Oceanographic cruise - IBTS (International Bottom Trawl Survey) - English Channel North Sea
Like all EU Member States, France is obliged to collect and manage the data necessary to conduct the Common Fisheries Policy to assess the abundance and distribution of stocks. A "national multi-annual basic data collection programme" has therefore been set up in which scientific campaigns such as IBTS are integrated. This campaign is carried out in coordination with most of the countries bordering the North Sea, in the framework of the European Fisheries Data Collection Programme (DC-MAP). The research carried out over the last few decades has led to a shift away from fisheries issues stricto sensu (monospecific and geographically limited studies) towards a more integrated vision of the various components of marine ecosystems. This openness results from a desire to better understand the dynamics of exploited marine resources in order to improve diagnoses and management recommendations. The acquisition of data from these compartments at different stations makes it possible to establish a map of biotic and abiotic environmental parameters in the Channel and North Sea during the winter period, a period that is usually little studied, but which is crucial.
Simple
- Title
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Oceanographic cruise - IBTS (International Bottom Trawl Survey) - English Channel North Sea
- Date (Publication)
- 2022-02-08
- Citation identifier
- FR-DCSMM-PDS-IBTS
- Presentation form
- Digital profile
- Abstract
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Like all EU Member States, France is obliged to collect and manage the data necessary to conduct the Common Fisheries Policy to assess the abundance and distribution of stocks. A "national multi-annual basic data collection programme" has therefore been set up in which scientific campaigns such as IBTS are integrated. This campaign is carried out in coordination with most of the countries bordering the North Sea, in the framework of the European Fisheries Data Collection Programme (DC-MAP). The research carried out over the last few decades has led to a shift away from fisheries issues stricto sensu (monospecific and geographically limited studies) towards a more integrated vision of the various components of marine ecosystems. This openness results from a desire to better understand the dynamics of exploited marine resources in order to improve diagnoses and management recommendations. The acquisition of data from these compartments at different stations makes it possible to establish a map of biotic and abiotic environmental parameters in the Channel and North Sea during the winter period, a period that is usually little studied, but which is crucial.
- Credit
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IFREMER
- Status
- On going
- 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
- Annually
- Theme
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Fishery monitoring
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GOV trawls
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Zooplankton, Benthic invertebrates, Fish
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Seabirds, Marine mammals
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Marine waste
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Eastern Channel
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North Sea
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Assessment of fish stocks
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Health status of the ecosystem
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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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D3: Commercially Exploited Species
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D10: Marine Litter
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D1: Biodiversity
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D1: Biodiversité - Mammifères
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DCSMM : Méthodes de recueil des données
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Observation indirecte
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Piégeage, capture
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Thèmes Sextant
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/Human Activities/Oceanographical Cruises
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SIH - Types de jeu de données
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/Observed Data/Campaigns
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SIH - Façade maritime
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Manche - Mer du Nord
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Cadre Réglementaire - SIMM
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Marine Strategy Framework Directive (MSFD)
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Thématiques - SIMM
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/Uses and Human Activities/Fisheries and aquaculture
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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
- Language
- Français
- Character set
- UTF8
- Topic category
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- Oceans
- Begin date
- 1986-01-11
- Supplemental Information
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Financers :
IFREMER
Europe
Direction Générale des Affaires Maritimes, de la Pêche et de l'Aquaculture (DGAMPA)
- Distribution format
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Name Version
- OnLine resource
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Protocol Linkage Name WWW:LINK
http://archimer.ifremer.fr/doc/00036/14708/12014.pdf Manual for the international bottom trawl surveys
WWW:LINK
https://sih-indices-campagnes.ifremer.fr/source/zone.action?facade=merdunord Population and Community Indices IBTS
http://dx.doi.org/10.18142/17 Catalogue of cruises : IBTS
OGC:WMS
https://sextant.ifremer.fr/services/wms/sismer campagnes_IBTS
WWW:LINK
https://sih.ifremer.fr/prive/Acces-aux-donnees/Extractions/Campagnes/Donnees-Campagnes-halieutiques Access to SIH fisheries cruises data
- Hierarchy level
- Dataset
Conformance result
- Title
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Inspire specifications
- Date (Creation)
- 2012-01-16
- Explanation
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Not rated
- Pass
- Statement
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The main objectives are :
- to build up time series of abundance indices for the main commercial species in the North Sea (assessment of the main commercial fish stocks in the North Sea: whiting, cod, haddock, Norway pout, herring, sprat, mackerel, plaice).
