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Oceanographic cruise - EVRWE (Evaluation of Fishery Resources in Western Europe)
EVRWE is a multiannual survey with the following objectives:
- Building up time series of abundance indices for the main dermersal and benthic species in the Celtic Sea and the Bay of Biscay.
- Measuring inter-annual changes in their recruitment.
- Mapping the spatial distributions of the species and their inter-annual variations, as well as looking for the origin of this variability (biotic and/or abiotic parameters, fisheries impact).
- In the framework of the 'Bay of Biscay' challenge, the data collected are vital for understanding changes in faunal communities.
Simple
- Date ( Publication )
- 1987-09-30
- Identifier
- FR-DCSMM-PDS-EVHOE
- Presentation form
- Digital profile
- Purpose
-
EVHOE is a long-running cruise with the following objectives:
1) To draw up time series of indices of abundance for the main demersal and benthic species in the Celtic Sea and the Bay of Biscay.
2) To measure the inter-annual evolution of their recruitment.
3) To map distribution of the species and their inter-annual variations along with research into the origin of this variability (biotic and/or abiotic parameters, impact of fishing).
4) Within the context of the "Bay of Biscay" challenge, data collected is of essential importance for learning about the evolution of fauna. Standardised, daytime bottom-trawling campaigns cover the following geographical areas: Bay of Biscay, Celtic Sea, Bristol Channel and the southern St George’s Channel from -15 to -600m.
5) knowledge of bathypelagic fauna is further improved by nocturnal pelagic trawls at depth of over -2000m.
Associated projects : Fisheries evaluations, Fisheries ecosystems, SIH
- Credit
- IFREMER
- Status
- On going
- Maintenance and update frequency
- Annually
- Keywords ( Theme )
-
- Hake, monkfish, megrim
- Bottom-trawling
- Seasonal variability of abundance
- Seabirds
- Spatial distribution
- Cetacean
- GEMET - INSPIRE themes, version 1.0 GEMET - INSPIRE themes, version 1.0 ( Theme )
-
- Environmental monitoring facilities
- Sous-regions marines Sous-regions marines ( Place )
-
- /Metropolitan France/Celtic Seas
- /Metropolitan France/Bay of Biscay
- DCSMM : Type d'espace concerné DCSMM : Type d'espace concerné ( Theme )
-
- Pas d'espace particulier concerné
- DCSMM : Descripteurs DCSMM : Descripteurs ( Theme )
-
- D3: Commercially Exploited Species
- D1: Biodiversity
- D1: Birds, Marine Mammals and Turtles
- D1: Biodiversité - Mammifères
- DCSMM : Méthodes de recueil des données DCSMM : Méthodes de recueil des données ( Theme )
-
- Piégeage, capture
- Thèmes Sextant Thèmes Sextant ( Theme )
-
- /Human Activities/Oceanographical Cruises
- SIH - Types de jeu de données SIH - Types de jeu de données ( Theme )
-
- /Observed Data/Campaigns
- SIH - Façade maritime SIH - Façade maritime ( Theme )
-
- Atlantique
- Cadre Réglementaire - SIMM Cadre Réglementaire - SIMM ( Theme )
-
- Directive Cadre Stratégie pour le Milieu Marin (DCSMM)
- Thématiques - SIMM Thématiques - SIMM ( Theme )
-
- /Uses and Human Activities/Fisheries and aquaculture
- Type de jeux de donnée ODATIS Type de jeux de donnée ODATIS ( Theme )
-
- /in-situ observations/Sea cruises
- Access constraints
- Restricted
- Metadata language
- fr
- Character set
- UTF8
- Topic category
-
- Oceans
- Begin date
- 1987-09-30
))
- Supplemental Information
-
Financers :
IFREMER
Europe
Direction des Pêches Maritimes et de l'Aquaculture (DPMA)
- Distribution format
-
-
(
)
-
(
)
- OnLine resource
- Manual of Fishery Campaign Protocols ( WWW:LINK )
- OnLine resource
- Population and Community Indices EVHOE ( WWW:LINK )
- OnLine resource
- Catalogue of cruises : EVHOE ( WWW:LINK )
- OnLine resource
- Access to SIH fisheries cruises data ( WWW:LINK )
- OnLine resource
-
campagnes_EVHOE
(
OGC:WMS
)
EVHOE cruises (WMS)
- Hierarchy level
- Dataset
Conformance result
- Date ( Creation )
- 2012-01-16
- Explanation
- Not rated
- Pass
- No
- Statement
-
30-09-1987 : beginning of the first EVHOE campaign in the Bay of Biscay.
10-05-1988 : Beginning of EVHOE spring campaign. Two campaigns are undertaken in 1988.
23-09-1990 : As of this year, study area extended to include the Celtic Sea, up to latitude 51°15 North.
01-01-1993 : 1993 Campaign cancelled due to budget cuts.
24-09-1994 : Celtic Sea not sampled this year (damage to engine)
06-11-1995 : Celtic Sea not sampled this year (damage to engine)
01-01-1996 : Intercalibration between Thalassa 1 and the ne unit : Thalassa.
04-10-1997 : Change of vessel: Thalassa replaces Thalassa 1. Review of Objectives and sampling protocol.
Number of observation or measurement points : 155
7 layers, divided into sectors (26 in total), sampled during 155 hauls (in total) since 2005.
• Sampling plan(s) :
Random, stratified
• Precision on the type of data :
Pelagic biotope data
Primary production
Zooplankton
Ichtyoplankton
Small pelagic fish
All fish and invertebrates
Top predators
Macro-waste
• Parameter(s) observed or measured :
1. Temperature, salinity, fluorescence.
2. Number and size of particles.
3. Taxonomy and abundance of phyto and micro zooplankton.
4. Taxonomy and biomass per size class of meso-zooplankton.
5. Abundance, distribution and stages of anchovy and sardine eggs and larvae.
6. Speed and direction of water masses (drifting buoys).
7. Abundance, distribution, sizes, age, sex, maturity of small pelagic fish (sardine, anchovy, sprat, horse mackerel, mackerel, blue whiting,...).
8. Abundance and distribution of marine mammals.
9. Abundance and distribution of marine birds.
10. Nature and distribution of macro-waste
• Resolution of parameter(s) :
1, 5, 8, 9, 10: continuous, along the surface sampling route
1, 2, 3, 4, 5: stationary, at different depths and/or integrated throughout the depth
6: occasionally
7: continuous by acoustic and stationary by fishing
• Format(s):
The available data exist in the format: csv
Process step
- File identifier
- 709a4b9f-557e-46cb-9af2-d1453b491f98 XML
- Metadata language
- fr
- Character set
- UTF8
- Parent identifier
- Oceanographic cruises - Observations for fisheries monitoring 99e16a35-8090-4897-aa2b-c5c0951aabea
- Hierarchy level
- Series
- Date stamp
- 2022-02-15T15:26:41.725Z
- Metadata standard name
- ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
- 1.0
Overviews
Spatial extent
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