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Mortalité du tourteau Cancer pagurus provoquée par le dinoflagelle parasite : Hematodinium sp. ArchiMer
Latrouite, Daniel; Morizur, Yvon; Noel, Philippe; Chagot, Dominique; Wilhelm, G.
Unusural crab mortality in winter led us to identify a Hematodinium like parasitic dinoflagellate in the blood of edible crabs Cancer pagurus. Crabs from several fishing areas (the English Channel, the Iroise sea, the bay of Biscay, off Scotland) and from one area of the Channel shore were examined. The crab parasit was found everywhere we investigated and throughout the year. The prevalence which was found independant of the intermolt stage, sex and size of crabs was higher inshore than offshore. The pathogenicity is assumed to differ according to season.
Tipo: Text Palavras-chave: Edible crab; Pathology; Bay of Biscay; Iroise sea; Channel; Parasite; Mortality; Hematodinium; Bitter crab desease; Dinoflagelle; Aquiculture; Cancer pagurus; Mortalité; Hematodinium; Cancer pagurus; Tourteau; Pathologie.
Ano: 1988 URL: http://archimer.ifremer.fr/doc/1988/acte-1418.pdf
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Scénarios d'aménagement des activités de pêche dans la bande cotière bretonne : rapport 2001 ArchiMer
Talidec, Catherine; Boncoeur, Jean; Alban, Frédérique; Curtil, Olivier; Le Floc'H, Pascal; Le Gallic, Bertrand; Pennanguer, Stéphane; Berthou, Patrick; Fifas, Spyros; Latrouite, Daniel.
This document is the 2001 activity report delivered by IFREMER, CEDEM (IUEM, UBO) and ENSA of Rennes for a co-financed study by the Brittany region within the framework of the XII CPER. This report is composed of: - an IFREMER study on the historical evolution of the Breton fleet created using data from the "halieutic observations system" (SIH) and surveys on the economic activity of fishing ships. The study is most interested in the Mor Braz and the Sea of Iroise sites. - an analysis by CEDEM of the legal and economic aspects of fishing along the coastal strip through two case studies: A seasonal break from bottom trawling and the diversification of professional fishing towards tourist and recreational economic activities. - a study by ENSA of Rennes on...
Tipo: Text Palavras-chave: Recreative fishing; Professionnal fishing; Breton fisheries; Survey; Data collection; Fishing fleet; Metier; Fishing activites; Brittany; Golfe du Morbihan; Mer d'Iroise; Mor Braz; Reglementation; Pêche de loisir; Pêche professionnelle; Pêcherie bretonne; Enquêtes; Collectes de données; Flottilles; Metier; Opérations de pêche; Bretagne.
Ano: 2002 URL: http://archimer.ifremer.fr/doc/2002/rapport-2289.pdf
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Pêche de la langouste rouge Palinurus elephas en france. Eléments pour fixer une taille marchande ArchiMer
Latrouite, Daniel; Noel, Philippe.
From the end of XIX century to the 1950', spiny lobster (Palinurus elephas) fishing has been an important economical activity for potters of Brittany and led to landings over two thousands tons. Later, impoverishment of traditional fishing grounds and closure, to French fleet, of foreign fishing area obliged a reconversion of potters toward crabs (edible crab and spider crab). Recently in the 80', development of a netting activity has restarted catches of spiny lobster (at a modest scale). Presently, the only reglementary measure concerning this species/metier is a national minimum legal size (total length) but European Commission has wished that a European MLS would be established. In that aim, this paper presents the main features of spiny lobster...
Tipo: Text Palavras-chave: Reproduction; Fishery; France; Atlantic; Droit; Commerce; Size; Spiny lobster; Palinurus elephas; Biometry; Fishing; Reproduction; Biométrie; Pêche; Palinurus elephas; Langouste rouge.
Ano: 1997 URL: http://archimer.ifremer.fr/doc/1997/acte-1415.pdf
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Etude des stocks halieutiques de langoustes au Cap Vert et proposition de modalités de gestion de ces stocks - Rapport de mission 5 au 15 décembre 1996 ArchiMer
Latrouite, Daniel.
