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| Registros recuperados: 21 | |
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| De Montaudouin, Xavier; Arzul, Isabelle; Caill-milly, Nathalie; Khayati, Alice; Labrousse, Jean-michel; Lafitte, Céline; Paillard, Christine; Soudant, Philippe; Goulletquer, Philippe. |
| In 1972, France underwent an oyster (Crassostrea angulata) crisis and urgently needed to diversify its aquaculture. Thus, Asari clam (Ruditapes philippinarum) was introduced at that time for aquaculture purpose, concomitantly with the introduction of Pacific oyster (Crassostrea gigas). All Asari clam adults and spat originated from the same area (Puget Sound, WA, USA). After a promising start and the implementation of a national Research & Development program, Asari clam culture rapidly faced a series of concomitant handicaps: firstly, in spite the fact that cultural practices were optimized and locking points addressed, leasing ground availability was limited during the 1980s’ due to certain reluctance from oyster farmers to share their leases and/or... |
| Tipo: Text |
Palavras-chave: Ruditapes philippinarum; France; Aquaculture; Professional fishing; Diseases; Environmental stressors. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00366/47767/47817.pdf |
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| De Montaudouin, Xavier; Sauriau, Pierre-guy. |
| The catalogue of soft-bottom macrofauna in the Marennes-Oleron Bay (French Atlantic coast) has been updated from a benthic survey conducted in April-May 1995. 262 stations were selected using a stratified random strategy based on sediment types and bathymetric levels. 231 soft-bottom macrofauna species were identified. A synopsis of all available literature since the first local marine study published in 1710 by Antoine Ferchauld de Reaumur indicated that 60 benthic species were reported in the Marennes-Oleron Bay for the first time. The sampling effort, i.e. more than 1 station per km(2) and size of the sieving square mesh (1 mm), can partially explain these results. Most of the new recorded species were crustaceans (28 species) and polychaete annelids... |
| Tipo: Text |
Palavras-chave: Pertuis Charentais; Marennes Oleron Bay; Checklist; Species richness; Macrozoobenthos. |
| Ano: 2000 |
URL: https://archimer.ifremer.fr/doc/2000/publication-885.pdf |
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| Dang, Cecile; De Montaudouin, Xavier; Binias, Cindy; Salvo, Flora; Caill-milly, Nathalie; Bald, Juan; Soudant, Philippe. |
| Perkinsosis is one of the most widespread diseases affecting commercially important species of molluscs globally. We examined the impact of Perkinsus spp. on shell growth at the individual scale in 2 clam species: Ruditapes decussatus from Mundaka Estuary (Spain) and R. philippinarum from Arcachon Bay (France). At Arcachon, 2 contrasting sites in terms of environment and Perkinsus olseni presence were chosen: Arguin (disease-free) and Ile aux Oiseaux (infected site). We monitored the dynamics of perkinsosis over the course of the experiment at Mundaka and Ile aux Oiseaux. Prevalences were high (>70%), and intensities were around 10(5) cells g(-1) wet gills at Ile aux Oiseaux, and 10(6) cells g(-1) at Mundaka. No significant differences in prevalence or... |
| Tipo: Text |
Palavras-chave: Clams; Perkinsus spp.; Perkinsus olseni; Ruditapes philippinarum; Ruditapes decussatus; Growth. |
| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00166/27733/25951.pdf |
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| Sauriau, Pierre-guy; Cajeri, Pauline; Cottet, Maud; Blanchet, Hugues; Bachelet, Guy; Lavesque, Nicolas; De Montaudouin, Xavier; Dubois, Sophie; Pothier, Anaelle; Auby, Isabelle; Trut, Gilles; Lamouroux, Mélina. |
| Tipo: Text |
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| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00212/32308/30729.pdf |
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| Binias, Cindy; Do, Van Tu; Jude-lemeilleur, Florence; Plus, Martin; Froidefond, Jean-marie; De Montaudouin, Xavier. |
| The aim of the present study was to identify environmental factors that could explain the distribution of different pathologies of commercially exploited intertidal bivalves in an Atlantic lagoon, Arcachon Bay. In particular, the role of the salinity gradient as a driver was explored. The Manila clam Ruditapes philippinarum experienced two severe pathologies, perkinsosis, which is due to a protozoan parasite, and brown muscle disease (BMD), the etiological agent of which remains unknown. Perkinsus olseni infection was very low in a small low-salinity area but, at the scale of the entire lagoon, was more influenced by organic matter content in the sediment and by emersion time. BMD prevalence was also 2.6 times higher in the higher organic content area but... |
