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Dataset Title:	RISC and ALERT Marine Non-Native Species (Chinese Mitten Crab, Wakame and Carpet Sea Squirt) Records
Institution:	MBA, NBN (Dataset ID: gbif_14568)
Range:	longitude = -5.082 to 4.656°E, latitude = 50.16 to 54.97°N, time = 1935-01-01T01:00:00Z to 2013-04-30T01:00:00Z
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Subset \| Data Access Form \| Files

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The Dataset Attribute Structure (.das) for this Dataset

Attributes {
 s {
  ScientificName {
    String long_name "ScientificName";
    String sdn_P02_name "SeaDataNet biological format biotic parameters";
    String sdn_P02_uri "https://vocab.nerc.ac.uk/collection/P02/current/BPRP/";
    String sdn_P02_urn "SDN:P02::BPRP";
    String sdn_parameter_name "Taxon of biological entity specified elsewhere";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/";
    String sdn_parameter_urn "SDN:P01::SCNAME01";
    String sdn_uom_name "Not applicable";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/XXXX/";
    String sdn_uom_urn "SDN:P06::XXXX";
    String standard_name "scientificname";
    String units "Not applicable";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/";
  }
  BasisOfRecord {
    String long_name "BasisOfRecord";
    String units "None";
    String units_uri "None";
  }
  InstitutionCode {
    String long_name "InstitutionCode";
    String units "None";
    String units_uri "None";
  }
  YearCollected {
    Float32 actual_range 1935.0, 2013.0;
    String long_name "YearCollected";
    String units "None";
    String units_uri "None";
  }
  MonthCollected {
    Float32 actual_range 1.0, 12.0;
    String long_name "MonthCollected";
    String units "None";
    String units_uri "None";
  }
  DayCollected {
    Float32 actual_range 1.0, 31.0;
    String long_name "DayCollected";
    String units "None";
    String units_uri "None";
  }
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -1.104534e+9, 1.3672836e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String time_precision "1970-01-01T00:00:00Z";
    String units "seconds since 1970-01-01T00:00:00Z";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/CJDY1101";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -5.082, 4.656;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 50.16, 54.97;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01";
  }
  aphia_id {
    String long_name "aphia_id";
    String sdn_P02_name "SeaDataNet biological format biotic parameters";
    String sdn_P02_uri "https://vocab.nerc.ac.uk/collection/P02/current/BPRP/";
    String sdn_P02_urn "SDN:P02::BPRP";
    String sdn_parameter_name "Identifier (LSID) of biological entity specified elsewhere";
    String sdn_parameter_uri "https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/";
    String sdn_parameter_urn "SDN:P01::SNANID01";
    String sdn_uom_name "Not applicable";
    String sdn_uom_uri "https://vocab.nerc.ac.uk/collection/P06/current/XXXX/";
    String sdn_uom_urn "SDN:P06::XXXX";
    String standard_name "aphia_id";
    String units "Not applicable";
    String units_uri "https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/";
  }
 }
