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                  <gco:CharacterString>Sur chaque façade maritime française, les campagnes en mer sont cadrées par les méthodologies du SIH (Système d'Informations Halieutiques) de l'Ifremer.

Les campagnes d'observation halieutique sont conduites selon des protocoles d'observation standardisés propres à chaque série, et disponibles en ligne depuis le site Archimer, https://archimer.ifremer.fr/

Les ressources et peuplements démersaux sont suivis le long de la majorité des côtes, à l'exception de la côte d'Azur et de la façade occidentale de la Corse, ces deux dernières zones ayant une plate-forme continentale très étroite.

A l'Ifremer, les premières séries d'observation standardisées ont débuté pendant la deuxième moitié des années 1970. Chaque campagne dure de quelques jours à plus d'un mois, selon les objectifs et les conditions d'observation.

Les données mises à disposition sur le site web du SIH sont les suivantes :
15-10-1980 : Début de la série de données pour NURSE
03-02-1985 : Début de la série de données pour RESSGASC
11-01-1986 : Début de la série de données pour IBTS
30-09-1987 : Début de la série de données pour EVHOE
04-10-1988 : Début de la série de données pour CGFS
15-05-1994 : Début de la série de données pour MEDITS
18-09-1995 : Début de la série de données pour NOURSEINE
01-03-1996 : Début de la série de données pour PALOURDES-GM
03-10-2000 : Début de la série de données pour COPER
07-04-2006 : Début de la série de données pour LANGOLF
02-11-2007 : Début de la série de données pour ORHAGO
24-06-2014 : Début de la série de données pour BARGIP
15-09-2014 : Début de la série de données pour CAMANOC
08-06-2016 : Début de la série de données pour NOURDEM
26-06-2016 : Début de la série de données pour PELMED
29-06-2017 : Début de la série de données pour COMOR
25-09-2017 : Début de la série de données pour NOURMONT
31-08-2018 : Début de la série de données pour NOURMED
17-09-2018 : Début de la série de données pour NOURCANCHE
26-04-2019 : Début de la série de données pour PELGAS
09-09-2019 : Début de la série de données pour NURSE-COTIER
09-01-2020 : Début de la série de données pour Stocks Crevettes

La liste n'est pas exhaustive et les données sont en cours d'intégration dans la base de données Harmonie.

Les campagnes de surveillance halieutique menées par l'Ifremer se décomposent en cinq catégories :
- des campagnes de chalutage de fond à grande ouverture verticale, destinées à l'observation des ressources et des communautés sur les plateaux et le haut des talus : IBTS, CGFS, EVHOE, MEDITS
- des campagnes d'évaluation des grands crustacés, en particulier le homard (échantillonnage au casier) : CRUSTAFLAM
- des campagnes visant des espèces benthiques comme les coquilles Saint-Jacques (campagnes de dragage), la palourde (benne Hamon en zone très côtière) ou les juvéniles de poissons plats (chalut à perche dans les zones très côtières) : NOURSOM, NOURSEINE, NOURMONT, NOURMANCHE, COMOR, COSB, COPER ou encore les crevettes (Guyane)
 - des campagnes ciblant les petits poissons pélagiques (acoustique et chalutage) : PELGAS et PELMED

• Plan(s) d’échantillonnage :
Aléatoire, stratifié

• Précision sur le type de donnée :
Indice d'abondance des espèces poissons et principaux invertébrés commerciaux; Données biologiques fines par individu; Données œufs et larves des petits pélagiques; Radiales prospection acoustique

• Paramètre(s) observé(s) ou mesuré(s) :
Composition spécifique et en taille des captures; Mesures individuelles (taille, sexe, maturité); Prélèvement de pièces pour âgeage

• Résolution du (ou des) paramètre(s) :
Par opération de pêche, prospection en continu (CUPES), analyse systématique des captures de pêche scientifiques

• Format(s) :
Les données disponibles existent sous le format : csv.</gco:CharacterString>
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