- calculation of the larval index for herring and sprat.
The complementary objectives are :
- egg sampling with CUFES (Continuous Underwater Fish Eggs Sampling) in the North Sea.
- study of the distribution and relative winter abundance of marine mammals and birds in the North Sea.
-Recording of acoustic data (for later analysis).
The associated project is "International Bottom Trawl Survey - Assessments of EU and non-EU managed fisheries. Fisheries Information System".
01-01-1960 : The first cruises to monitor juvenile herring are set up by the Netherlands and Germany. These IYHS (International Young Herring Survey) cruises are coordinated by the ICES (International Council for the Exploitation of the Sea).
01-01-1962 : Gradually, the other riparian countries join this programme and the study area is extended to the entire North Sea. Other species are included in the monitoring and the surveys are renamed IYFS (International Bottom Trawl Survey).
01-01-1976 : France joins this programme and covers two important areas for the French fishery in the first quarter of each year, one in the southern North Sea and the other in Western Scotland.
01-01-1980 : A working group in charge of coordinating the North Sea surveys and analysing the data is created. This is the official start of this series of monitoring campaigns.
01-01-1992 : In order to ensure a better coordination of all the campaigns set up by the countries at different periods of the year, both in the North Sea and in the North-West Atlantic, it was decided to create a common working group in charge of analysing the data.
01-01-1996 : The results of this bi-annual sampling in the North Sea are analysed and ICES concludes to continue the two annual campaigns by redistributing the effort of the participating countries which keep a campaign either in the first quarter like France, or in the second quarter like France.
01-01-1997 : From this year onwards, the French cruise takes place once a year during the winter period. It is responsible for sampling the southern North Sea.
01-01-2007 : The sampling area allocated to France and the Netherlands is extended to the Eastern Channel.
01-01-2015 : Replacement of the vessel 'Gwen Drez' by the vessel 'Thalassa II'.
01-01-2017: Reduction in the number of days at sea (23 days compared to 30 previously)
For the collection of data on waste: analysis of data by category, mapping and trends according to a protocol harmonised at European level :
- Protocol validated since 1994 (MEDITS) and 1995 (IBTS/EVHOE)
- Protocol harmonised at European level (mesh size, protocol, trawls)
- Protocol adopted for the implementation of the DCSMM at European level
Limitations : system to be completed locally for shallow waters (0-20 metres)
• Sampling plan(s) :
Random, stratified
• Specification of data type :
- For fauna:
Melanogrammus aeglefinus; Merlangius merlangus; Gadus morhua; Trisopterus esmarki; Clupea harengus; sprattus sprattus; scomber scombrus; Pleuronectes platessa
Seabirds
Zooplankton; benthic invertebrates; fish
Marine mammals
- For litter :
Inventory of different types of waste (plastics, glass, metal, plastic bottles, leather and fabrics, fishing gear, miscellaneous)
• Parameter(s) observed or measured:
- For fauna :
Counting of juveniles. Otolith sampling
Observation on board the vessel
Presence in the zooplankton sample since 2008; presence and determination of benthic invertebrate fish
- For litter :
Density
• Resolution of parameter(s) :
- For fauna :
Per fishing operation, systematic analysis of scientific fishing catches
- For litter :
Density per hectare
• Format(s):
The available data exist in the format: csv
Metadata
- File identifier
- db467716-0d8a-4626-ab07-654de3df06ec
- Metadata language
- Français
- Other language
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Language Character encoding English UTF8
- Character set
- UTF8
- Parent identifier
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Campagnes océanographiques - Observations pour la surveillance halieutique
99e16a35-8090-4897-aa2b-c5c0951aabea
- Hierarchy level
- Series
- Date stamp
- 2023-09-26T14:08:59.21Z
- 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