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Registros recuperados: 5
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Développement de l'aquaculture à Saint-Pierre et Miquelon : le cas d'étude de la pectiniculture - approche et méthodologies ArchiMer
Goraguer, Herle; Goulletquer, Philippe; Caisey, Xavier; Lazure, Pascal; Lajournade, M.; Lunven, Michel; Robert, Stephane; Rodriguez, Julien.
Tipo: Text
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00063/17413/14920.pdf
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Dimorphisme de croissance et mise en évidence d'effets familiaux chez l'ombrine ocellée, Sciaenops ocellatus, en Martinique ArchiMer
Rodriguez, Julien; Connan, Jean-paul; Dutto, Gilbert; Petton, Bruno; Falguiere, Jean-claude.
Tipo: Text
Ano: 2010 URL: http://archimer.ifremer.fr/doc/00020/13171/10229.pdf
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Méthode de cartographie quantitative des fonds marins par vidéo. Application au suivi des semis de Placopecten magellinacus en Rade de Miquelon. ArchiMer
Lunven, Michel; Robert, Stephane; Caisey, Xavier; Rodriguez, Julien; Detcheverry, Sebastien; Gaffet, Jean-dominique; Le Gall, Erwan; Vasquez, Mickael.
Ce poster présente une méthodologie d’investigation des fonds marin par vidéo sous marine. Le système est constitué d’un bâti intégrant une caméra, un projecteur, un altimètre ainsi que des pointeurs laser. Les images vidéo des fonds marins sont retransmises et enregistrées à bord du navire sur disque dur et magnétoscope numérique DVCAM. Lors des profils vidéo, le logiciel de gestion VIDEONAV permet de constituer un fichier de navigation intégrant les positions géographiques, le code temps du magnétoscope ainsi que la surface visualisée calculée à partir de la hauteur de prise de vue par rapport au fond. En temps différé, VIDEONAV permet le rejeu de la navigation et des bandes vidéo associées dans le but de compléter ou de générer des fichiers de...
Tipo: Text
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00144/25516/23656.pdf
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Monitoring of sea scallops Placopecten magellanicus in bottom seeding trials using video in Miquelon bay, Saint Pierre et Miquelon, France ArchiMer
Robert, Stephane; Le Moine, Olivier; Lunven, Michel; Caisey, Xavier; Gaffet, Jean-dominique; Le Gall, Erwan; Vasquez, Mickael; Rodriguez, Julien; Detcheverry, Sebastien; Goulletquer, Philippe.
Placopecten magellanicus production in Saint Pierre et Miquelon (NW North Atlantic) has been developed through direct seeding of juveniles on leased areas. However, most of the culture occurs in deep water ranging from 30 to 70 meters, which requires a monitoring by video to facilitate the grow-out and survival evaluation. In August 2008, a submersible leaded structure was connected by a video cable to the surface and observation screen was defined through the video, an altimeter and two lasers. The pictures were recorded on board on hard drive and digital video recorder DVCAM, and data were georeferenced by VIDEONAV software. Analysing the video tapes allows to establish a thematic database on the ground structure, presence or absence of seeded and wild...
Tipo: Text Palavras-chave: Scallops; Placopecten magellanicus; GIS; Monitoring; Miquelon Bay.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/00134/24544/22576.pdf
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Performances d'élevage de la moule (Mytilus edulis) en Manche/Atlantique. Recensement et interprétation. 1 : Synthèse et rapport ArchiMer
Rodriguez, Julien.
The objective of this study is to explain the decrease in mussel production, along the French coasts of Atlantic and the English Channel, through existing data and additional inquiries. This decrease in 2010 and 2011 had two components : a growth deficit and losses of mussels, due to detachment and mortality. Both inter-annual and geographic differences in rearing yields seem to be linked to phytoplankton abundance and turbidity. In 2011, severe droughts have impacted the level of rivers effluents to marine, limiting nutrients inputs. In 2010, frequent winds from east seem to have maintained the phytoplankton blooms away from the coasts. Detachment and mortalities of mussels might be due to physiological stress or weakening linked to poor environmental...
Tipo: Text Palavras-chave: Mytiliculture; Bouchots; Moule; Mytilus edulis; Performances d’élevage; Bassins conchylicoles; Croissance; Décrochage; Mortalité; Byssus; Prédation; Réseaux; Sécheresse; Régimes de vents; Mussel farming; Bouchot; Mytilus edulis; Growth; Mortality; Byssus; Detachment; Meteorological conditions.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00142/25341/23422.pdf
Registros recuperados: 5
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