| Tipo: Text |
Palavras-chave: Arcachon bay; Bivalves; Diseases; Distribution; Parasites. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00200/31083/31922.pdf |
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| Bertignac, Michel; Auby, Isabelle; Sauriau, Pierre-guy; De Montaudouin, Xavier; Foucard, Julie; Martin, Sophie. |
| As part of a larger project financed by the European Union programme "Community initiative PESCA" on the study of "small scale fisheries" in Aquitaine (France), an estimation of the stock of clams in the Bassin d'Arcachon has been conducted. A two-stage stratified random sampling survey has been designed. Samples have been collected using a Hamon bottom sampler in 237 locations distributed over 24 km2. The clam Tapes philippinarum, which appeared in the basin following a series of aquaculture experiments in the mid eighties, is now the main species accounting for more than 90% of the abundance and the biomass, largely overcoming the European species Tapes decussata. The mean abundance and biomass (26 clams / m2 et l28g / m2) are above those estimated in... |
| Tipo: Text |
Palavras-chave: Palourde; Tapes philippinarum; Tapes decussata; Evaluation stock; Pêche; Pêche à pied; Echantillonnage; Bassin d'Arcachon; Clam; Tapes philippinarum; Tapes decussata; Stock assessment; Fishery; Sampling; Bassin d'Arcachon. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00105/21658/19240.pdf |
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| Sauriau, Pierre-guy; De Montaudouin, Xavier; Gomez, Stéphane; Joassard, Lucette; Breret, Martine. |
| Les points forts des résultats acquis sur le chantier Marennes-Oléron au cours du programme LITEAU Crépidule sont énumérés : 1- Introduite dans le bassin de Marennes-Oléron à la fin des années soixante, Crepidula fornicata y a depuis colonisé principalement les bordures de chenaux et fonds subtidaux répondant à ses exigences écologiques. Ce nouveau biotope représente moins de 13% des surfaces de la baie pour un stock vivant ne dépassant pas quelques milliers de tonnes frais. De plus, du fait des opérations de nettoyage organisées depuis 1980 en baie de Marennes-Oléron, une relative stabilité du stock de crépidule est à noter dans cette baie depuis 25 ans. Ce n’est en revanche pas le cas du site de Fouras, où les opérations de nettoyage ne sont pas... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00032/14293/11572.pdf |
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| De Montaudouin, Xavier; Sauriau, Pierre-guy; Nauleau, Peggy; Labarraque, Dorothée; Giraud, Karen; Tiozzo, Julien. |
| Le stock de crépidules dans le Bassin d’Arcachon est estimé à 155 t (poids frais). La faible expansion de cette espèce dans la lagune est sans doute liée à la rareté de son substrat de prédilection (vases subtidales) et à l’interdiction des engins de pêche traînants, agents dispersifs. Même si les crépidules subissent une légère compétition intraspécifique au niveau du recrutement, la production des populations est proportionnelle à la biomasse, même pour des valeurs de 256 g poids sec m-2, soit 8 kg poids frais m-2. Aucun seuil d’autolimitation n’a donc été détecté. Les crépidules présentes en milieu sableux ont tendance à envaser le milieu. La signature isotopique des huîtres et des crépidules suggère certaines sources trophiques communes aux deux... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00032/14289/11568.pdf |
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| Mahony, Kate E.; Lynch, Sharon A.; Egerton, Sian; Laffan, Rebecca E.; Correia, Simão; De Montaudouin, Xavier; Mesmer‐dudons, Nathalie; Freitas, Rosa; Culloty, Sarah C.. |
| Reproduction and parasites have significant impacts on marine animal populations globally. This study aimed to investigate the associative effects of host reproduction and a host–parasite interplay on a marine bivalve, along a geographic gradient of latitude. Cockles Cerastoderma edule were sampled from five European sites (54°N to 40°N), between April 2018 and October 2019. A histological survey provided data on trematode (metacercaria and sporocyst life stages), prevalence, and cockle stage of gametogenesis to assess the influence of a latitudinal gradient on both interplays. Sex ratios at the northernmost sites were skewed toward females, and spawning size was reduced at the lower latitudes. Trematode infection did not follow a latitudinal gradient.... |
| Tipo: Text |
Palavras-chave: Boom and bust; Cockles; Fisheries; Latitude; Parasite–host interactions; Reproduction; Shellfish; Spatial variation; Trematodes. |
