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| Morizur, Yvon; Ogor, Andre; Lespagnol, Patrick. |
| A patent was registered in 1991 for using bar codes to make up fish measuring board. Collection of data such as the length of the captured fish and sometimes their ages are required in order to manage fishery resources. It is a time-consuming operation as this work is usually carried out throughout the year for each species. The computerization of this phase has been the subject of much research work. Electronic fish measuring boards have been developed in Scotland, Canada, and Spain but they have not spread for a number of reasons. Going beyond these developments, IFREMER designed a more efficient and new open-ended fish measuring system - the ichthyometer - which features higher flexibility by using the bar code principle |
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| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/publication-2347.pdf |
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| Dupré, Stephanie; Loubrieu, Benoit; Pierre, C.; Scalabrin, Carla; Guerin, Charline; Ehrhold, Axel; Ogor, Andre; Gautier, Emeric; Ruffine, Livio; Biville, Romain; Saout, Johan; Breton, C; Floodpage, J.; Lescanne, M.. |
| A few thousand (2612) seeps are releasing microbial methane bubbles from the seafloor at the Aquitaine Shelf edge (Bay of Biscay) at shallow water depths (140‐220 m). This methane contributes to the formation of meter‐scale subcircular carbonate structures, which are (sub‐)outcropping over 375 km2. Based on in situ flow rate measurements and acoustic data, and assuming steady and continuous fluxes over time, the methane entering the water column is estimated to 144 Mg/yr. Microbial methane circulation has been on‐going for at least a few thousand years. This discovery highlights the importance of microbial methane generation, disconnected from deep thermogenic sources and gas hydrates, at continental shelves. The shelf edge may be viewed as a focus area... |
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Palavras-chave: Microbial methane; Continental shelf; Fluid emissions; High‐resolution acoustics; Aquitaine Margin; Methane‐derived authigenic carbonates. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00618/72982/72057.pdf |
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| Fave, Sébastien; Crepin, Emeline; Magalhaes, José Ramos; Ogor, Andre; De Pontual, Helene; Mahe, Kelig. |
| Chaque année, près d’1 million de pièces calcifiées (dont 35 000 en France) sont analysées pour l’évaluation de l’état des ressources marines. De plus, beaucoup de thématiques de recherche nécessitent elles-aussi l’utilisation de ces pièces calcifiées. Ainsi, depuis plus de 20 ans, un partenariat entre la société VSG (Visualization Sciences Group anciennement Noesis) et l’institut de recherche IFREMER (Institut Français de Recherche pour l'Exploitation de la Mer) a permis de développer le logiciel d'analyse d'images dédié aux pièces calcifiées, nommé TNPC (Traitement Numérique des Pièces Calcifiées, www.tnpc.fr). Divers projets de recherche et collaborations en particulier avec l’ENIB (Ecole Nationale des Ingénieurs de Brest) ont été nécessaires pour... |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00148/25905/23922.pdf |
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