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Registros recuperados: 6
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Evolution à moyen terme d'un écosystème estuarien : le bassin de Marennes-Oléron ArchiMer
Soletchnik, Patrick.
The Marennes Oléron Bay, the main French oyster culture basin, is an estuarine zone which is subject to anthropic pressure. Meteorological parameters such as temperature, insolation, pluviometry determine, for the most part, the water temperature and salinity conditions for each season and control the nutrient fluxes, as well as the primary and secondary production of the basin. The average air temperature (Météo -France) stays around 12.5°C between 1950 and 1980, then rises more than 1°C in 20 years. In those 50 years, average insolation drops from 198 hours to 176 hours, corresponding to an 11% decrease. Seasonal distribution of water inputs shows that spring pluviometry increased by 30% between the 1950's and the last two decades. Precipitations also...
Tipo: Text Palavras-chave: Ressource trophique; Crassostrea gigas; Production primaire; Bassin Marennes Oléron; Ecosystème.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/acte-3381.pdf
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Gestion des écosystèmes conchylicoles : le cas des pertuis charentais ArchiMer
Goulletquer, Philippe; Heral, Maurice.
The nutritional capacity of an oyster culture basin relies on the nutrient input, as well as the hydrodynamic which conditions the time of residence of the masses of water enabling the development of the phytoplankton. This limited amount of food has to be shared between the different natural populations and the cultivated ones (oysters or mussels). The total amount of these biomasses has to be controlled so as not to exceed the capacity limit.
Tipo: Text Palavras-chave: Biomasse; Capacité nutritionnelle; Conchyliculture; Charente Martime; Pertuis charentais; Ecosystème.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/acte-3515.pdf
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Les récifs artificiels - Etat des connaissances et recommandations ArchiMer
Gerard, Andre; Thouard, Emmanuel; Veron, Gerard; Denis, Jacques; Thebaud, Olivier.
The "Artificial reefs" and "Repopulating" issues have been tackled by the Ifremer for a number of years without reaching a clear cut point of view, mainly for lack of socio-economic elements necessary to a rigorous analysis of these devices and practices. During a mission in Japan in January 2006, some Japanese experts, have presented to the head of the Ifremer a few examples of realisations related to these fields and conducted in their country. The head of the Ifremer realised the scope of such devices in Japan and expressed the wish to see an in-depth study carried out over there. In this purpose, the International Relationship Department organised and co-financed the three-month stay in Japan of a student from the University of Montpellier III, Sylvain...
Tipo: Text Palavras-chave: France; Etranger; Recommandations; Réglementation; Cadre juridique; Protection; Aménagement; Intérêt; Ecosystème; Récifs artificiels.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/rapport-6533.pdf
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Poissons et invertébrés au large des côtes de France : Indicateurs issus des pêches scientifiques. Bilan 2002 ArchiMer
Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Le Pape, Olivier; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves.
The scientist community, the fishing organisations and all involved parties show a growing interest in an integrated project management of the sea space exploited by fishing communities. A key to reach such a target is to make available reliable and precise scientist data on the different components of the fishing systems. For about twenty years, and in its mission to support the development of an integrated management for a sustainable use of marine resources, Ifremer has been organising monitoring campaigns of fishery resources along the shores of France. These campaigns aim at providing abundance indicator on species of interest. They consequently provide an essential knowledge base to characterize and trace the status of exploited fish and...
Tipo: Text Palavras-chave: Ecosystem; Indicating; Oceanographical campaign; Scientific research; Fishing halieutic; Fishing; English Channel; Bay of Biscay; France; Invertebrate; Pisces; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France; Invertebrate; Pisces.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-1091.pdf
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Poissons et invertébrés au large des côtes de France. Indicateurs issus des pêches scientifiques. Bilan 2004 ArchiMer
Bertrand, Jacques; Cochard, Marie-laure; Coppin, Franck; Leaute, Jean-pierre; Lobry, Jeremy; Mahe, Jean-claude; Morin, Jocelyne; Poulard, Jean-charles; Rochet, Marie-joelle; Schlaich, Ivan; Souplet, Arnauld; Trenkel, Verena; Verin, Yves; SIH-C.
The integration of fishing management into the ecosystemic approach has been recommended for many years by international consultative bodies; it is also written into international conventions and agreements. The implementation of the ecosystemic approach involves the development of programmes for monitoring exploited ecosystems in order to measure the effects of management steps. Plotting the results of these observations for operational reasons requires formalizing summary performance indicators. IFREMER has carried out halieutic observation campaigns for some twenty years along the coasts of France from oceanographic ships and chartered ships. The objective of these campaigns is to produce abundance indices of species that are of halieutic interest....
Tipo: Text Palavras-chave: Ecosystem; Indicating; Scientific survey; Scientific research; Fishing; English Channel; Bay of Biscay; France; Shellfish; Fish; Invertébrés; Poissons; Ecosystème; Indicateur; Campagne océanographique; Recherche scientifique; Pêche halieutique; Pêche; Mer du nord; Golfe de gascogne; Manche; France.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/rapport-2327.pdf
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Suivi des espèces envahissantes marines à Saint Pierre et Miquelon. Année 2014 ArchiMer
Sellier, Marion; Poitevin, Pierre; Goraguer, Herle; Faure, Jean-marie; Goulletquer, Philippe.
Initiated in 2013, the present work carried out in 2014 extends the monitoring network focusing on marine invasive exotic species in Saint-Pierre and Miquelon archipelago. In a global context of coastal ecosystems’ changes, accentuated by direct or indirect effects of human activities, it became essential to implement a monitoring survey and to track the expansion of marine invasive species along Saint-Pierre and Miquelon shoreline. Fukui traps and tunicates collectors deployed on different stations as well as the timely completion of observational dives, have provided the following conclusions: several invasive species were again reported within the local marine ecosystem. Those species, i.e., Carcinus maenas, Caprella mutica, Ciona intestinalis,...
Tipo: Text Palavras-chave: Marine Invasive species; Saint-Pierre and Miquelon; Aquaculture; Ecosystem; Espèces marines invasives; Saint-Pierre et Miquelon; Aquaculure; Ecosystème.
Ano: 2016 URL: http://archimer.ifremer.fr/doc/00312/42303/41635.pdf
Registros recuperados: 6
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