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| Registros recuperados: 143 | |
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| Robert, Stephane; Le Moine, Olivier. |
| La comparaison des rendements de production des moules commercialisables entre les relevés professionnels du mois de juillet et les prélèvements réalisés en présence de la commission montre qu'il y a effectivement eu un évènement particulier qui a entraîné la disparition d'une partie de la ressource. Cette disparition a eu lieu après le 14 août. Elle a été estimée pour' le littoral charentais: à 66% pour la zone Marsilly Esnandes, et à 43% pour la zone Baie d'Yves, Île d'Aix . L'analyse des données biologiques (longueur, poids total) souligne un arrêt de croissance inhabituel. Il est sans doute le reflet d'un stress des animaux. Il n'est pas observé d'amaigrissement important sur les deux sites explorés. La mise en évidence dans la littérature de facteurs... |
| Tipo: Text |
Palavras-chave: Rendement production; Mytilus edulis; Moule; Mortalité; Croissance; Pertuis Breton; Baie Aiguillon; Pertuis Antioche. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00074/18511/16051.pdf |
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| Deslous-paoli, Jean-marc. |
| On the contrary to the U. S. where they represent but 4.6% of the total marine production , mollusc, principally bivalves, can no longer be considered as a marginal production. In France, 100 000 ton of oysters, 98% of which is represented by Crassostrea gigas (Héral & al., 1985) and 85 000 ton of mussels (Mytilus edulis, Mytilus edulis galloprovincialis) (Dardignac, 1985) are produced yeraly. Elsewhere, new rearings are being developed, such as pectinidae and Ruditapes philippinarum, on the Atlantic and Mediterranean coasts. The species presently cultured, some of which dependiing only on natural collections (Crassostrea gigas, Mytilus edulis, Mytilus galloprovincialis while others depend on hatchery production, either partially Crasssotrea gigas in... |
| Tipo: Text |
Palavras-chave: Ruditapes decussatus; Ostrea edulis; Mytilus edulis; Crassostrea gigas; Bivalves; Physiology; Digestion; Feeding. |
| Ano: 1986 |
URL: http://archimer.ifremer.fr/doc/1986/acte-7476.pdf |
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| Soletchnik, Patrick; Bouquet, Anne-lise; Mille, Dominique. |
| Flash Info Maline sur les Mortalités d’huîtres et de moules. Dix ans d’une communication concertée entre la profession conchylicole, les services de l’état, le centre technique régional et l’Ifremer. En 2008, des épisodes de mortalité massive touchent le naissain d’huître creuse en élevage sur le littoral français et dans les Pertuis Charentais en particulier. Dans ce contexte une « cellule de crise » est créée, réunissant l’Ifremer, le Creaa, les services de l’Etat (DDTM/17) et les professionnels représentés par leur CRC-PC. L’objectif est de rassembler les informations sur les épisodes de mortalité et de les partager avec la profession de manière concertée. Après chaque réunion, un document synthétique est produit : le « Flash Info Maline », rapidement... |
| Tipo: Text |
Palavras-chave: Mortalité; Huître creuse; Crassostrea gigas; Moule bleue; Mytilus edulis; Communication; Profession; Conchylicuture; Administration; Concertation; Pertuis Charentais. |
| Ano: 2018 |
URL: http://archimer.ifremer.fr/doc/00455/56630/58365.pdf |
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| Gueguen, Marielle; Lassus, Patrick; Laabir, Mohamed; Bardouil, Michele; Baron, Regis; Sechet, Veronique; Truquet, Philippe; Amzil, Zouher; Barille, Laurent. |
| The occurrence of new phytoplankton species in a coastal area may be explained by the import of shellfish containing whole live algal cells in their digestive tracts. Indeed, shellfish containing toxic algal cells can induce both primary contaminations in safe areas ( initially free from toxic microalgae), and secondary contaminations of other shellfish growing in the same area via the faeces of the imported animals. To mitigate this problem, shellfish need to be placed in a separate holding tank and their intestinal content purged. For a deeper understanding of the risks associated with transferring contaminated shellfish, oysters ( Crassostrea gigas) and mussels ( Mytilus edulis) were purposely fed either Alexandrium minutum or A. catenella (... |
| Tipo: Text |
Palavras-chave: Risk assessment; Toxic phytoplankton; Uptake; Gut passage; Mytilus edulis; Crassostrea gigas. |
| Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3897.pdf |
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| Barille, Anne-laure. |
