Catalogue PIGMA
ORHAGO beam trawl survey catch data : Bentho-demersal assemblages of the Bay of Biscay (North-eastern Atlantic) from 2007 to present.
The ORHAGO campaigns (Observation of the benthic aquatic resources of the Golfe de Gascogne) are designed to collect data on the composition, distribution and change in relative abundance of benthic fish fauna on the continental shelf (depth <100m) in November to December on a yearly basis. The ORHAGO survey was initiated in 2007 with the objective of developing a fishery-independent abundance index for flatfish species, with a particular focus on the common sole (Solea solea) of the Bay of Biscay. In accordance with the ICES-agreed gear for flatfish abundance surveys, ORHAGO employs a 4-meter-beam trawl with a chain mat, 50-millimeter mesh in the net, and 40-millimeter mesh in the cod-end. The sampling plan was designed to ensure full coverage of the common sole habitat in the Bay of Biscay during a period (November-December) for which fish behavior and distribution was suitable for obtaining an unbiased abundance index (young fish move offshore when coastal waters become colder and before the concentrations of the spawning season). The sampling design is a systematic sampling with 49 reference stations. The sampling design was validated in 2013 by the ICES Working Group on Beam Trawl Surveys (WGBEAM). Since 2013, the ORHAGO survey has been used to assess the status of the Bay of Biscay common sole stock (WGBIE, Working Group for the Bay of Biscay and the Iberian Waters Ecoregion).
Simple
- Date (Publication)
- 2007
- Date (Revision)
- 2025-10-23
- Other citation details
- Lecomte Jean Baptiste, Coupeau Yann, Biais Gerard, Pencreac'H-Cornou Anne-Sophie (2007). ORHAGO beam trawl survey catch data : Bentho-demersal assemblages of the Bay of Biscay (North-eastern Atlantic) from 2007 to present. SEANOE. https://doi.org/10.17882/100653
- Theme
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- Bay of Biscay
- Atlantic
- Bentho-demersal assemblages
- Demersal fish
- beam trawl survey
- Common sole
- benthic invertebrates
- WGBEAM
- WGBIE
- marine macro-litter
- exploited species
- ORHAGO
- Fisheries and aquaculture
- Use limitation
- CC-BY-ND (Creative Commons - Attribution, No modification)
- Use constraints
- Other restrictions
- Other constraints
- We do our best to ensure that the data is complete, accurate and useful. However, because the processing required to generate the data is complex, we cannot be liable for omissions or inaccuracies. The data and any related materials contained therein are provided “as is”, without warranty of any kind, either expressed or implied, including but not limited to, fitness for a particular purpose, non-interference, system integration, or non-infringement. The entire risk of use of the data shall be with the user. In case errors or incoherences be detected, please signal them at the following address : harmonie@ifremer.fr
- Date (Publication)
- Unique resource identifier
- 10.13155/109277
- Association Type
- Cross reference
- Initiative Type
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- Date (Publication)
- Unique resource identifier
- 10.1016/j.pocean.2023.102969
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- Association Type
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- Association Type
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- Cross reference
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- Metadata language
- English
- Topic category
-
- Oceans
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- Distribution format
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- OnLine resource
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Quality controlled data
(
WWW:DOWNLOAD-1.0-link--download
)
ORHAGO - 1 MB
- OnLine resource
- ICES Datras portal ( WWW:LINK )
- OnLine resource
- ELFIC : format description ( WWW:LINK )
- OnLine resource
- DOI of the product ( WWW:LINK-1.0-http--metadata-URL )
- OnLine resource
- Seanoe ( rel-canonical )
- Hierarchy level
- Dataset
- Statement
- 4m beam trawl
- File identifier
- seanoe:100653 XML
- Metadata language
- English
- Character set
- UTF8
- Hierarchy level
- Dataset
- Date stamp
- 2025-10-23
- Metadata standard name
- ISO 19115:2003/19139
- Metadata standard version
- 1.0
Overviews
Spatial extent
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W
Provided by
Associated resources
Not available