| Ano: 2021 |
URL: https://archimer.ifremer.fr/doc/00691/80352/83454.pdf |
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| Bachelet, Pierrre; De Montaudouin, Xavier; Desclaux, C.; Mairesse, G.; Raigne, H.; Randriambao, K.; Garcia Meunier, Pascale; Martel, C.; Pascal, P. Y.; Sauriau, Pierre-guy; Simon-bouhet, Benoît; Robert, Stephane; Geairon, Philippe; Goulletquer, Philippe; Grangere, Karine; Guilpain, Patrice; Le Moine, Olivier; Rossi, Nadege; Seugnet, Jean-luc; Soletchnik, Patrick. |
| Shellfish areas usually receive a large number of introduced species. During the present project, we specially focused on 4 marine benthic molluscs introduced in shellfish areas along the Channel and Atlantic coasts of France: the gastropods Crepidula fornicata, Ocinebrellus inornatus and Cyclope neritea, and the bivalve Ruditapes philippinarum. Our study was conducted according to three main axes: (i) the characterization of introduction and expansion patterns of species within their newly colonized area. In the three invasive gastropods C. fornnicata, C. neritea and 0. inornatus, a high level of genetic diversity was detected in the French populations which indicated a complex process of introduction (with multiple population sources or secondary... |
| Tipo: Text |
Palavras-chave: Recommandations; Transfert; Ecosystèmes marins; Insularité; Expansion; Introduction espèces; Invasions biologiques; Mollusques. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/acte-3305.pdf |
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| Plus, Martin; Dalloyau, Sebastien; Trut, Gilles; Isabelle, Auby; De Montaudouin, Xavier; Emery, Eric; Claire, Noel; Christophe, Viala. |
| The spatial variability of seagrass meadows in Arcachon Bay, was studied between 1988 and 2008 using a combination of mapping techniques based on aerial photographs for intertidal dwarf-grass (Zostera noltti) beds and acoustic sonar for permanently submerged eelgrass (Zostera marina) populations. The results show a severe decline over the period for both species, as well as an acceleration of the decline since 2005 for Z. noltii. The total surface regression over the studied period is estimated to be 22.8 km(2) for Z. noltii and 2.7 km(2) for Z. marina, which represent declines of 33 and 74% respectively. Environmental data time series spanning the same period were investigated in order to seek the causes for such a decline. The calculated inter-annual... |
| Tipo: Text |
Palavras-chave: Seagrass; Temporal evolution; Aerial photography; Acoustic sonar; Zostera noltii; Zostera marina; Arcachon Bay. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00003/11376/7969.pdf |
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| Blanchet, Hugues; Gouillieux, Benoit; Alizier, Sandrine; Amouroux, Jean-michel; Bachelet, Guy; Barille, Anne-laure; Dauvin, Jean-claude; De Montaudouin, Xavier; Derolez, Valerie; Desroy, Nicolas; Grall, Jacques; Gremare, Antoine; Hacquebart, Pascal; Jourde, Jerome; Labrune, Celine; Lavesque, Nicolas; Meirland, Alain; Nebout, Thiebaut; Olivier, Frederic; Pelaprat, Corine; Ruellet, Thierry; Sauriau, Pierre-guy; Thorin, Sebastien. |
| Based on a parallel sampling conducted during autumn 2008, a comparative study of the intertidal benthic macrofauna among 10 estuarine systems located along the Channel and Atlantic coasts of France was performed in order to assess the level of fauna similarity among these sites and to identify possible environmental factors involved in the observed pattern at both large (among sites) and smaller (benthic assemblages) scales. More precisely this study focused on unraveling the observed pattern of intertidal benthic fauna composition and diversity observed at among-sites scale by exploring both biotic and abiotic factors acting at the among- and within-site scales. Results showed limited level of similarity at the among-site level in terms of intertidal... |
| Tipo: Text |
Palavras-chave: Estuaries; Macrozoobenthos; Diversity; Structuring Factors; WFD. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00179/29016/27444.pdf |
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| Gallon, Regis K.; Lavesque, Nicolas; Grall, Jacques; Labrune, Celine; Gremare, Antoine; Bachelet, Guy; Blanchet, Hugues; Bonifacio, Paulo; Bouchet, Vincent M. P.; Dauvin, Jean-claude; Desroy, Nicolas; Gentil, Franck; Guerin, Laurent; Houbin, Celine; Jourde, Jerome; Laurand, Sandrine; Le Duff, Michel; Le Garrec, Vincent; De Montaudouin, Xavier; Olivier, Frederic; Orvain, Francis; Sauriau, Pierre-guy; Thiebaut, Eric; Gauthier, Olivier. |
