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| Dataset Title: | ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species
|
| Institution: | ICES (Dataset ID: ices_DATRAS_EVHOE) |
| Information: | Summary
| License
| FGDC
| ISO 19115
| Metadata
| Background
| Subset
| Files
| Make a graph
|
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 1997.0, 2010.0;
String long_name "YearCollected";
String units "None";
String units_uri "None";
}
MonthCollected {
Float32 actual_range 10.0, 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 8.7646464e+8, 1.29112356e+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 6.184, 17.55;
String long_name "TimeOfDay";
String units "None";
String units_uri "None";
}
MaximumDepth {
Float32 actual_range -9.0, 587.0;
String long_name "MaximumDepth";
String units "None";
String units_uri "None";
}
sex {
String long_name "sex";
String units "None";
String units_uri "None";
}
ObservedIndividualCount {
Float32 actual_range 1.0, 65300.0;
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 -11.34, -1.278;
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 43.7, 51.84;
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 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 AccessConstraints "ICES Data Policy: https://www.ices.dk/data/guidelines-and-policy/Pages/ICES-data-policy.aspx";
String Acronym "EVHOE";
String added_date "2011-01-04 13:45:44.463000";
String BrackishFlag "0";
String CDate "2010-12-22";
String cdm_data_type "Other";
String CheckedFlag "0";
String Citation "Fish trawl survey: ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species. ICES Database of trawl surveys (DATRAS). The International Council for the Exploration of the Sea, Copenhagen. 2010. Online source: http://ecosystemdata.ices.dk.";
String Comments "None";
String ContactEmail "None";
String Conventions "COARDS, CF-1.6, ACDD-1.3";
String creator_name "Holdsworth";
String CurrencyDate "None";
String DasID "2759";
String DasOrigin "Monitoring: field survey";
String DasType "Data";
String DasTypeID "1";
String DescrCompFlag "0";
String DescrTransFlag "0";
Float64 Easternmost_Easting -1.278;
String EmbargoDate "None";
String EngAbstract "The dataset includes age- and length-based catch per unit effort data for commercial fish species collected by the French trawl survey EVHOE.";
String EngDescr
"For the 1987 to 1996 period, the Survey EVHOE has been conducted in the Bay of Biscay on an annual basis with the exception of the years 1993 and 1996. It has been conducted in the third or fourth quarter except in 1991 where it took place in May. In 1988 two survey were conducted, one in May the other in October.
The Celtic Sea was surveyed from 1990 to 1994 but the sampling was restricted to a small geographical area. The duration is between 40 to 45 days depending on year and availability of ship. Since 1997, the survey covered all the Celtic Sea and Bay of Biscay during the 4th quarter.
The French demersal survey began in 1987. The survey area was first limited to the Bay of Biscay (ICES Divisions VIIh, VIIIa,b,c and d) and in 1990, the survey area was extended towards the north to cover the grounds of Celtic sea deeper than 100 meters (ICES Divisions VIIe,f,g,h and j).
Prior to 1997, the sampling designs were as follows: In the Bay of Biscay (ICES Divisions VIIh, VIIIa,b,c and d) a stratified sampling scheme was originally used.
The area was divided according to latitude into 3 blocks and the hauls were distributed in seven depth zones (15-30, 31-80, 81-120, 121-160, 161-200, 201-400, 401-600 m). 100 hauls were made at fixed locations and 35 at changeable stations from year to year. Since 1989, all the hauls (mean number by survey 135) are made at the same locations.
In the Celtic Sea (ICES Divisions VIIe,f,g,h and j) the sampling design was systematic, stations were located at the intersection points of a grid of lines 25 nautical miles apart both in latitude and in longitude. The mean number of sets was 56.
From 1997 onwards the whole area has been separated in 5 geographical strata or sectors: southern Bay of Biscay (GS) and northern Bay of Biscay (GN), southern Celtic Sea (CS), central Celtic sea (CC) and northern Celtic sea (CN). In each sector a depth-stratified sampling strategy has been adopted with 7 depth ranges: 0-30, 31-80, 81-120, 121-160, 161-200, 201-400 and 401-600 m.
The sampling design is a stratified random allocation. The number of hauls per stratum is optimised by a Neyman allocation taking into account the most important commercial species in the area (hake, monkfish and megrim). Minimum of two stations per stratum is sampled and 140 fishing stations are planned every year. This number of hauls is adjusted according to the ship time available at sea.
Catch weight and catch numbers were recorded for all species, only selected finfish and shellfish species were measured until 1990. Since 1991, all finfish and a selection of shellfish (mainly nephrops and squids) are measured.
Since 1997, the French survey has been carried out on the R/V Thalassa, a stern trawler of 73.7 m length by 14.9 m wide, gross tonnage of 3022 t. The fishing gear used is a GOV 36/47 without exocet Kite which is replaced by 6 additional floats. In average, the gear has a horizontal opening of 20 m and a vertical opening of 4 m. The doors are plane-oval with 1350 Kg.";
String FreshFlag "0";
Float64 geospatial_lat_max 51.84;
Float64 geospatial_lat_min 43.7;
String geospatial_lat_units "degrees_north";
Float64 geospatial_lon_max -1.278;
Float64 geospatial_lon_min -11.34;
String geospatial_lon_units "degrees_east";
String history
"2025-03-09T23:06:31Z (local files)
2025-03-09T23:06:31Z http://erddap.eurobis.org/erddap/tabledap/ices_DATRAS_EVHOE.html";
String infoUrl "None";
String InputNotes "None";
String institution "ICES";
String keywords "aphia_id, BasisOfRecord, DayCollected, InstitutionCode, latitude, longitude, MaximumDepth, MonthCollected, Notes, ObservedIndividualCount, ScientificName, sex, time, TimeOfDay, 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 51.84;
String OrigAbstract "None";
String OrigDescr "None";
String OrigDescrLang "English";
String OrigDescrLangNL "Engels";
String OrigLangCode "en";
String OrigTitle "None";
String OrigTitleLang "None";
String OrigTitleLangCode "None";
String OrigTitleLangNL "None";
String Progress "In Progress";
String PublicFlag "1";
String ReleaseDate "None";
String ReleaseDate0 "None";
String RevisionDate "None";
String SizeReference "More than 330,000 records";
String sourceUrl "(local files)";
Float64 Southernmost_Northing 43.7;
String standard_name_vocabulary "CF Standard Name Table v70";
String StandardTitle "ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species";
String StatusID "1";
String subsetVariables "ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,sex,aphia_id";
String summary "The dataset includes age- and length-based catch per unit effort data for commercial fish species collected by the French trawl survey EVHOE.";
String TerrestrialFlag "0";
String time_coverage_end "2010-11-30T13:26:00Z";
String time_coverage_start "1997-10-10T06:24:00Z";
String title "ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species";
String UDate "2022-08-11";
String VersionDate "None";
String VersionDay "None";
String VersionMonth "None";
String VersionName "None";
String VersionYear "None";
String VlizCoreFlag "1";
Float64 Westernmost_Easting -11.34;
}
}
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.