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| Registros recuperados: 53 | |
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| Couty, Angélique. |
| The Japan oyster: Crassostrea gigas have been imported on the french coasts in the seventies and from this time it adapted to this environment. Since, it became the main oyster producted in France. But ,since twenty years C. gigas presents an anormaly and important mortality eah year in the period of summer. The syndrome known as summer mortality, appears particulary in mid-june. This mortality can affected 50% of the culture. Many studies have brought elements in the comprehension of the condition of apparition of this mortalilities. Temperature seems to play an important rule with reproductive maturation. But also, the deep ofwater could be associated to this mass mortality. The study began in march 2003 and characterize more precisely the summer... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Mortalité estivale; Croissance; Maturation; Environnement; Crassostrea gigas; Summer mortality; Growth; Maturation; Environment. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00306/41767/40980.pdf |
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| Gourmelon, Michele. |
| La contamination de l’environnement par des bactéries ou des virus d’origine fécale par le biais des rejets résultant des activités urbaines ou agricoles constitue un risque important pour la santé humaine et une préoccupation pour la pérennité de certains usages en zone littorale. La bactérie Escherichia coli (E. coli) a été retenue comme indicateur de contamination fécale pour évaluer la qualité sanitaire des zones conchylicoles et des zones de baignade et pour établir leur classification. L’étude des bactéries entériques et des marqueurs de l’origine des contaminations fécales dans l'environnement littoral constitue l’essentiel de mes activités de recherche à l’Ifremer. C’est ce travail qui sera présenté lors de cette soutenance. J'’ai tout d’abord... |
| Tipo: Text |
Palavras-chave: Contamination microbiologique; Littoral; Bactéries entériques; Environnement; Contaminatin fécale. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00256/36764/35369.pdf |
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| Perez-galvez, Raul. |
| In the framework of the future application of a zero-discard policy in EU fisheries, this thesis aims to develop and implement an efficient and integral waste management both on board the fishing vessels and in land (fish auctions and fish processing industry). To this end, it proposes a compaction operation able to reduce the volume and the water activity of the fish wastes, thus favouring their handling and reducing the economical costs associated to their transport and storage. To asses the viability of a waste compaction operation, the main operation factors governing the process were identified, and their influence upon the performance of the compacting operation was investigated by a statistical approach. Sardine was chosen as fish species since it... |
| Tipo: Text |
Palavras-chave: Environment; Compression; Aquaculture; Fishing; By product; Environnement; Compression; Aquaculture; Pêche; Co produit. |
| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/these-7390.pdf |
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| Robert, Stephane; Bedier, Edouard. |
| Le réseau national d’observation de la moule bleue MYTILOBS a été mis en place en 2012 sur le littoral atlantique en réponse aux interrogations sur les mauvais résultats rencontrés sur la croissance et la qualité des moules sur bouchot, dans certaines zones de production, les trois années précédentes, notamment en 2011. Sa mise à l’eau, prévue en décembre 2011, a été repoussée au mois de mars 2012. Des cinq régions productrices de moules sur bouchot, quatre ont été retenues comme sites test. Chaque région est identifiée par une zone géographique et un lieu dit : la Bretagne Nord en baie du Mont Saint Michel par Le Vivier-sur-mer, La Bretagne Sud en baie de Vilaine par Pont Mahé, Les Pays de Loire dans le Pertuis Breton par l’Aiguillon, le Poitou-Charentes... |
| Tipo: Text |
Palavras-chave: Mytilus edulis; Moules; Bouchot; Mortalité; Croissance; Température; Phytoplancton; Réseau; Biométrie; Environnement. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00166/27720/25914.pdf |
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| Feuillette, Sarah; Levrel, Harold; Blanquart, Stéphanie; Gorin, Olivier; Monaco, Guillaume; Penisson, Bruno; Robichon, Stéphane. |
| In the context of the Water Framework Directive, the French Water Agencies were asked to justify exemptions, for disproportionate cost reasons, to the “good water” status in a series of river basins in 2015. The ministry of the Environment and the economists of the Water Agencies agreed on the fact that this justification would be based on cost-benefit analyses. A great number of cost-benefit analyses were carried out on water bodies or groups of water bodies. This article reports on this experience conducted by the French Water Agencies. It highlights the fact that the large majority of restoration projects generated higher costs than benefits. It suggests that the implementation of the Water Framework Directive could be considerably limited by the use of... |
| Tipo: Text |
Palavras-chave: Environnement; Dispositifs institutionnels; Eau; Évaluation économique; Coûts disproportionnés; Environment; Institutional systems; Water; Economic valuation; Disproportionate costs. |
| Ano: 2015 |
URL: https://archimer.ifremer.fr/doc/00480/59158/61787.pdf |
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| Le tixerant, Matthieu; Bonnin, Marie; Gourmelon, Françoise; Ragueneau, Olivier; Rouan, Mathias; Ly, Ibrahima; Ould zein, Ahmed; Ndiaye, Fatou; Diedhiou, Mohamed; Ndao, Souleye; Ndiaye, Mamadou Bassirou. |
| In the marine environment, positive law generates multiple zones and regulatory limits that overlap in space, justifying a cartographic representation as a relevant approach to promote understanding (synthetic vision), analysis (highlighting legal anomalies, inconsistencies and redundancies), dissemination and communication to different audiences (awareness-raising). The article presents a methodology leading to the mapping of marine and coastal environmental law in West Africa, using a geographic information base to produce static or interactive cartographic representations via a Geographic Data Infrastructure (GDI). It shows the contribution of this type of mapping to a transversal approach in a multi-activity, multi-sectoral and multi-scale context. A... |
| Tipo: Text |