| This study aims to describe the patterns of soft bottom macrozoobenthic richness along French coasts. It is based on a collaborative database developed by the “Réseau des Stations et Observatoires Marins” (RESOMAR). We investigated patterns of species richness in sublittoral soft bottom habitats (EUNIS level 3) at two different spatial scales: 1) seaboards: English Channel, Bay of Biscay and Mediterranean Sea and 2) 0.5° latitudinal and longitudinal grid. Total observed richness, rarefaction curves and three incidence-based richness estimators (Chao2, ICE and Jacknife1) were used to compare soft bottom habitats species richness in each seaboard. Overall, the Mediterranean Sea has the highest richness and despite higher sampling effort, the English Channel... |
| Tipo: Text |
Palavras-chave: Zoobenthos; Species richness; Regional pattern; Latitudinal pattern; Soft-bottom; France. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00376/48769/49166.pdf |
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| Baudrimont, M.; Gonzalez, P.; Hegaret, H.; Khayati, Alice; Lassus, Patrick; Legeay, A.; De Montaudouin, Xavier; Raymond, N.; Soudant, P.; Tran, D.. |
| The originality of this project consists in the interdisciplinary approach gathering the impact of toxic phytoplankton blooms and metallic pollution on health (behaviour, stress, immunity, genetic) and disease development of the Manila clam, an economieally important species. The Manila clam Ruditapes philippinarum is the second exploited bivalve in the world. It was introduced in Arcachon bay during the 80's and is today exploited by professional fishermen (57 licences). A 50% decrease of the stock was observed during the last five years. Beyond fishing pressure, a PhD thesis identified several diseases as potential threats, like perkinsosis (=Dermo) and brown muscle disease (BMD). The project confirms the settlement of these pathologies with high... |
| Tipo: Text |
Palavras-chave: Palourde japonaise; Pathologie; Efflorescences toxiques; Interactions microbiennes; Écotoxicologie; Multistress; Manila clam; Pathology; Toxic blooms; Microbial interactions; Ecotoxicology; Multistress. |
| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00156/26745/24825.pdf |
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| Bacher, Cedric; Blanchard, Gerard; Bougrier, Serge; Cariou-le Gall, Valerie; Delmas, D.; Deslous Paoli, Jean-marc; Dinet, A.; Garet, Marie-josee; Geairon, Philippe; Jonquieres, Gerard; Laisne, A.; Maffei, E.; Montagna, P. A.; De Montaudouin, Xavier; Morin, S.; Richard, P.; Riera, Pascal; Sauriau, Pierre-guy; Vrignaud, N.. |
| Les cartographies annuelles des biomasses microphytobenthiques ont été réalisées pour le bassin de Marennes-Oléron. Parallèlement les cartographies des caractéristiques sédimentaires ont été établies simultanément aux cartes d'abondance et biomasse macrofauniques en portant un effort particulier sur les densités des compétiteurs des huîtres notamment les Crépidules. Simultanément les études des mécanismes contrôlant le réseau trophique sur la vasière de Brouage ont été poursuivies notamment les relations entre les flux de sels nutritifs et le microphytobenthos. L'importance de ce dernier compartiment dans la nutrition de l'huître a été clairement mis en évidence par l'utilisation des traçeurs isotopiques naturels. Enfin, les caractéristiques de filtration... |
| Tipo: Text |
Palavras-chave: Bassin de Marennes Oléron; Microphytobenthos; Physiologie; Crassostrea gigas; Crépidules; Modèle réseau trophique; Cartographie; Charente-Maritime. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00102/21294/18911.pdf |
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| Auby, Isabelle; Labourg, Pierre Jean; De Montaudouin, Xavier. |
| Le Schéma de Mise en Valeur de la Mer appliqué au Bassin d'Arcachon doit préciser, entre autres, les mesures de protection du milieu marin. Certaines ont déjà été prises lors de la révision récente du Schéma directeur en application des articles L 146-6 et R 146-1 du Code de l'Urbanisme, d'autres pourraient l'être pour compléter ces dernières. Un Schéma peut aussi prescrire des sujétions particulières : "... si elles sont nécessaires à la préservation du milieu marin et littoral et particulièrement au maintien des équilibres biologiques". La commission Eau et Milieu naturel a pris en compte ces différents aspects, notamment en terme de ressources biologiques et de protection éventuelle d'espèces et d'habitats. Nous avons donc proposé d'effectuer des... |
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| Ano: 1995 |
URL: http://archimer.ifremer.fr/doc/00152/26286/24369.pdf |
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| Registros recuperados: 21 | |
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