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Registros recuperados: 17
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Comanagement of clams in Brazil: a framework to advance comparison Ecology and Society
Rocha, Ligia M.; Federal University of Rio Grande do Norte, Graduate Program in Ecology; ligiarocha1@gmail.com; Pinkerton, Evelyn; Simon Fraser University, School of Resource and Environmental Management; epinkert@sfu.ca.
Tipo: Peer-Reviewed Reports Palavras-chave: Artisanal fisheries; Clams; Comanagement; Fisherwomen; Marine protected areas; Shell fisheries.
Ano: 2015
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Correlation between perkinsosis and growth in clams Ruditapes spp. ArchiMer
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: http://archimer.ifremer.fr/doc/00166/27733/25951.pdf
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Etudes des activites de peche dans le golfe du Morbihan, peche professionnelle ArchiMer
Peronnet, Isabelle; Talidec, Catherine; Daures, Fabienne.
The objective of the study is to improve knowledge of coastal fishing activity in the halieutic and economic spheres. It consists of three sections: On-board professional fishing, professional shellfish gathering, and leisure fishing, this last one being the subject of an independent report (Lesueur and Drouot). The methodology applied is based on implementation of specific surveys about the ships that frequented the Gulf of Morbihan in 2001. The emphasis was placed on identifying the occupations practiced in this zone, on describing these activities and their intensity as well as on analysing the economic performance of these fleets. The management methods, regulation of shellfish gathering on listed sites as well as their impacts on the environment are...
Tipo: Text Palavras-chave: Urshin; Clams; Shellfish; Fleets; Metiers; Fishing activities; Bay of Morbihan; Brittany; Structure de cout; Oursin; Palourde; Bivalves; Typologie; Flottilles; Metiers; Indicateurs; Activités de peche; Golfe du Morbihan.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-2265.pdf
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Etudes sanitaires pour le classement de zones conchylicoles en Charente Maritime : Rivière de la Seudre (coquillages fouisseurs), Banc de Ronce-Perquis (coquillages fouisseurs), Bouchots des Saumonards (coquillages filtreurs) ArchiMer
Auger, Christian; Noinin, Michel; Roësberg, Didier; Bouquet, Jean-paul.
Trois études de zones ont été conduites en 1997/1998 dans le bassin de Marennes-Oléron (Charente-Maritime). Deux concernaient la contamination des coquillages fouisseurs de la Seudre et du banc de Ronce-Perquis. La troisième concernait la contamination des coquillages filtreurs des bouchots à moules des Saumonards (Ile d'Oléron). Ces études avaient pour objet d'évaluer les niveaux de contamination microbiologique et chimique de ces zones de production de coquillages afin que l'Administration puisse en effectuer le classement sanitaire conformément à l'arrêté du 21 juillet 1995. La Seudre, à l'aval de la rivière, a montré, pour les fouisseurs, une qualité microbiologique de catégorie B et une qualité microbiologique de catégorie C pour la partie amont. De...
Tipo: Text Palavras-chave: Etude de zones; Marennes-Oléron; Charente-Maritime; Coliformes fécaux; Qualité chimique; Qualité microbiologique; Palourdes; Coques; Moules .; Sanitary studies; Marennes-Oléron; Charente-Maritime (France); Faecal coliforms; Chemical quality; Microbiologie quality; Chemical content; Clams; Cockles; Mussels; Burrowing and filter-feeder shell ..
Ano: 1999 URL: http://archimer.ifremer.fr/doc/00132/24281/22279.pdf
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Evaluation directe du stock de praires Venus verrucosa en rade de Brest ArchiMer
Pitel, Mathilde; Fifas, Spyros; Berthou, Patrick.
In the 1960s, with a drop in the king scallop stock, the clam became a substitution resource with productions of over 400 tonnes. The drop in the production until the disruption of the fishery in the 1980s is the combined consequence of the increase of the fishing capacities with an unfavourable populating demographic strategy. Large deposits are fairly rare. In 7 years, only one age group, born in 1971, withstood the fishery. Many age groups of satisfactory abundance, from the end of the 80s on, combined with a total disruption of the fishery for a few years, lead to a recovery of the stock with fishing levels equivalent (today) to those of the 1950s. The clam, though less iconic than the king scallop in the local context, has now been for a number of...
Tipo: Text Palavras-chave: Campaign; Jeancani; Survey; Venus verrucosa; Clams; Bay of Brest; Brittany; Jeancani; Campagne à la mer; Venus verrucosa; Praires; Rade de Brest; Bretagne.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-4603.pdf
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Evaluation du stock de praires en rade de Brest ArchiMer
Pitel, Mathilde; Martin, Stephane; Fifas, Spyros; Huet, Jerome; Berthou, Patrick.
