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| Registros recuperados: 81 | |
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| Auby, Isabelle; D'Amico, Florence; Meteigner, Claire; Ganthy, Florian; Maurer, Daniele; Gouriou, Laure; Rigouin, Loic; Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Guesdon, Stephane; Derrien, Annick; Chabirand, Jean-michel; Charpentier, Gabriel; Genauzeau, Sylvie; Schmitt, Anne; Geairon, Philippe; Grizon, James; Seugnet, Jean-luc; Thomas, Gerard; Bechemin, Christian; Soudant, Dominique; Lamoureux, Alice; Beaugrand, Philippe; Noureau, Bruno; Michel, Valérie; Dupin, Michel; Bariou, Jean; Landier, Pascal; Miguel, Véronique. |
| Ce rapport rend compte des résultats acquis entre 2009 et 2014 sur les paramètres hydrologiques et le phytoplancton, dans le cadre des réseaux REPHY et ARCHYD (pour les points du Bassin d’Arcachon), et celui du contrôle de surveillance des masses d'eau du bassin Adour-Garonne qui ne faisaient pas l’objet de suivi avant la mise en oeuvre de la DCE. Ce document contient des résultats concernant les éléments de qualité physicochimique (oxygène dissous pour les deux types de masses d’eau, azote inorganique dissous pour les masses d’eau côtières et les masses d’eau de transition peu turbides, température et transparence pour les masses d’eau côtières exclusivement) selon des méthodes présentées dans trois documents (Daniel, 2009 a et b ; Daniel et Soudant,... |
| Tipo: Text |
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| Ano: 2015 |
URL: http://archimer.ifremer.fr/doc/00280/39141/37696.pdf |
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| Pouvreau, Stephane; Petton, Sebastien; Queau, Isabelle; Bellec, Gwenael; Talarmain, Eric; Le Souchu, Pierrick; Alunno-bruscia, Marianne; Auby, Isabelle; Maurer, Daniele; D'Amico, Florence; Passoni, Sarah; Barbier, Claire; Tournaire, Marie-pierre; Rigouin, Loic; Rumebe, Myriam; Fleury, Elodie; Langlade, Aime; Bouget, Jean-francois; Collin, Karine; Fortune, Mireille; Palvadeau, Hubert; Bedier, Edouard; Robert, Stephane; Pepin, Jean-francois; Grizon, James; Seugnet, Jean-luc; Chabirand, Jean-michel; Le Moine, Olivier; Guesdon, Stephane; Lagarde, Franck; Mortreux, Serge; Le Gall, Patrik; Messiaen, Gregory; Roque D'Orbcastel, Emmanuelle; Quemener, Loic; Repecaud, Michel; Bucas, Karenn; Barbot, Stephane; Guillemot, Anne; Nonnotte, Lidwine; Duros, Wenceslas; Bonnat, Armel; Tarot, Stephane; Mille, Dominique; Geay, Amelie; Bouquet, Anne-lise. |
| La conchyliculture, et principalement l’élevage de l’huître creuse, Crassostrea gigas, constitue la principale activité aquacole française. Cette activité repose, en grande partie, sur le recrutement naturel de l’espèce qui assure 70% des besoins en jeunes huîtres (naissain) : cette activité de collecte s’appelle le captage. Les deux principaux centres de captage en France sont les bassins d’Arcachon et de Marennes-Oléron. Or, depuis une dizaine d'années, sur le bassin d'Arcachon, le captage devient très variable: à des années de captage nul (par exemple les années 2002, 2005, 2007) ou faible (2009, 2010, 2011) succèdent des années excellentes voire pléthoriques (les années 2003, 2006, 2008, 2012, 2013). A Marennes-Oléron, cette variabilité existe, mais... |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00200/31091/29499.pdf |
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| De Wit, Rutger; Leibreich, J; Vernier, F; Delmas, F; Beuffe, H; Maison, P; Chossat, J; Laplace Treyture, C; Laplana, R; Clave, V; Torre, M; Auby, Isabelle; Trut, Gilles; Maurer, Daniele; Capdeville, P. |
| Nitrogen loading to the Bassin d'Arcachon coastal lagoon (SW France) was evaluated by studying land-use and nitrogen output in its 3001 km(2) catchment. At present, the catchment is dominated by forestry (79%), while intensive agriculture occupies 9% of the surface. The N-output of two hydrological subunits, i.e. the Tagon subunit dominated by pine forestry and the Arriou 11 subunit comprising both forestry and intensive agriculture, were monitored for a seven year period (1996-2002). From these observations it was calculated that forestry contributes on average 1.6 kg total N ha(-1) yr(-1), which is dominated by organic nitrogen (DON+PON are 70% of N). On an areal basis, intensive agriculture contributes 26 times more than forestry, i.e. 41.6 kg total N... |
| Tipo: Text |
Palavras-chave: Macroalgae; Seagrasses; Nitrogen loading; Catchment. |
| Ano: 2005 |
URL: http://archimer.ifremer.fr/doc/2005/publication-757.pdf |
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| Bouchet, Jean-marie; Deltreil, Jean-pierre; Manaud, Francois; Maurer, Daniele; Trut, Gilles. |
