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    466 Data from Lakes in Québec, Canada

    Title
    Data from Lakes in Québec, Canada
    Period
    2004-01-01 ongoing
    Description

    This dataset comprises phytoplankton and zooplankton composition data for early July 2005 across 54 lakes in southern Québec.  They were sampled at the height of stratification in summer. Phytoplankton biovolumes (biomass) are presented in ug/L and zooplankton dry weights in ug/L as estimated using allometric relationships. Environmental data is also presented.

    A description of the collection and estimation methods can be found in:

    Beisner, B. E. & Longhi, M. L. 2013. Spatial overlap in lake phytoplankton : Relations with environmental factors and consequences for diversity. Limnol. Oceanogr. 58,1419–1430.

    Keywords
    phytoplankton, zooplankton, composition, biomass, DOC, TP, lake morphometry, pH, TN, water colour, Secchi depth
    Study site
    Lakes in Canada
    Sampling types
    Phytoplankton, Zooplankton, surface water
    Sampling locations
    Centralize Québec lake sampling sites (south)
    location
    45.31352900692258, -72.16918945312501
    location
    type
    state
    Québec, Canada
    code
    description

    Eastern Townships and Chaudière Appalache regions where lakes were sampled.

    Centralize Québec lake sampling sites (north)
    location
    45.95305927379983, -74.25659179687501
    location
    type
    state
    Québec, Canada
    code
    description

    Laurentians and Outaouais regions where lakes were sampled.

    Parameters

    chemistry:

    C, DOC (dissolved organic carbon)
    name
    C, DOC (dissolved organic carbon)
    description

    0,45µm filtrated,   purging with hydrochloric acid, nondispersive infrared sensor  (NDIR) after combustion

    synonyms
    dissolved organic material (DOM), non-purgeable organic carbon (NPOC)
    P, (total phosphorus)
    name
    P, (total phosphorus)
    description

    photometric determination after digestion

    synonyms
    total phosphorus, gesamter Phosphor
    Contact
    Beatrix Beisner
    Licence for data
    All rights reserved. Please send a request to Beatrix Beisner if you like to use this data. Mind our data policy: IGB Data Policy
    Project
    LimnoScenES Project Website

    Data files (e.g. excel)

    TitlecreatedFiletypeActions
    Env_Data.xlsx 02. May. 2019 06:24 datatable: .xlsx
    Error: To access file, please get in touch with the contact person.
    ZooData.xlsx 11. Mar. 2019 19:58 datatable: .xlsx
    Error: To access file, please get in touch with the contact person.
    PhytoBiom.xlsx 11. Mar. 2019 19:58 datatable: .xlsx
    Error: To access file, please get in touch with the contact person.

    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.

    • Data_from_Lakes_in_Québec,_Canada.xml
    • Data_from_Lakes_in_Québec,_Canada.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)