Pendant les années 50, la praire a joué un rôle secondaire dans le contexte maritime local. Au cours des années 50, cette espèce était ciblée par une flottille différente de la coquille Saint-Jacques de la rade de Brest, à capacité de capture modeste (flottille du Relecq Kerhuon) permettant la réalisation des captures annuelles moyennes de l'ordre de 150 tonnes. La décennie 60, après l'effondrement du stock coquillier a vu la praire occuper une place de ressource de substitution pour atteindre des productions dépassant les 400 tonnes. Les premières étapes de l'évolution de cette pêcherie sont détaillées par Le Gall (1969) et Piboubès (1973). Petit à petit, la flottille s'est transformée (à partir des années 70, entrée progressive des goémoniers dans la...
Tipo: Text Palavras-chave: Jeancani; Venus verrucosa; Clams; Bay of Brest; Brittany; Jeancani; Venus verrucosa; Ressource de substitution; Praires; Rade de Brest; Bretagne.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-4602.pdf
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Evaluation du stock de praires en rade de Brest - 2001 ArchiMer
Pitel, Mathilde; Fifas, Spyros; Huet, Jerome; Berthou, Patrick.
During the 1950s, the clam played only a bit part in the local maritime context. It was the focus of a different fleet than the king scallop fleet, with a lesser fishing capacity (fleet from the Relecq Kerhuon) and an average annual catch of around 150 tonnes. In the 1960s, with a drop in the king scallop stock, the clam became a substitution resource with productions of over 400 tonnes. The first stages of this evolution are detailed by Le Gall (1969) and Piboubès (1973). Slowly, the fleet developed (from the 70s on, with the progressive arrival of seaweed boats in the fishery) The drop of the production until the disruption of the fishery in the 1980s is the combined consequence of the increase of the fishing capacities with an unfavourable populating...
Tipo: Text Palavras-chave: Venus verrucosa; Stock assessment; Clams; Bay of Brest; Brittany; Venus verrucosa; Évaluation de stock; Praires; Rade de Brest; Bretagne.
Ano: 2001 URL: http://archimer.ifremer.fr/doc/2001/rapport-4607.pdf
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Facteurs contrôlant la croissance de Ruditapes philippinarum dans 4 nurseries de production en Charente-Maritime (France) ArchiMer
Heral, Maurice; Deslous-paoli, Jean-marc; Garnier, Jacqueline; Prioul, Daniel; Heurtebise, Serge; Razet, Daniel.
Different types of pregrowth of the Japanese palourde are compared on the some site. The method by upwelling which is the more common used, to have good growth, requires a compromise between the running and the raised biomass. Two periods are critical, in the summer the growth of mollusks is stopped because of a decrease in the phytoplanktonic production ; in the winter, a fall in temperature lessens filtration and stops growth. The results concern clams consummatation rates of particular food (chlorophyll, protids, lipids, glucids) as weIl as the way to supply the decreasing growth : increase of phytoplankyonic production in the summer by recycling waters from nurseries that are loaded with ammoniac and raise winter temperatures by using under-ground...
Tipo: Text Palavras-chave: Nursery; Growth; Ruditapes philippinarum; Clams; Nurserie; Croissance; Ruditapes philippinarum; Palourdes.
Ano: 1982 URL: http://archimer.ifremer.fr/doc/1982/acte-2951.pdf
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Grossissement des juveniles de palourdes "Ruditapes decussatus" (l., 1758), sur l’estran de Zarat (golfe de Gabès, Tunisie), dans des conditions expérimentales. OceanDocs
Zouari, M.; Hitonori, N.; Lymayem, Y.; M'Rabet, R.; Dhraief, M.N.; Missaoui, H.; Guergej, H.; Kraiem, M.M..
Le potentiel de grossissement de la palourde Ruditapes decussatus (L. 1758), élevée dans des poches de filet de 1 m2 de surface, a été évalué sur l’estran de Zarat (golfe de Gabès) pour la période de juillet 2006 à novembre 2007. Dans une première expérience, trois niveaux de la marée, représentant des chenaux de drainage de l’eau, existants entre la ligne de marée haute et celle de marée basse, ont été comparés sur une durée de 16 mois. Chacun des niveaux a été représenté par un triplicata de sacs de 150 individus. Dans une seconde expérience, trois densités de mise en charge différentes ont été comparées sur une durée de 17 mois. Pour cela, deux sacs de 100 individus chacun et deux autres de 200 individus chacun ont été alignés à l’expérience précédente,...
