bei jing
    Document type Book
    Database Former special subject collection: coastal and deep sea fishing

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    Your chosen title can be delivered directly to ZB MED Cologne location if you are registered as a user at ZB MED Cologne.

  7. Book: Liang zhe ming xian lu

    Xu, Xiangmei

    [54 juan, wai lu 8 juan]

    (Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 17-18 ; 北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 17-18)

    1988  

    Author's details Xu xiang mei zhuan
    Series title Bei jing tu shu guan gu ji zhen ben cong kan : Shi bu, zhuan ji lei ; 17-18
    北京圖書館古籍珍本叢刊 : 史部・傳記類 ; 17-18
    Keywords China ; Zhejiang Sheng (China)
    Language Chinese
    Size 2 v, 27 cm
    Publisher Shu mu wen xian chu ban she
    Publishing place Bei jing
    Document type Book
    Note Each page represents 2 leaves of the original ; Ju Ming Tianqi Xu shi Guang bi tang ke ben ying yin
    ISBN 7501304459 ; 9787501304455
    Database Former special subject collection: coastal and deep sea fishing

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  8. Article ; Online: Anterior Segment OCT Image of Vitreous Hernia.

    Shi, Ce / Xu, Zhe / Xu, Wen

    Ophthalmology

    2024  

    Language English
    Publishing date 2024-03-01
    Publishing country United States
    Document type Journal Article
    ZDB-ID 392083-5
    ISSN 1549-4713 ; 0161-6420
    ISSN (online) 1549-4713
    ISSN 0161-6420
    DOI 10.1016/j.ophtha.2024.02.001
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Ul II Zs.83: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 2021: Bestellungen von Artikeln über das Online-Bestellformular
    ab Jg. 2022: Lesesaal (EG)
    Zs.MO 533: Show issues

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  9. Article ; Online: Multiple facial atrophic scars in childhood.

    Yang, Zhou / Xu, Zhe / Ma, Lin

    Pediatric dermatology

    2024  

    Language English
    Publishing date 2024-02-08
    Publishing country United States
    Document type Journal Article
    ZDB-ID 605539-4
    ISSN 1525-1470 ; 0736-8046
    ISSN (online) 1525-1470
    ISSN 0736-8046
    DOI 10.1111/pde.15542
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1882: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

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  10. Book: Da qing ji fu xian zhe zhuan

    Xu, Shichang

    1968  

    Author's details Xu shi chang zhuan
    Language Chinese
    Publisher Da tong shu ju
    Publishing place Tai bei
    Document type Book
    Database Former special subject collection: coastal and deep sea fishing

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