| La Baie de l'Aiguillon fut le berceau de la conchyliculture: les premiers parcs à moules furent établis au XIII""'· siècle par un irlandais P. Walton, naufragé en 1235 prés du port d'Esnande. C'est à lui que l'on attribut l'invention des bouchots. L'élevage traditionnel sur bouchot, initialement implanté à l'intérieur de la Baie de l'Aiguillon, a entraîné un tel envasement, que la culture des moules y est devenue impraticable. Les mytiliculteurs ont du installer leur bouchot à la sortie de la baie. Cette culture représente 20 000 tonnes; ce qui fait . du Pertuis Breton le plus important secteur de production mytilicole de la façade Atlantique. Cet élevage traditionnel occupe actuellement tous les sites exploitables, il faut donc conquérir de nouveaux... |
| Tipo: Text |
Palavras-chave: Hydrobiologie; Capacité trophique; Estimation biomasse; Mytiliculture; Mytilus edulis; Pertuis Breton. |
| Ano: 1993 |
URL: http://archimer.ifremer.fr/doc/00165/27639/25787.pdf |
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| Sam Lone, Anais. |
| Among the applications that facilitate the study of functional processes in living systems, measurement of the spatial distribution of molecules in biological tissues is currently available. Thus, in the field of human health, this application which targets the molecular distributions of altered tissues can be used, for example, in the diagnosis of diseases such as cancers, Alzheimer's disease, muscular myopathy, but also to recognize the distribution of drugs in animal tissues. The principle of imaging by mass spectrometry is to produce a mapping of the surface of a section of tissue, recording at each point a mass spectrum. All these spectra reconstitute so many "ion density maps", called images, that there are peaks of biological interest in the... |
| Tipo: Text |
Palavras-chave: Imagerie par spectrométrie de masse; MALDI-TOF; TOF-SIMS; Acide okadaïque; Glande digestive; Mytilus edulis; Imaging by mass spectrometry; MALDI-TOF; TOF-SIMS; Okadaic acid; Digestive Gland; Mytilus edulis. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00360/47167/47190.pdf |
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| Goulletquer, Philippe; Geairon, Philippe; Faury, Nicole; Razet, Daniel; Soletchnik, Patrick; Gras, Paul; Adessi, L.. |
| In European waters, significant economic damages to wooden structures are caused by bivalves molluscs and crustaceans. Treatments like copper-chrome-arsenic mixtures (CCA) were designed to prevent settlement of these wood borer species. However, limited and conflicting evidence regarding the toxicity to non-target organisms are available in the literature. This report aims to provide insights regarding the CCA leachates' toxicity to an important aquaculture species, the blue mussel Mytilus edulis for which much information on normal and stressed physiology is available for purposes of comparisons. The mussels are usually considered as a particularly suitable species for biological monitoring (Smaal and Widdows, 1994). To address the CCA leachate issue, two... |
| Tipo: Text |
Palavras-chave: Bivalvia; Mussel; Mytilus edulis; Copper-chrome-arsenic (CCA); Treatment; Feeding; Absorption. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00043/15437/12788.pdf |
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| Prou, Jean; Barille, Laurent; Heral, Maurice; Ratiskol, Gilles; Soletchnik, Patrick; Bougrier, Serge; Razet, Daniel; Geairon, Philippe. |
| During a fortnightly tidal cycle, a Mytilus edulis population was submitted to natural food conditions in the bay of Marennes-Oléron. During 4 tidal cycles, in vivo continuous measurements of turbidity and fluorescence were recorded to study the evolution of Total Particulate Matter (TPM), phaeopigments and chlorophyll-a concentrations. Turbidity in the water column is clearly influenced by resuspension of sediment. Degradated cells of phytoplankton were associated with sediments, involving strong correlation between phaeopigments and turbidity. High values of chlorophyll-a were encountered during neap tides when turbidity was low. No relation with resuspension processes were observed. No effect of fortnightly variability on retention was observed by... |
| Tipo: Text |
Palavras-chave: Ancova; Utilisation du matériel particulaire; Mytilus edulis; Moules. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/1994/publication-3079.pdf |
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| Walker, Tony R.; Grant, Jon; Weise, Andrea M.; Mckindsey, Christopher W.; Callier, Myriam D.; Richard, Marion. |
| Downward fluxes of organically rich biodeposits under suspended mussel lines can cause benthic impacts such as changes in benthic community structure or microbial mat production. Quantifying sediment erosion in these coastal ecosystems is important for understanding how fluxes of organic matter and mussel biodeposits contribute to benthic–pelagic coupling. Critical shear velocity (u*crit), erosion rates and particle size distributions of resuspended sediment were measured at four stations distributed along a transect perpendicular to a mussel farm in Lagune de la Grande Entrée, Îles-de-la-Madeleine (Quebec, Canada). Stations were selected underneath the outer-most mussel line (0 m) and at distances of 15, 30 m and at a reference station (500 m) further... |
