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   set  data   graph     files  ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species    ?   F   I   M   background (external link) RSS Subscribe ICES ices_DATRAS_EVHOE

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL AccConstrDescription String 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.
attribute NC_GLOBAL AccConstrDisplay String This dataset is licensed under a Creative Commons Attribution 4.0 International License.
attribute NC_GLOBAL AccConstrEN String Attribution (CC BY)
attribute NC_GLOBAL AccessConstraint String Attribution (CC BY)
attribute NC_GLOBAL AccessConstraints String ICES Data Policy: https://www.ices.dk/data/guidelines-and-policy/Pages/ICES-data-policy.aspx
attribute NC_GLOBAL Acronym String EVHOE
attribute NC_GLOBAL added_date String 2011-01-04 13:45:44.463000
attribute NC_GLOBAL BrackishFlag String 0
attribute NC_GLOBAL CDate String 2010-12-22
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL CheckedFlag String 0
attribute NC_GLOBAL Citation String 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.
attribute NC_GLOBAL Comments String None
attribute NC_GLOBAL ContactEmail String None
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_name String Holdsworth
attribute NC_GLOBAL CurrencyDate String None
attribute NC_GLOBAL DasID String 2759
attribute NC_GLOBAL DasOrigin String Monitoring: field survey
attribute NC_GLOBAL DasType String Data
attribute NC_GLOBAL DasTypeID String 1
attribute NC_GLOBAL DescrCompFlag String 0
attribute NC_GLOBAL DescrTransFlag String 0
attribute NC_GLOBAL Easternmost_Easting double -1.278
attribute NC_GLOBAL EmbargoDate String None
attribute NC_GLOBAL EngAbstract String The dataset includes age- and length-based catch per unit effort data for commercial fish species collected by the French trawl survey EVHOE.
attribute NC_GLOBAL EngDescr String 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.
attribute NC_GLOBAL FreshFlag String 0
attribute NC_GLOBAL geospatial_lat_max double 51.84
attribute NC_GLOBAL geospatial_lat_min double 43.7
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -1.278
attribute NC_GLOBAL geospatial_lon_min double -11.34
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String None
attribute NC_GLOBAL InputNotes String None
attribute NC_GLOBAL institution String ICES
attribute NC_GLOBAL keywords String aphia_id, BasisOfRecord, DayCollected, InstitutionCode, latitude, longitude, MaximumDepth, MonthCollected, Notes, ObservedIndividualCount, ScientificName, sex, time, TimeOfDay, YearCollected
attribute NC_GLOBAL License String https://creativecommons.org/licenses/by/4.0/ (external link)
attribute NC_GLOBAL license String 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.
attribute NC_GLOBAL Lineage String None
attribute NC_GLOBAL MarineFlag String 1
attribute NC_GLOBAL modified_sync String 2021-02-04 00:00:00
attribute NC_GLOBAL Northernmost_Northing double 51.84
attribute NC_GLOBAL OrigAbstract String None
attribute NC_GLOBAL OrigDescr String None
attribute NC_GLOBAL OrigDescrLang String English
attribute NC_GLOBAL OrigDescrLangNL String Engels
attribute NC_GLOBAL OrigLangCode String en
attribute NC_GLOBAL OrigTitle String None
attribute NC_GLOBAL OrigTitleLang String None
attribute NC_GLOBAL OrigTitleLangCode String None
attribute NC_GLOBAL OrigTitleLangNL String None
attribute NC_GLOBAL Progress String In Progress
attribute NC_GLOBAL PublicFlag String 1
attribute NC_GLOBAL ReleaseDate String None
attribute NC_GLOBAL ReleaseDate0 String None
attribute NC_GLOBAL RevisionDate String None
attribute NC_GLOBAL SizeReference String More than 330,000 records
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 43.7
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL StandardTitle String ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species
attribute NC_GLOBAL StatusID String 1
attribute NC_GLOBAL subsetVariables String ScientificName,BasisOfRecord,YearCollected,MonthCollected,DayCollected,sex,aphia_id
attribute NC_GLOBAL summary String The dataset includes age- and length-based catch per unit effort data for commercial fish species collected by the French trawl survey EVHOE.