Tipo: Journal Contribution Palavras-chave: Clam culture; Comparative studies; Environmental conditions; Estuaries; Experimental culture; Growth; Growth rate; Marine aquaculture; Marine molluscs; Population density; Rearing; Stocking density; Clams.
Ano: 2009 URL: http://hdl.handle.net/1834/4495
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Infection of clams by Perkinsus olseni as an example of the new French Surveillance Programme ArchiMer
Miossec, Laurence; Garcia, Celine; Arzul, Isabelle; Francois, Cyrille; Joly, Jean-pierre; Chollet, Bruno; Robert, Maeva; De Blas, Isabelle.
The French network for the surveillance and monitoring of mollusc health (REPAMO) was officially set up in 1992 to control the shellfish status along the French coasts according to the European directives 91/67/EEC and 95/70/EC. The objectives are 1) the surveillance of notifiable diseases present in France (Bonamiosis and Marteiliosis of flat oysters Ostrea edulis), 2) the surveillance of health status of cultured and wild populations of molluscs, 3) the study of abnormal mortality and 4) the control of exchanges from European and third countries. In this context, a new surveillance programme, called Active Targeted Survey, part of the REPAMO, was applied in 2004 in order to improve the monitoring of the health status of the French mollusc populations...
Tipo: Text Palavras-chave: Surveillance; Bivalvia; Clams; Perkinsus olseni; Pathogen; Pathology.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-6376.pdf
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La mytiliculture en Hollande et en Espagne ArchiMer
Antona, Martine; Paquotte, Philippe.
This article is the second part of an analysis of mussel-farming sectors in France, Holland and Spain. The first part, devoted to France, addressed the national offering's stresses of adapting to changes in the mussel market. From the viewpoint of questions raised within the profession while preparing the French mussel-farming sector for the regulatory and economic environment of 1992, Spain and Holland offer benchmarks in terms of structuring the offer and planning markets. This article presents the mussel-farming business in Spain and Holland from these two angles.
Tipo: Text Palavras-chave: Economic evaluation; Urshin; Clams; Shellfish; Fleets; Metier; Fishing activities; Bay of Morbihan; Brittany; SEM; Cout; Indicateurs economique; Palourde; Oursin; Bivalves; Typologie; Flottilles; Metier; Activités de pêche; Golfe du Morbihan.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/1990/rapport-2252.pdf
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La pêche de loisir dans le golfe du Morbihan ArchiMer
Boude, Jp; Lesueur, M; Daures, Fabienne; Guyader, Olivier; Drouot, Bruno.
Leisure fishing, open to everyone and without a license, is a leisure activity in which many people are interested. Conversely to other harvesting activities such as fresh water fishing and hunting, it has practically not been studied until now (Appéré et Bonnieux, 2002). This study, dedicated to practice of leisure fishing at sea in the Gulf of Morbihan, set itself several objectives: - collect and assemble the available knowledge on regulations and practice of maritime leisure fishing - assess the amount of harvesting of certain recreational types of fishing and the economic impact generated by this activity, - highlight the problems of existing or potential cohabitations among the various users of the space and resources in the Gulf. - develop an...
Tipo: Text Palavras-chave: Economic evaluation; Shellfish; Clams; Morbihan bay; Brittany; Leisure fishing; Cout de transport; Palourdes; Interactions; Conflits d'usage; Evaluation economique; Impact sur la ressource; Reglementation; Peche en bateau; Peche de plaisance; Peche à pied; Peche de loisir; Activités de peche; Golfe du morbihan.
Ano: 2003 URL: http://archimer.ifremer.fr/doc/2003/rapport-2244.pdf
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Local and regional strategies for rebuilding fisheries management institutions in coastal British Columbia: what components of comanagement are most critical? Ecology and Society
Pinkerton, Evelyn; Simon Fraser University; evelyn_pinkerton@sfu.ca; Angel, Eric; Simon Fraser University; eangel@sfu.ca; Ladell, Neil; Simon Fraser University; nladell@sfu.ca; Williams, Percy; Gwayasdums, BC; gwayasdums@hotmail.com; Nicolson, Midori; Land & Marine Resources Director, Dzawadaenuxw First Nation; midorin@telus.net; Thorkelson, Joy; United Fishermen and Allied Workers Union-UNIFOR; ufawupr@citytel.net; Clifton, Henry; Native Brotherhood of British Columbia; buddy_65@hotmail.com.
