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| Dataset Title: | Giant Devil Rays in the North-Western Mediterranean Sea
|
| Institution: | None (Dataset ID: zd_1370) |
| Range: | longitude = 5.855 to 19.0°E, latitude = 36.28 to 44.3°N, time = 2009-07-21T15:11:21Z to 2013-08-07T10:34:16Z |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Data Access Form
| Files
|
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![[The graph you specified. Please be patient.]](https://erddap.eurobis.org/erddap/tabledap/zd_1370.png?longitude,latitude,YearCollected&time%3E=2013-08-01T00%3A00%3A00Z&time%3C=2013-08-08T00%3A00%3A00Z&.draw=markers&.marker=5%7C5&.color=0x000000&.colorBar=%7C%7C%7C%7C%7C&.bgColor=0xffccccff)
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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 2009.0, 2013.0;
String long_name "YearCollected";
String units "None";
String units_uri "None";
}
MonthCollected {
Float32 actual_range 1.0, 8.0;
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 1.248189081e+9, 1.375871656e+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";
}
TimeOfDay {
Float32 actual_range 0.0, 17.25;
String long_name "TimeOfDay";
String units "None";
String units_uri "None";
}
ObservedIndividualCount {
Float32 actual_range 1.0, 18.0;
String long_name "ObservedIndividualCount";
String units "http://rs.tdwg.org/dwc/terms/individualCount";
String units_uri "http://rs.tdwg.org/dwc/terms/individualCount";
}
Notes {
String long_name "Notes";
String units "None";
String units_uri "None";
}
longitude {
String _CoordinateAxisType "Lon";
Float32 actual_range 5.855, 19.0;
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 36.28, 44.3;
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 "24";
String AccConstrDescription "This license lets others remix, tweak, and build upon your work non-commercially, and although their new works must also acknowledge you and be non-commercial, they don’t have to license their derivative works on the same terms";
String AccConstrDisplay "This dataset is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.";
String AccConstrEN "Attribution-NonCommercial (CC BY-NC)";
String AccessConstraint "Attribution-NonCommercial (CC BY-NC)";
String AccessConstraints "None";
String Acronym "None";
String added_date "2018-03-13 10:00:19.767000";
String BrackishFlag "0";
String CDate "2017-10-02";
String cdm_data_type "Other";
String CheckedFlag "0";
String Citation "Notarbartolo di Sciara, G. 2016. Giant Devil Rays in the North-Western Mediterranean Sea. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1370) on yyyy-mm-dd.";
String Comments "None";
String ContactEmail "None";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_name "Notarbartolo di Sciara";
String CurrencyDate "None";
String DasID "5824";
String DasOrigin "Research: field survey";
String DasType "Data";
String DasTypeID "1";
String DateLastModified "{'date': '2025-02-14 01:35:29.490225', 'timezone_type': 1, 'timezone': '+01:00'}";
String DescrCompFlag "0";
String DescrTransFlag "0";
Float64 Easternmost_Easting 19.0;
String EmbargoDate "None";
String EngAbstract "Original provider: Giuseppe Notarbartolo di Sciara, Tethys Research Institute Dataset credits: Tethys Research Institute Abstract: The giant devil ray <i>Mobula mobular</i>, the only Mediterranean mobulid, is subject to mortality caused by directed and accidental captures in fisheries throughout the region. Whilst the combination of human impacts, limited range and a low reproductive potential is not inconsistent with its endangered listing, there are insufficient data to enable a quantitative assessment of trends. Without this, it is difficult to assess and prioritise threats and develop effective conservation actions.";
String EngDescr "Using results from aerial surveys conducted between 2009 and 2014 over the Ligurian, Corsican, Sardinian, northern and central Tyrrhenian seas (626,228 km2), this study provides the first quantitative information on giant devil ray abundance and habitat choice in the western Mediterranean. Devil rays were observed in all seasons except winter, with their estimated abundance in the study area peaking in summer. The overall uncorrected mean density in the study area during summer was estimated at 0.0257 individuals km-2 (range: 0.017–0.044), resulting in a total abundance estimate of 6,092 (12.7%CV) individuals at the surface; once corrected for availability bias, this estimate indicates a summer presence of >12,700 devil rays in the study area. Rays were mostly observed alone even if occasionally, larger aggregations up to a maximum of 18 individuals were observed. Although observed throughout the study area, spatial modelling identified their preferred habitat to be over a broad strip connecting the Tuscan Archipelago to Eastern Sardinia, over a wide range of water depths ranging from 10 to 2000m. The observed seasonal changes in giant devil ray distribution in this study, combined with similar evidence from other areas in the Mediterranean, support the hypothesis that the species undertakes latitudinal migrations across the region, taking advantage of highly productive waters in the north during summer, and warmer southern waters during winter. Supplemental information: Some records do not have time part.";
String FreshFlag "0";
String GBIF_UUID "c9b33318-2033-4f94-afcf-e88ba2ddb272";
Float64 geospatial_lat_max 44.3;
Float64 geospatial_lat_min 36.28;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max 19.0;
Float64 geospatial_lon_min 5.855;
String geospatial_lon_units "degrees_east";
String history
"2025-03-09T23:29:21Z (local files)
2025-03-09T23:29:21Z http://erddap.eurobis.org/tabledap/zd_1370.das";
String infoUrl "None";
String InputNotes "None";
String institution "None";
String keywords "aphia_id, BasisOfRecord, DayCollected, InstitutionCode, latitude, longitude, MonthCollected, Notes, ObservedIndividualCount, ScientificName, time, TimeOfDay, YearCollected";
String License "https://creativecommons.org/licenses/by-nc/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 44.3;
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 "Completed";
String PublicFlag "1";
String ReleaseDate "None";
String ReleaseDate0 "None";
String RevisionDate "None";
String SizeReference "298 records";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 36.28;
String standard_name_vocabulary "CF Standard Name Table v70";
String StandardTitle "Giant Devil Rays in the North-Western Mediterranean Sea";
String StatusID "1";
String subsetVariables "ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,aphia_id";
String summary "Original provider: Giuseppe Notarbartolo di Sciara, Tethys Research Institute Dataset credits: Tethys Research Institute Abstract: The giant devil ray <i>Mobula mobular</i>, the only Mediterranean mobulid, is subject to mortality caused by directed and accidental captures in fisheries throughout the region. Whilst the combination of human impacts, limited range and a low reproductive potential is not inconsistent with its endangered listing, there are insufficient data to enable a quantitative assessment of trends. Without this, it is difficult to assess and prioritise threats and develop effective conservation actions.";
String TerrestrialFlag "0";
String time_coverage_end "2013-08-07T10:34:16Z";
String time_coverage_start "2009-07-21T15:11:21Z";
String title "Giant Devil Rays in the North-Western Mediterranean Sea";
String UDate "2017-12-13";
String VersionDate "None";
String VersionDay "None";
String VersionMonth "None";
String VersionName "None";
String VersionYear "None";
String VlizCoreFlag "1";
Float64 Westernmost_Easting 5.855;
}
}
Data Access Protocol (DAP) and its
selection constraints.
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.
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.