| L'étude rassemble les connaissances existantes pour éclairer les grandes tendances de l'évolution naturelle et socio-économique qui interviennent dans et autour du Bassin d'Arcachon. La présente synthèse a été établie à partir du contenu de cinq tomes thématiques. Le sens et la vitesse de l'évolution morphologique ont été précisés, permettant des projections raisonnables à moyen terme : la communication avec la mer n'est pas menacée, la navigabilité des passes va aller s'améliorant dans les trente prochaines années ; pendant le même temps, des changements importants de la côte et des bancs vont nécessiter des adaptations des sites d'exploitation des ressources (ostréiculture, loisirs, tourisme) et de l'émissaire de La Salie, tandis qu'à l'intérieur du... |
| Tipo: Text |
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| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00083/19399/16992.pdf |
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| Maurer, Daniele; Borel, Michel. |
| Two-year-old oysters have a physiology which is reproduction-oriented, their maturation occurring synchronously among oysters from the same batch. The importance of the spring accumulation of glycogenated stocks varies through the years and correlates with the growth stage. Glucidic components are quickly used during the month preceding egg-laying and are transformed into lipid stocks for the oocytes. One-year-old oysters develop at different rates, some of them not showing any sign of maturation and the percentage of laying individuals varies through the years. Glycogenated stocks accumulate in a similar way in both age-classes and their more precocious and more intense use by young molluscs is not necessarily linked with their gametogenesis and growth,... |
| Tipo: Text |
Palavras-chave: Bay of Arcachon; Maturation; Biochemistry; Crassostrea gigas; Bassin d'Arcachon; Maturation; Biochimie; Crassostrea gigas. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-6182.PDF |
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| Gasmi, Sonia; Bernard, Ismael; Pouvreau, Stephane; Maurer, Daniele; Schaal, Gauthier; Ganthy, Florian; Cominassi, Louise; Allain, Gwenhael; Sautour, Benoit; David, Valerie. |
| In macrotidal coastal ecosystems, spatial heterogeneity of the water column properties is induced by both oceanic and continental influences. Hydrodynamic processes generate a land-sea gradient of environmental conditions, affecting the biological performances of sedentary organisms. The aim of the present study is to establish an extensive spatial assessment in the reproductive investment of the wild Pacific oyster Crassostrea gigas in Arcachon Bay. This is done by looking for a relationship between the Lawrence and Scott condition index (LSCI) and two tidal processes: the immersion level (IL) and the local oceanic flushing time (LoFt). The LSCI of C. gigas was assessed, just before gamete release, at 68 sampling stations in Arcachon Bay. Oyster... |
| Tipo: Text |
Palavras-chave: Reproductive investment; Crassostrea gigas; Macrotidal lagoon; Immersion level; Oceanic flushing; Environmental variability. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00357/46803/46670.pdf |
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| Auby, Isabelle; Maurer, Daniele; Passoni, Sarah; Heroin, Debora; Rigouin, Loic; Meteigner, Claire; Perriere-rumebe, Myriam; Tournaire, Marie-pierre; Simonnet, Bastien; Navarro, Romuald. |
| Each summer, the IFREMER laboratory of Arcachon monitors, in the scope of an agreement with the Regional Conchological Comity of Arcachon, the reproduction of Pacific oysters in the Arcachon Bay. This monitoring aims to provide oyster farmers with information necessary to the spat collecting: - dates and amount of spawn, - larval development speed, - presence of the most evolved stages in the habitat (close to fixation). Reproduction is monitored from June to September, with plankton being sampled four times a week on different representative sites. Oyster larvae at different stages are counted. At the end of the reproduction period (September-October), larval recruitment on collectors is estimated via the counting of the spats collected, at various... |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00243/35451/33980.pdf |
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| His, Edouard; Maurer, Daniele; Robert, Rene. |