  NC_GLOBAL {
    String AccConID "21";
    String AccConstrDescription "This license lets others distribute, remix, tweak, and build upon your work, even commercially, as long as they credit you for the original creation. This is the most accommodating of licenses offered. Recommended for maximum dissemination and use of licensed materials.";
    String AccConstrDisplay "This dataset is licensed under a Creative Commons Attribution 4.0 International License.";
    String AccConstrEN "Attribution (CC BY)";
    String AccessConstraint "Attribution (CC BY)";
    String Acronym "None";
    String added_date "2014-04-16 16:15:04.433000";
    String BrackishFlag "0";
    String CDate "2013-04-24";
    String cdm_data_type "Other";
    String CheckedFlag "0";
    String Citation "UK National Biodiversity Network, Marine Biological Association - RISC and ALERT Marine Non-Native Species (Chinese Mitten Crab, Wakame and Carpet Sea Squirt) Records";
    String Comments "GBIF Portal ID 14568";
    String ContactEmail "None";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creator_name "Parr";
    String CurrencyDate "None";
    String DasID "4215";
    String DasOrigin "Data collection";
    String DasType "Data";
    String DasTypeID "1";
    String DateLastModified "{'date': '2025-02-18 01:34:01.301036', 'timezone_type': 1, 'timezone': '+01:00'}";
    String DescrCompFlag "0";
    String DescrTransFlag "0";
    String DOI "10.15468/ls37zx";
    Float64 Easternmost_Easting 4.656;
    String EmbargoDate "None";
    String EngAbstract "Recording Invasive Species Counts (RISC) alongside ALERT was launched in 2010 and includes on-line recording for 19 species including the Chinese Mitten Crab Eriocheir sinensis, Wakame Undaria pinnatifida and Carpet Sea Squirt Didemnum vexillum. The data is predominantly provided by members of the public but records are verified from photos by designated experts. No additional attribute data is included for the Carpet Sea Squirt. The recording forms for Chinese Mitten Crab and Wakame includes the option to provide abundance. Additionally for the Chinese Mitten Crab information on whether it is dead or alive is recorded and for Wakame attachment method (attached to boat, attached to other man-made surface, attach to natural surface or detached) is recorded.";
    String EngDescr 
"Purpose of data capture: The records were collected through the Recording Invasive Species Counts (RISC) project and the ALERT system which was launched in 2010 as a partnership between the NBN, BRC and associated recording schemes and societies. The Chinese Mitten Crab, Wakame and Carpet Sea Squirt data was collated in conjunction with the Marine Biological Association. RISC is embedded within the GB-NNSIP alongside species selected as ALERT for which on-line records allow for rapid notification to the Non-Native Species Secretariat. RISC was established in raise awareness of invasive non-native species and to increase distribution data for a selection of species considered to meet a number of criteria which ensured their suitability for recording by the public. Increasing the availability of distribution data is an important component of the Non-Native Species Framework Strategy for Great Britain.

