Oceanographic cruise - NOURSOM (NOURriceries Baie de SOMme)
The objective of this cruise, which has been taking place in the English Channel - Baie de somme since 1980, over 5 days in September, is to evaluate the natural multi-year fluctuations of the stands and to analyze the possible impact of the nuclear power plant on the marine environment and resources. It makes it possible to determine annual indices of abundance and distribution of flatfish and other species (shrimp, pout, whiting).
Simple
- Title
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Oceanographic cruise - NOURSOM (NOURriceries Baie de SOMme)
- Date (Publication)
- 2015-10-15
- Citation identifier
- FR-DCSMM-PDS-NOURSOM
- Presentation form
- Digital profile
- Abstract
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The objective of this cruise, which has been taking place in the English Channel - Baie de somme since 1980, over 5 days in September, is to evaluate the natural multi-year fluctuations of the stands and to analyze the possible impact of the nuclear power plant on the marine environment and resources. It makes it possible to determine annual indices of abundance and distribution of flatfish and other species (shrimp, pout, whiting).
- Credit
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IFREMER
- Status
- Completed
- Point of contact
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Organisation name Individual name Electronic mail address Role IFREMER
IFREMER SIH
Author IFREMER
IFREMER SIH
Publisher
- Maintenance and update frequency
- Historical
- Theme
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Indicators
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Population
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Communauty
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Nuclear power plant
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GEMET - INSPIRE themes, version 1.0
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Environmental monitoring facilities
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Sous-regions marines
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/Metropolitan France/Channel-North Sea
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DCSMM : Type d'espace concerné
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Pas d'espace particulier concerné
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DCSMM : Descripteurs
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D1: Deep-sea benthic habitats
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D3: Commercially Exploited Species
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DCSMM : Méthodes de recueil des données
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Observation directe
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Piégeage, capture
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Observation par transect
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Thèmes Sextant
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/Human Activities/Coastal monitoring networks
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SIH - Façade maritime
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Manche - Mer du Nord
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SIH - Types de jeu de données
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/Observed Data/Campaigns
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Thématiques - SIMM
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/Environmental Status/Pollution
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/Uses and Human Activities/Fisheries and aquaculture
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/Environmental Status/Species
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Type de jeux de donnée ODATIS
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/in-situ observations/Sea cruises
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- Access constraints
- Restricted
- Association Type
- Cross reference
- Initiative Type
- Platform
- Language
- Français
- Character set
- UTF8
- Topic category
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- Environment
- Begin date
- 1987-03-01
- Supplemental Information
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Financers :
EDF
IFREMER
- Distribution format
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Name Version
- OnLine resource
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Protocol Linkage Name WWW:LINK
http://archimer.ifremer.fr/doc/2009/rapport-7293.pdf The state of exploited communities off the French coast
WWW:LINK
https://sih-indices-campagnes.ifremer.fr/ Population and community indices from fisheries monitoring cruises in which Ifremer participates
- Hierarchy level
- Dataset
Conformance result
- Title
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Inspire specifications
- Date (Creation)
- Explanation
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Not rated
- Pass
- Statement
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Sampling is carried out using 3-metre (CP3) and 2-metre (CP2) beam trawls fitted with a scraper (Cochard 2002). The sampling protocol provides for 50 hauls distributed in the 4 strata (monitored areas). 34 hauls were carried out with the CP3 outside the bay, and 16 with the CP2 inside the bay and in its immediate vicinity. At each haul, all the species caught are sorted and the individuals are counted and weighed. All fish of commercial interest are measured.
Changes in strategy can affect the data collected. Thus the sampling effort, which was higher in the early years (60 or so tows), was reduced from 1998 onwards (50 tows) and the D stratum was removed. A total of 81 taxa were identified: 46 were fish and 35 were invertebrates.
Within the framework of the SIH cruises, population indicators are presented for the 36 species encountered in at least 5% of the catches per haul and whose density is at least equal to 5 individuals/km2 . These are divided into 26 species of fish, 3 species of cephalopod molluscs and 7 species of crustaceans. Size indicators are presented for a smaller number of fish species of commercial interest.
• Sample plan(s) :
Stratified.
• Precision of data type :
Abundance
• Parameter(s) observed or measured:
Size, age, density/km².
Evolution of species, biodiversity.
• Resolution of parameter(s) :
Density, biological characteristics
• Format(s):
The available data exist in the format: csv
Metadata
- File identifier
- 98ac17c5-8d70-455e-9496-aafb0dd4ae17
- Metadata language
- Français
- Other language
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Language Character encoding English
- Character set
- UTF8
- Parent identifier
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Campagnes océanographiques - Observations pour la surveillance halieutique
99e16a35-8090-4897-aa2b-c5c0951aabea
- Hierarchy level
- Dataset
- Date stamp
- 2023-09-26T13:08:28.541Z
- Metadata standard name
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ISO 19115:2003/19139 - SEXTANT
- Metadata standard version
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1.0
- Metadata author
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Organisation name Individual name Electronic mail address Role IFREMER SIH
Local service desk