attribute NC_GLOBAL TerrestrialFlag String 0
attribute NC_GLOBAL time_coverage_end String 2010-11-30T13:26:00Z
attribute NC_GLOBAL time_coverage_start String 1997-10-10T06:24:00Z
attribute NC_GLOBAL title String ICES French Southern Atlantic Bottom Trawl Survey for commercial fish species
attribute NC_GLOBAL UDate String 2022-08-11
attribute NC_GLOBAL VersionDate String None
attribute NC_GLOBAL VersionDay String None
attribute NC_GLOBAL VersionMonth String None
attribute NC_GLOBAL VersionName String None
attribute NC_GLOBAL VersionYear String None
attribute NC_GLOBAL VlizCoreFlag String 1
attribute NC_GLOBAL Westernmost_Easting double -11.34
variable ScientificName   String  
attribute ScientificName long_name String ScientificName
attribute ScientificName sdn_P02_name String SeaDataNet biological format biotic parameters
attribute ScientificName sdn_P02_uri String https://vocab.nerc.ac.uk/collection/P02/current/BPRP/ (external link)
attribute ScientificName sdn_P02_urn String SDN:P02::BPRP
attribute ScientificName sdn_parameter_name String Taxon of biological entity specified elsewhere
attribute ScientificName sdn_parameter_uri String https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/ (external link)
attribute ScientificName sdn_parameter_urn String SDN:P01::SCNAME01
attribute ScientificName sdn_uom_name String Not applicable
attribute ScientificName sdn_uom_uri String https://vocab.nerc.ac.uk/collection/P06/current/XXXX/ (external link)
attribute ScientificName sdn_uom_urn String SDN:P06::XXXX
attribute ScientificName standard_name String scientificname
attribute ScientificName units String Not applicable
attribute ScientificName units_uri String https://vocab.nerc.ac.uk/collection/P01/current/SCNAME01/ (external link)
variable BasisOfRecord   String  
attribute BasisOfRecord long_name String BasisOfRecord
attribute BasisOfRecord units String None
attribute BasisOfRecord units_uri String None
variable InstitutionCode   String  
attribute InstitutionCode long_name String InstitutionCode
attribute InstitutionCode units String None
attribute InstitutionCode units_uri String None
variable YearCollected   float  
attribute YearCollected actual_range float 1997.0, 2010.0
attribute YearCollected long_name String YearCollected
attribute YearCollected units String None
attribute YearCollected units_uri String None
variable MonthCollected   float  
attribute MonthCollected actual_range float 10.0, 12.0
attribute MonthCollected long_name String MonthCollected
attribute MonthCollected units String None
attribute MonthCollected units_uri String None
variable DayCollected   float  
attribute DayCollected actual_range float 1.0, 31.0
attribute DayCollected long_name String DayCollected
attribute DayCollected units String None
attribute DayCollected units_uri String None
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 8.7646464E8, 1.29112356E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time time_precision String 1970-01-01T00:00:00Z
attribute time units String seconds since 1970-01-01T00:00:00Z
attribute time units_uri String https://vocab.nerc.ac.uk/collection/P01/current/CJDY1101 (external link)
variable TimeOfDay   float  
attribute TimeOfDay actual_range float 6.184, 17.55
attribute TimeOfDay long_name String TimeOfDay
attribute TimeOfDay units String None
attribute TimeOfDay units_uri String None
variable MaximumDepth   float  
attribute MaximumDepth actual_range float -9.0, 587.0
attribute MaximumDepth long_name String MaximumDepth
attribute MaximumDepth units String None
attribute MaximumDepth units_uri String None
variable sex   String  
attribute sex long_name String sex
attribute sex units String None
attribute sex units_uri String None
variable ObservedIndividualCount   float  
attribute ObservedIndividualCount actual_range float 1.0, 65300.0
attribute ObservedIndividualCount long_name String ObservedIndividualCount
attribute ObservedIndividualCount units String http://rs.tdwg.org/dwc/terms/individualCount (external link)
attribute ObservedIndividualCount units_uri String http://rs.tdwg.org/dwc/terms/individualCount (external link)
variable Notes   String  
attribute Notes long_name String Notes
attribute Notes units String None
attribute Notes units_uri String None
variable longitude   float  
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -11.34, -1.278
attribute longitude axis String X
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
attribute longitude units_uri String https://vocab.nerc.ac.uk/collection/P01/current/ALONZZ01 (external link)
variable latitude   float  
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float 43.7, 51.84
attribute latitude axis String Y
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
attribute latitude units_uri String https://vocab.nerc.ac.uk/collection/P01/current/ALATZZ01 (external link)
variable aphia_id   float  
attribute aphia_id long_name String aphia_id
attribute aphia_id sdn_P02_name String SeaDataNet biological format biotic parameters
attribute aphia_id sdn_P02_uri String https://vocab.nerc.ac.uk/collection/P02/current/BPRP/ (external link)
attribute aphia_id sdn_P02_urn String SDN:P02::BPRP
attribute aphia_id sdn_parameter_name String Identifier (LSID) of biological entity specified elsewhere
attribute aphia_id sdn_parameter_uri String https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/ (external link)
attribute aphia_id sdn_parameter_urn String SDN:P01::SNANID01
attribute aphia_id sdn_uom_name String Not applicable
attribute aphia_id sdn_uom_uri String https://vocab.nerc.ac.uk/collection/P06/current/XXXX/ (external link)
attribute aphia_id sdn_uom_urn String SDN:P06::XXXX
attribute aphia_id standard_name String aphia_id
attribute aphia_id units String Not applicable
attribute aphia_id units_uri String https://vocab.nerc.ac.uk/collection/P01/current/SNANID01/ (external link)

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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