| Tipo: Text |
Palavras-chave: Sediment erosion; Shear velocity; Resuspension; Biodeposits; Particle size; Mytilus edulis. |
| Ano: 2014 |
URL: http://archimer.ifremer.fr/doc/00202/31287/31925.pdf |
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| Mazurie, Joseph; Le Mao, Patrick; Camus, Patrick; Bacher, Cedric; Goulletquer, Philippe. |
| Integration of shellfish farming along the French shoreline (around 5500 km) has been progressive, as marine bivalve culture is a traditional activity in our country. The history of mussel culture relates that the "bouchot" technique (intertidal culture on wooden poles, producing annually around 60,000 tons) was developed as early as the XIIIth century, by a refugee attempting to capture birds by sticking branches of brushwood along the shore. The European flat oyster, Ostrea edulis, already appreciated at the Roman period, was first cultivated in France after Victor Coste introduced the technique of spat collection at the end of the XIXth century. The Pacific cupped oyster, genus Crassostrea, now the most-cultivated in France (around 120,000 tons marketed... |
| Tipo: Text |
Palavras-chave: Trophic capacity; Trophic resource; Nature conservation; Coastal zone management; Biodiversity; Mytilus edulis; Mussels; Integration; Ostrea edulis; Crassostrea gigas; Oysters. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/acte-3400.pdf |
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| Faucet, Jerome; Maurice, Manuelle; Gagnaire, Beatrice; Renault, Tristan; Burgeot, Thierry. |
| As the marine mussel Mytilus edulis is commonly used as a sentinel species, it would be useful to develop a primary culture of the target organs most often in contact with the marine environment. This study reports an improved method for dissociating the digestive gland and gills of M. edulis and considers the effect of mussel storage on cell viability and functionality before culture initiation. Viability and enzymatic activities such as those of esterase and peroxidase were monitored by flow cytometry, a sensitive, objective technique allowing large volumes of cells to be counted within a short time. A primary culture of digestive gland showed more than 75% viability after 72 h. Mussels were maintained in an aquarium containing clean, oxygenated seawater... |
| Tipo: Text |
Palavras-chave: Mytilus edulis; Gill; Flow cytometry; Digestive gland; Cell culture. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/2004/publication-936.pdf |
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| Dardignac-corbeil, Marie-jose. |
| La Région Poitou-Charentes fournit près de 20% production mytilicole nationale. Cette participation monte à 30% si l'on y ajoute la partie nord du Pertuis Breton qui , administrativement, relève de la Région Pays de Loire mais dont la majeure partie est en fait exploitée par des charentais. Cependant, les rendements des élevages mytilicoles situés sur la côte atlantique sont médiocres. En effet, la moitié des bouchots fournit à peine plus du tiers de la production nationale. On peut alors se demander si les stocks de moules en culture ne sont pas trop importants, ce qui entraînerait un épuisement des capacités biotiques du milieu avec pour conséquence un ralentissement de la croissance. La réponse à cette question demande que soit connue la relation entre... |
| Tipo: Text |
Palavras-chave: Pertuis Breton; Mytililus edulis; Bouchot; Croissance; Pertuis Breton; Mytilus edulis; Bouchot; Growth. |
| Ano: 1987 |
URL: http://archimer.ifremer.fr/doc/00045/15582/12986.pdf |
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| Dardignac-corbeil, Marie-jose. |
| The studies caITied out between 1980 and 1992 in the "Pertuis Breton" demonstrated that mussel growth was systematically reduced near the coastline for a similar emersion time. No relationship was established between current pattern, stocking biomass and growth results. In contrast, poor growth was strongly con'elated to seawater quality and high seston load. Based on these results, the author suggests further studies to adress the issues improved seawater monitoring, studies on factors affecting shellfish quality. Furthermore, specifie studies are proposed to optimize the management of the mussel production in the Pertuis Breton. These include consider how to improve mussel spat recruitment, growth rate, and to specify optimum stocking biomass with... |
| Tipo: Text |
Palavras-chave: Pertuis Breton; Mytilus edulis; Bouchot; Croissance; Pertuis Breton; Mytilus edulis; Bouchot; Growth. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/00045/15581/12985.pdf |
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| Registros recuperados: 143 | |
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