Aboriginal and nonaboriginal fishing-dependent communities on the coast of British Columbia, Canada, having lost traditional fisheries management institutions along with significant fishing opportunity, are in the process of rebuilding local and regional institutions to allow their survival. Sometimes, the rebuilding effort involves the creation of largely new institutions. It can also involve the reactivation, reinvention, or repositioning of older ones. We consider the aspirations, strategies, and activities of organizations in two regions of the coast involved in two different fisheries: salmon on the north coast and intertidal clams in the Broughton Archipelago. We analyze what the two regions have in common, as well as their differences, to generate...
Tipo: Peer-Reviewed Reports Palavras-chave: Clams; Fisheries comanagement; Necessary conditions; Regional institutions; Salmon.
Ano: 2014
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Molecular characterization of parasites of the genus Perkinsus present in clams from French producing areas ArchiMer
Arzul, Isabelle; Michel, Justine; Chollet, Bruno; Robert, Maeva; Miossec, Laurence; Garcia, Celine; Francois, Cyrille.
Production of clams is the third most important bivalve production in France and was estimated at 3400 metric tons in 2001 among which 60% came from aquaculture and 40% from fisheries. Surveillance of clam diseases mainly relies on histology and thioglycolate culture, two techniques allowing detection of parasites of the genus Perkinsus but not specific enough to determine the parasite species. Based on a previous study aiming at estimating distribution and prevalence of perkinsosis in France, we selected 34 infected clams from 4 different producing areas in order to characterize the parasite species. Molecular characterization was done by PCR-RFLP targeting the ITS region as described by Abollo et al. (2006). 16 PCR products were cloned and 10 to 20...
Tipo: Text Palavras-chave: French producing areas; Clams; Perkinsus olseni; Parasite.
Ano: 2009 URL: http://archimer.ifremer.fr/doc/2009/acte-6269.pdf
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Observations sur le cycle complet d'élevage de palourdes et de clams en surélévation ArchiMer
Latrouite, Daniel; Claude, Serge.
First rearing attempts with the european clams Ruditapes decussatus, the pacific clams Ruditapes philippinarum and the clam Mercenaria mercenaria have been realized by placing the bood into grating cages above the ground. This technic permits a good survival during the so-called "pre-growth" stage. However, if rearing of juveniles is persued beyond 2 centimeters, growth is strongly delayed and mortality increases due to valve distortion and shell infection by parasitic worms.
Tipo: Text Palavras-chave: Elevage; Palourde; Ruditapes philippinarum; Ruditapes decussatus; Clams; Mercenaria mercenaria; Technique.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/00021/13261/10308.pdf
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Perspectives de développement de l'élevage de la palourde japonaise Ruditapes philippinarum dans le bassin ostréicole de Marennes-Oléron ArchiMer
Goulletquer, Philippe; Nedhif, Mohamed; Heral, Maurice.
The complete Manila clam's breeding cycle (Ruditapes philippinarum ) in oysters ponds (claires) permits to obtain a length of 25 mm after 1 year with a density range of 200 animals/m2 . As the primary production is restricted, the breeding biomass during the second year is limited to 500 g.m2 corresponding to a density between 30 to 50 clams..m-2. For an increase of the production it is necessary to extend the cultivated area to the tida1 bottom of the Bay of Marennes-Oleron. It appears that the man tidal level between + 2 and + 2.5 15 necessary with a density range of 200.m-2 to reach, the market size nine months later. The harvest sould be done before winter time to avoid a large 1055 of the flesh which can cause high levels of mortality.
Tipo: Text Palavras-chave: Marennes Oleron; Breeding; Clams; Ruditapes philippinarum; Marennes Oléron; Elevage; Palourdes; Ruditapes philippinarum.
Ano: 1986 URL: http://archimer.ifremer.fr/doc/1986/acte-2966.pdf
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Shellfish viruses ArchiMer
Renault, Tristan.
Mortalities in a number of commercially important mollusc species have been associated with the detection of viruses belonging to several families. The first description of a virus was in adult eastern oyters, Crassostrea virginica, with the detection of virus particles resembling members of the family Herpesviridae. Subsequently, mass mortalities in French stocks of adult Portuguese oysters, C. angulata, were associated with irido-like virus infection. Other viruses observed in molluscs are described as members of the families Iridoviridae, Papovaviridae and Reoviridae. Little information is available on viral infections that affect molluscs due to primarily to the inadequacy of diagnostic methods that are employed when mass mortality events occur. Most...
Tipo: Text Palavras-chave: Virus; Scallops; Picornavirus; Oyter herpesvirus 1; Oysters; Molluscs; Irido Like virus; Diseases; Herpesvirus; Clams; Bivalves; Birnavirus; Abalones.
Ano: 2008 URL: http://archimer.ifremer.fr/doc/2008/publication-4932.pdf
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