Cette mission s'inscrit en exécution de la Convention franco-capverdienne "Appui aux filières productives primaires au Cap Vert", composante 03 Pêche", financée par le Fond d'Aide et de Coopération (Convention n° 95005500 du 17 janvier 1996). Elle a été réalisée conformément aux termes du protocole n°96/1212642/F entre la Mission Française de Coopération et d'Action Culturelle à Praïa et l'Institut Français de Recherche pour l'Exploitation de la Mer. Elle constitue la prestation "mission d'expert Ifremer au Cap Vert" prévue pour l'année 1996. Elle avait pour objectifs particuliers: - dans le cadre de la Réunion sur l'Investigation et la Gestion Halieutique au Cap Vert, établir et présenter un point sur les ressources en langoustes, leur exploitation et...
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Ano: 1996 URL: http://archimer.ifremer.fr/doc/00069/17980/15508.pdf
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Identification biogéographique des principaux stocks exploités en Manche, relations avec ceux des régions voisines ArchiMer
Bennet, D; Casey, J; Dare, P; Dawson, W; Flatman, S; Hulme, T; Macer, C; Millner, R; Pickett, G; Vince, M; Lorance, Pascal; Souplet, A; Giret, M; Morin, Jocelyne; Berthou, A; Latrouite, Daniel; Morizur, Yvon; Bossy, S; Ozanne, S.
At present, the majority of fisheries are monitored and regulated in areas which are delineated by arbitrary ICES boundaries which do not necessarily have logical or consistent relationships with biological processes or fish movements. The biogeographical identification of Channel stocks is, therefore, an important step towards developing a rational strategy for the management of their fisheries. This synthesis is based on the wide available knowledge which has not been yet entirely exploited with the purpose of stock identification, for 25 commercially important species in the Channel. In addition, principal technics for stock identification are reviewed likewise environmental characteristics of the Channel, which represent fundamental components in...
Tipo: Text Palavras-chave: Environnement physico chimique; Méthodes d'identification; Migrations; Zones de ponte; Distribution géographique; Espèces exploitées; Identité de stock; Manche; Physical environment; Identification methods; Migrations; Spawning areas; Geographical distribution; Exploited species; Stock identification; Channel.
Ano: 1993 URL: https://archimer.ifremer.fr/doc/1993/rapport-719.pdf
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Review of the biology, ecology and fisheries of Palinurus spp. species of European waters: Palinurus elephas (Fabricius, 1787) and Palinurus mauritanicus (Gruvel, 1911) ArchiMer
Gõni, R; Latrouite, Daniel.
Palinurus elephas and Palinurus mauritanicus are the only species of the family Palinuridae that occur in the Northeast Atlantic and Mediterranean. Of the two, Palinurus elephas is the most abundant and accessible and has traditionally been the preferred target of lobster fisheries throughout its range. Palinurus mauritanicus has a deeper distribution and has been an important target of fisheries mainly in the Central Eastern Atlantic. The high unit value and the relative scarcity of these species have been important obstacles to research and knowledge of their biology, ecology and fisheries is limited. Nevertheless, over time a considerable number of studies has been conducted, though most of these are contained in university theses or in publications of...
Tipo: Text Palavras-chave: Fisheries; Ecology; Biology; European waters; Spiny lobsters; Review.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/publication-3625.pdf
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Le développement de la crépidule sur le gisement de coquilles Saint-Jacques de la baie de Saint-Brieuc ArchiMer
Dupouy, Hervé; Latrouite, Daniel.
Tipo: Text
Ano: 1979 URL: http://archimer.ifremer.fr/doc/1979/publication-7161.pdf
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Données sur la biologie de Ruditapes philippinarum et Ruditapes decussatus en élevage sur la côte morbihannaise ArchiMer
De Kergariou, Gabriel; Latrouite, Daniel; Perodou, D.; Claude, Serge.
Des essais d'élevage de palourdes en milieu ouvert ont été réalisés sur le littoral morbihannais en 1979 et 1980. R. philippinarum atteint une taille commercialisable au bout de 18 mois à 2 ans suivant le site et la densité au semis. Les taux de survie observés sont supérieurs à 50% pour les essais réalisés en 1979, mais inférieurs pour ceux effectués en 1980. Une mortalité quasi totale de R. decussatus a été observée après 6 mois d'élevage, et la croissance des individus survivants est nettement moins rapide que pour l'espèce précédente. Les résultats montrent que R. philippinarum est mieux adaptée, et ils permettent de proposer un protocole d'élevage pour le secteur considéré.
Tipo: Text Palavras-chave: Palourdes; Biologie; Ruditapes philippinarum; