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    467 Baggersee general

    Summary

    Title
    Baggersee general
    Period
    from: 2016-01-01 ongoing
    Interval
    Irregular Interval
    Description

    File All_Taxa.csv contains an "relative abundance" list of all found species of different taxa in order:

    Waterfowl - Amphibians - Dragonflies - Damselflies - Song Birds - Makrophytes - Trees - Herbs

    Observations are on lake-level. "Management" is either managed for recreational fischeries ("bewirtschaftet") or no recreational fisheries management ("unbewirtschaftet").

    Study Site
    Baggerseen Niedersachsen
    Samplingtypes
    Macrophytes, surface water
    Parameter

    biology:

    abundance
    name
    abundance
    chlorophyll a
    name
    chlorophyll a
    description

    Attention: There are two different methods:

    HPLC - High Performance Liquid Chromatography (ex situ)

    YSI - Chlorophyll Sensor in Multiparameter probe (in situ)

    synonyms
    Chlorophyllkonzentration, alpha-chlorophyll

    chemistry:

    ammonium
    name
    ammonium
    description

    NH4+
    calcium
    name
    calcium
    synonyms
    Kalzium
    dissolved organic carbon
    name
    dissolved organic carbon
    description

    Dissolved organic carbon (DOC), sometimes known as dissolved organic material (DOM),[1] is a broad classification for organic molecules of varied origin and composition within aquatic systems. The "dissolved" fraction of organic carbon is an operational classification. Many researchers use the term "dissolved" for compounds below 0.45 micrometers, but 0.22 micrometers is also common, saving colloidal for higher concentrations. A practical definition of dissolved typically used in marine chemistry is all substances that pass through a GF/F filter. The recommended measure technique is the HTCO technique after filtration on precombusted glass fiber filters, typically GF/F filters.[2]

    Dissolved organic carbon in marine and freshwater systems is one of the greatest cycled reservoirs of organic matter on Earth, accounting for the same amount of carbon as the atmosphere and up to 20% of all organic carbon.[3] The source of dissolved organic carbon depends on the body of water. In general, organic carbon compounds are a result of decomposition processes from dead organic matter such as plants or marine organisms. When water originates from land areas with a high proportion of organic soils, these components can drain into rivers and lakes as dissolved organic carbon.

    Dissolved organic carbon is also extremely important in the transport of metals in aquatic systems. Metals form extremely strong complexes with dissolved organic carbon, enhancing metal solubility while also reducing metal bioavailability.

    (Wikipedia)

    synonyms
    dissolved organic material (DOM), non-purgeable organic carbon (NPOC)
    electrical conductivity
    name
    electrical conductivity
    synonyms
    elektrische Leitfähigkeit, Salinität, Salzgehalt, Konduktivität, cond
    iron
    name
    iron
    magnesium
    name
    magnesium
    manganese
    name
    manganese
    synonyms
    Mangan
    nitrate
    name
    nitrate
    oxygen concentration
    name
    oxygen concentration
    synonyms
    Sauerstoffkonzentration
    pH
    name
    pH
    soluble reactive phosphorus
    name
    soluble reactive phosphorus
    description

    IGB Methodendatenbank:

    http://intranet.igb-berlin.de/methodendetails/items/75.html

    synonyms
    anorganischer gelöster Phosphor, ortho-Phosphat-P, DRP, DIP, inorganic soluble phosphorus
    total phosphorus
    name
    total phosphorus

    physics:

    secchi depth
    name
    secchi depth
    description

    synonyms
    Sichttiefe, Transparancy
    water temperature
    name
    water temperature
    description

    Wassertemperatur

    synonyms
    water temp, Wassertemperatur
    Contact
    Robert Nikolaus
    Licence for data
    All rights reserved. Please send a request to Robert Nikolaus if you like to use this data. Mind our data policy: IGB Data Policy
    Project
    BAGGERSEE Project Website

    Data files (excel)

    TitelCreateFiletypeActions
    Seeparameter_fuer_FRED.csv 06. Mar. 2019 11:21 datatable: .csv
    Error: To access file, please get in touch with the contact person.
    All_taxa.csv 06. Mar. 2019 10:47 datatable: .csv
    Error: To access file, please get in touch with the contact person.

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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)