Palavras-chave: Afrique de l’ouest; Mer; Littoral; Droit de la mer; Environnement; SIG; Cartographie; West Africa; Sea; Coastal zone; Law of the sea; Environment; GIS; Cartography. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00656/76813/81628.pdf |
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| Kantin, Roger. |
| Le Laboratoire côtier de La Tremblade est implanté géographiquement dans le premier bassin ostréicole d'Europe (30 000 tonnes produites et 60 000 tonnes commercialisées chaque année). L'ostréiculture y est donc une activité économique importante en terme d'emplois, qui doit cohabiter avec le tourisme et l'agriculture générant parfois des conflits d'usages (gestion de l'eau, qualité de l'eau). Les avis donnés à l'Administration ou aux collectivités locales s'appuient sur les résultats de la surveillance ou ceux émanant des études spécifiques comme les études microbiologiques locales. Les activités, les responsabilités de chacun dans le cadre de ce mandat, figurent dans le "Manuel Qualité" du Laboratoire. |
| Tipo: Text |
Palavras-chave: Rapport activité; Réseaux surveillance; Environnement; Microbiologique; Bactériologie; Marennes Oléron. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00074/18553/16104.pdf |
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| Kantin, Roger. |
| Le Laboratoire côtier de La Tremblade est implanté géographiquement dans le premier bassin ostréicole d'Europe (30 000 tonnes produites et 60 000 tonnes commercialisées chaque année, 10.000 emplois). L'ostréiculture est une activité économique très importante en terme d'emplois, qui doit cohabiter sur un même littoral avec le tourisme et l'agriculture générant parfois des conflits d'usages (gestion qualitative et quantitative de l'eau, pollutions). Les avis donnés à l'Administration ou aux collectivités locales s'appuient sur les résultats de la surveillance ou ceux émanant des études spécifiques comme les études microbiologiques locales. Les activités, les responsabilités de chacun dans le cadre de ce mandat, figurent dans le "Manuel Qualité" du... |
| Tipo: Text |
Palavras-chave: Rapport activité; Environnement; Réseau surveillance; Microbiologie; Bactériologie; Marennes Oléron. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00074/18556/16107.pdf |
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| Gawel, Mj. |
| Guam consists of a single main island surrounded by shallow fringing coral reefs. The marine species and ecology of Guam's coral reefs have been studied extensively, especially through programs of the University of Guam's Marine Laboratory. In addition to overfishing and destructive fishing practices, the marine benthic communities of Guam have been damaged by major storm waves; loss of corals to crown of thorns starfish predation; damage by recreational swimmers, divers and watercraft operators; grounding of ships and pollutant discharges of sewage and of stormwater. But the most serious damage is due to accelerated siltation, sedimentation and turbidity due to erosion related to land use practices. Steps are being taken to protect Guam's coral reefs and... |
| Tipo: Text |
Palavras-chave: Récif; Protection; Benthique; Environnement; Guam; Reef; Protection; Benthic; Environment; Guam. |
| Ano: 1999 |
URL: http://archimer.ifremer.fr/doc/00325/43595/44036.pdf |
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| Le Fevre-lehoerff, G; Woehrling, Daniel. |
| Studies have been conducted at Gravelines (France) to estimate the effects of construction and then, the operation of a nuclear power plant. These studies take into account diverse sources of stress: the thermal impact ( Delta T = +11 degree C), the chlorination procedures (0.8 ppm) and the mechanical effects (flow rate 240 m super(3)/s). Distinction has been made between impacts occurring within the cooling system and impacts within the thermal plume. The ecological monitoring has been particularly concerned with water, sediment and organic matter, benthic and pelagic organisms. Results of these field studies include a baseline information in terms of physical, chemical and biological measurements and describe a "reference state" with chronological series. |
| Tipo: Text |
Palavras-chave: Centrale nucléaire; Environnement; Impact; Littoral sud de la Mer du Nord. |
| Ano: 1991 |
URL: http://archimer.ifremer.fr/doc/00267/37862/35943.pdf |
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| Kempf, Marc; Jacq, E; Le Guellec, C; Merceron, Michel; Monfort, Patrick; Nezan, Elisabeth; Ryckaert, Mireille. |
| This document presents a year-long (1994) environmental study conducted on a site of intensive farming of salmonids (mainly fario trout) in Camaret Bay. A set of parameters were considered for the body of water and the sea bed (flow patterns, hydrology, sedimentology, biology, chemistry) and complemented by video observations. The study concluded that there was a measurable effect from the farm in its current configuration, but that the impact was of a very limited intensity and scope that did not affect the environment in a substantial way. It is recommended that production growth be accompanied by a minimum amount of environmental assessment. |
| Tipo: Text |
Palavras-chave: Bretagne; Truite fario; Salmonidés; Environnement; Pisciculture marine. |
| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/1995/rapport-2834.pdf |
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| Kalaydjian, Regis; Girard, Sophie. |
| The "French Maritime Economic Data" report is periodically published by Ifremer since 1997. It presents an economic assessment of the French maritime activities, their position in the national economy and in the world competition, as well as the significance of non market public services. Maritime activities in the industrial sector are assessed using a standard metrics to facilitate the periodical update of the report: turnover, gross value added, employment, number of enterprises, exports. These indicators are expressed at national level. The public sector is described by annual budgets, number of staff and personnel costs, broken down into the different public policy functions. Regional indicators are provided on activities whenever relevant and... |
| Tipo: Text |
Palavras-chave: Economie; Concurrence; Croissance; Emploi; Environnement; Europe; France; Industrie; Marin; Maritime; Valeur ajoutée; Secteur public; Services.; Economy; Competition; Employment; Environment; Europe; France; Growth; Industry; Marine; Maritime; Public sector; Value added; Services.. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00388/49962/50614.pdf |
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| Registros recuperados: 53 | |
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