Methods of data capture: The data is collected by members of the public reporting their sightings through an on-line recording form (powered by Indicia). The records are generally casual observations but might also result from a systematic survey of a water body or surrounding locality. Records submitted with a photograph are verified by a designated expert and only these records are included within the dataset.

Geographical coverage: The geographic extent of the RISC dataset is GB. Ireland records non-native species through Invasive Ireland. The majority of records in this dataset are collated with six figure grid-references.

Temporal coverage: RISC has been promoted both during the initial launch phase and subsequently through conference talks and media attention. Additionally RISC includes mostly high profile species. The Chinese Mitten Crab has been the subject of an intense campaign of recording by the MBA with relevant partners. Therefore, recording activity is likely to have been maintained at a high level. All the records have a full date (DD/MM/YYYY).

Data quality: The data should be regarded as accurate because of the verification and validation mechanisms.

Additional information sources\t: The Chinese Mitten Crab data can be viewed with contextual tekst through the MBA Mitten Crab Recording project (http://mittencrabs.org.uk/distribution) and the Wakame data can be viewed with contextual information within MarLIN (http://www.marlin.ac.uk/speciesinformation.php?speciesID=4547). All species are included within the GB Non-Native Species Information Portal as factsheets: Chinese Mitten Crab (https://secure.fera.defra.gov.uk/nonnativespecies/factsheet/factsheet.cfm?speciesId=1379), Wakame (https://secure.fera.defra.gov.uk/nonnativespecies/factsheet/factsheet.cfm?speciesId=3643), Carpet Sea Squirt (https://secure.fera.defra.gov.uk/nonnativespecies/factsheet/factsheet.cfm?speciesId=1209)";
    String FreshFlag "0";
    String GBIF_UUID "83072c26-af4e-44a7-b373-0567f623081d";
    Float64 geospatial_lat_max 54.97;
    Float64 geospatial_lat_min 50.16;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 4.656;
    Float64 geospatial_lon_min -5.082;
    String geospatial_lon_units "degrees_east";
    String history 
"2025-03-09T23:06:18Z (local files)
2025-03-09T23:06:18Z http://erddap.eurobis.org/tabledap/gbif_14568.das";
    String infoUrl "None";
    String InputNotes "None";
    String institution "MBA, NBN";
    String keywords "aphia_id, BasisOfRecord, DayCollected, InstitutionCode, latitude, longitude, MonthCollected, ScientificName, time, YearCollected";
    String License "https://creativecommons.org/licenses/by/4.0/";
    String license 
"The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.";
    String Lineage "None";
    String MarineFlag "1";
    String modified_sync "2021-02-04 00:00:00";
    Float64 Northernmost_Northing 54.97;
    String OrigAbstract "None";
    String OrigDescr "None";
    String OrigDescrLang "None";
    String OrigDescrLangNL "None";
    String OrigLangCode "None";
    String OrigLangCodeExtended "None";
    String OrigLangID "None";
    String OrigTitle "None";
    String OrigTitleLang "None";
    String OrigTitleLangCode "None";
    String OrigTitleLangID "None";
    String OrigTitleLangNL "None";
    String Progress "In Progress";
    String PublicFlag "1";
    String ReleaseDate "None";
    String ReleaseDate0 "None";
    String RevisionDate "None";
    String SizeReference "190 records, 2 species";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 50.16;
    String standard_name_vocabulary "CF Standard Name Table v70";
    String StandardTitle "RISC and ALERT Marine Non-Native Species (Chinese Mitten Crab, Wakame and Carpet Sea Squirt) Records";
    String StatusID "1";
    String subsetVariables "ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,aphia_id";
    String summary "Recording Invasive Species Counts (RISC) alongside ALERT was launched in 2010 and includes on-line recording for 19 species including the Chinese Mitten Crab Eriocheir sinensis, Wakame Undaria pinnatifida and Carpet Sea Squirt Didemnum vexillum. The data is predominantly provided by members of the public but records are verified from photos by designated experts. No additional attribute data is included for the Carpet Sea Squirt. The recording forms for Chinese Mitten Crab and Wakame includes the option to provide abundance. Additionally for the Chinese Mitten Crab information on whether it is dead or alive is recorded and for Wakame attachment method (attached to boat, attached to other man-made surface, attach to natural surface or detached) is recorded.";
    String TerrestrialFlag "0";
    String time_coverage_end "2013-04-30T01:00:00Z";
    String time_coverage_start "1935-01-01T01:00:00Z";
    String title "RISC and ALERT Marine Non-Native Species (Chinese Mitten Crab, Wakame and Carpet Sea Squirt) Records";
    String UDate "2014-04-14";
    String VersionDate "None";
    String VersionDay "None";
    String VersionMonth "None";
    String VersionName "None";
    String VersionYear "None";
    String VlizCoreFlag "1";
    Float64 Westernmost_Easting -5.082;
  }
}

Using tabledap to Request Data and Graphs from Tabular Datasets

tabledap lets you request a data subset, a graph, or a map from a tabular dataset (for example, buoy data), via a specially formed URL. tabledap uses the OPeNDAP (external link)

Data Access Protocol (DAP) (external link)

and its selection constraints (external link)

The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.

(easy) You can get data by using the dataset's Data Access Form or Subset form. They make the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

Tabledap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/tabledap/pmelTaoDySst.htmlTable?longitude,latitude,time,station,wmo_platform_code,T_25&time>=2015-05-23T12:00:00Z&time<=2015-05-31T12:00:00Z
Thus, the query is often a comma-separated list of desired variable names, followed by a collection of constraints (e.g., variable<value), each preceded by '&' (which is interpreted as "AND").

For details, see the tabledap Documentation.

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