| The spat production in the Bay of Arcachon has been recently disturbed. Bioassays using algae used as food for oyster larvae have shown that the organotin paints affect or inhibit growth of Isochrysis galbana and Chaetoceros calcitrans . Fresh waters coming into the bay and shore sediment did not affect the growth of these algae. Bioassays proposed by Woelke (1967) using embryos and larvae of Crassostrea gigas have shown that the quality of the sea water from Arcachon harbour has been improved a few months after the use of organotin paints has been prohibited. Likewise fresh waters are free from any micropollutants that could drastically disturb the reproduction of C. gigas in the bay. |
| Tipo: Text |
Palavras-chave: Marine mollusks; Pollution effects; Recruitment; Population number; Oyster culture. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/publication-1788.pdf |
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| Tunin Ley, Alina; Maurer, Daniele. |
| The FlowCAM / PhytoImage project has for objective, forward, the operational implementation of analyses of the phytoplanktonic composition of samples of sea water using automated, or semi-automated analysis, by using FlowCAM coupled with a specific version of the software PhytoImage, developed by the University of Mons in Belgium. This document reports first phases of the realization of the project, made within the framework of a post-doctorate, in constant interaction with the team of the UMONS. Pictures stemming from the digitalization of samples, mainly taken in the Bay of Arcachon from January, 2010 till March, 2011, allowed to constitute picture libraries of the particles of the Bay, mainly phytoplanktonic but also zooplanktonic and sluggish... |
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| Ano: 2011 |
URL: http://archimer.ifremer.fr/doc/00050/16101/13580.pdf |
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| His, Edouard; Maurer, Daniele; Robert, Rene. |
| L’acétate de tributyle-étain, composé actif de certaines peintures antisalissures, représente un danger certain pour les zones conchylicoles de captage (E. HIS et R. ROBERT, 1980 et R. ROBERT et E. HIS, 1981). Les méthodes chimiques actuelles ne sont pas assez sensibles pour permettre le dosage de ce produit dans l'eau de mer, au seuil de toxicité pour les larves d'huitres. Une échelle d'action pour douze concentrations comprises entre 100 ug/l. et 0,02 ug/ l., sur les véligères de Crassostrea gigas est proposée. Elle permet d’évaluer le degré de contamination de l'eau de mer d'un part de plaisance et son évolution. |
| Tipo: Text |
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| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/00090/20162/17815.pdf |
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| Gerard, Andre; Naciri, Yamama; Peignon, Jean-marie; Ledu, Christophe; Phelipot, Pascal; Baud, Jean-pierre; Nourry, Max; Haure, Joel; Coatanea, Denis; Oheix, Jocelyne; Vercelli, Catherine; Chabirand, Jean-michel; Borel, Michel; Maurer, Daniele; Heurtebise, Serge; Garnier, Jacqueline; Martin, Anne-genevieve; Tige, Gilbert; Mazurie, Joseph; Langlade, Aime. |
| Cette réunion des membres du Réseau Génétique Mollusques avait pour objet de faire un bilan provisoire des actions en cours et surtout de mettre en place les protocoles et les calendriers du début de l'année 1994. La première demi-journée a été réservée à un exposé de Yamama NACIRI sur les bases de la Génétique Quantitative et ses applications dans le cadre des programmes de sélection des mollusques.La deuxième demi-journée a été consacrée au bilan des actions de 1993. Les représentants de chaque site, intervenant dans une opération du réseau en 1993, ont fait une présentation orale de leurs résultats. Un résumé de chaque intervention vous est fourni dans ce document. Il est important de souligner que tous ces bilans sont provisoires, en premier lieu parce... |
| Tipo: Text |
Palavras-chave: Génétique; Sélection génétique; Huître plate; Ostrea edulis; Croissance; Génétique population. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00049/15982/13425.pdf |
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| Auby, Isabelle; D'Amico, Florence; Meteigner, Claire; Ganthy, Florian; Maurer, Daniele; Gouriou, Laure; Rigouin, Loic; Rumebe, Myriam; Tournaire, Marie-pierre; Trut, Gilles; Oger-jeanneret, Helene; Guesdon, Stephane; Derrien, Annick; Chabirand, Jean-michel; Genauzeau, Sylvie; Schmitt, Anne; Geairon, Philippe; Grizon, James; Seugnet, Jean-luc; Thomas, Gerard; Bechemin, Christian; Soudant, Dominique; Lamoureux, Alice; Beaugrand, Philippe; Noureau, Bruno; Michel, Valérie; Dupin, Michel; Bariou, Jean; Landier, Pascal; Miguel, Véronique. |
| Tipo: Text |
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| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00355/46583/46391.pdf |
