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    669 Poyang Lake Region Macroinvertebrates

    Title
    Poyang Lake Region Macroinvertebrates
    Description

    Poyang Lake Region Macroinvertebrates

     

    Study site: China. Authors: Mathias Kuemmerlen & Sonja Jähnig.

     

    Contact details:

    Mathias Kuemmerlen. E-mail: mathias@kuemmerlen.net. ORCID: https:/orcid.org/0000-0003-1362-3701. Affiliation: Bonn, Germany.

    Sonja C. Jähnig. E-mail: Sonja.Jaehnig@igb-berlin.de. ORCID: https:/orcid.org/0000-0002-6349-9561. Affiliation: Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) & Humboldt-Universität zu Berlin.

     

     

    Coordinates of the bounding box (ulx, uly, lrx, lry): 117.37406, 29.994012, 117.780841, 29.605819

    Centroid coordinates (x,y): 117.576879,29.821199

    Number of records: 1141

     

    The dataset includes records in areas: 

    Not protected on the observation date (0)

    using the November 2022 version of the Protected Planet WDPA WD-OECM dataset 

        (Protected Planet: World Database on Protected Areas (WDPA) 

        and World Database on Other Effective Area-based Conservation Measures (WD-OECM), UNEP-WCMC and IUCN, 2022). 

        Please see publication for further information.

     

    Freshwater Ecoregions of the World (FEOW, Abell et al., 2008) covered: 766

     

     

    Taxonomic focus of the study: All macroinvertebrate community

     

    Survey methods: kick sample with hand net

     

    Study site
    _global
    GeoNode references

    GeoNode layers

    • Poyang_Lake_Region_Macroinvertebrates
    Contact
    Afroditi Grigoropoulou
    Licence for data
    All rights reserved. Please send a request to Afroditi Grigoropoulou if you like to use this data. Mind our data policy: IGB Data Policy
    Current doi
    10.18728/igb-fred-799.2

    Metadata files

    TitleUpload dateFiletypeLicenceActions
    Column_explanation.pdf15. Nov. 2022 15:30.pdfODC-By Download

    Data files (e.g. excel)

    TitlecreatedFiletypeActions
    Poyang_Lake_Region_Macroinvertebrates.csv 15. Nov. 2022 15:30 datatable: .csv Download

    Machine Readable Metadata Files

    FRED provides all metadata of this package in a maschine readable format. There is a pure XML file and one EML file in Ecological Metadata Language. Both files are published under the freeODC-ByLicence.

    • Poyang_Lake_Region_Macroinvertebrates.xml
    • Poyang_Lake_Region_Macroinvertebrates.eml

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    Parsing data File

    Estimated Time:

    Why does it take so much time?

    While parsing a file, the database has to perform various tasks, some of them needs a lot of CPU and memory for larger files.

    • preprocessing: means automatic detection of headlines, table body, format values or csv-separators
    • copying: means read the file cell by cell and copy all elements to the database. During this format settings can be calculated (for example iso-time)
    • analyzing: check out for different data types (can be time, numeric or text)