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| Thebault, Anne; Martin, Anne-genevieve; Pichot, Yves; Chollet, Bruno; Robert, Maeva; Le Coguic, Yvette; Tige, Gilbert; Hirata, Toshio; Mazurie, Joseph; Le Saux, Jean-claude; Masson, Nadine; Auby, Isabelle; Maurer, Daniele; Le Roux, Frédérique; Cochennec, Nathalie; Renault, Tristan; Berthe, Franck; Grizel, Henri. |
| The main objectives of the Mollusc Pathology Network (REPAMO) are to prevent introductions or outbreaks of infectious agents, prevent spread within a farm and especially from one farm to another, to study ways of decreasing the impact of infectious agent and to monitor the development of these pathogens in order to guarantee the health status of oysters exchanged with our commercial partners. On the whole, REPAMO's activities have not changed and include: - monitoring the development of diseases that have to be reported to authorities and carrying out analyses to classify zones: bonamiosis and marteiliosis; - baseline monitoring of farmed and wild populations of bivalve molluscs; - studying cases of abnormal mortality events; - controlling mollusc... |
| Tipo: Text |
Palavras-chave: Mollusques; Réseau surveillance; Pathologie; REPAMO. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/2001/acte-3265.pdf |
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| Gonzales, Arriagada; Bernard, Ismael; Maurer, Daniele; Auby, Isabelle; Gasmi, Sonia; Pouvreau, Stephane; David, Valerie. |
| Arcachon Bay is one of the most important spat-supplying area for the French oyster production. During the last 16 years, the local economic activity of spat production has been threatened recurrently by a high interannual variability of seed harvesting. This threatened spat production was attributed to reproductive problems highlighted by both a delay in oyster spawning and a decrease of small larvae abundances since 1995. Recent works showed that these two reproduction indices seem closely related to climate change that might controls the phytoplankton communities of the Bay. Food availability in term of quantity and quality appears thus as a serious track to understand the reproductive problems of oyster in the Arcachon Bay. The aim of this work was... |
| Tipo: Text |
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| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00257/36828/35454.pdf |
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| Auby, Isabelle; Devault, Damien; Trut, Gilles; Cantin, Christian; Maurer, Daniele. |
| For fifteen years, northern Medoc hosts sites of Penaeus japonicus. The six farms, with a total area of 180 ha (95 ha water) are supplied with water by canals connected to the Gironde estuary. Their normal total production is 11 tons per year, for an annual national output of 25 tonnes. In 2001, the survival rate of postlarvae were particularly low (22% average) compared to previous years, causing a decrease in production on all farms. A total of 4 tons of penaeid were harvested by farmers, about one third of normal production. To explain this sudden drop in production, farmers have questioned the possibility of pollution of the water feeding their marshes, suspecting especially the recent use of certain insecticides related to forestry and viticulture. A... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00075/18671/16217.pdf |
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| Maurer, Daniele; Borel, Michel; Dreno, Jean-paul. |
| L'élaboration d'un modèle de gestion d'un bassin conchylicole nécessite, en particulier, la connaissance de l’évolution des stocks d'huîtres d'une année à l'autre afin d'en apprécier l'influence éventuelle sur le rendement. Le présent travail décrit la méthodologie utilisée et les résultats obtenus au cours de la première estimation du stock d'huîtres Crassostrea gigas en élevage dans le bassin d'Arcachon en 1985. Cette estimation nécessite l'utilisation simultanée de photographies aériennes (évaluation de la surface réellement exploitée ) et de sondages-terrain (évaluation de la biomasse par unité de surface). Ces derniers ont également permis de valider les résultats obtenus par photographie. En 1985, le taux d'exploitation variait, selon la zone... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Biomasse; Bassin d'Arcachon; Crassostrea gigas; Biomass; Bay of Arcachon. |
| Ano: 1987 |
URL: http://archimer.ifremer.fr/doc/00102/21342/18965.pdf |
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| Registros recuperados: 81 | |
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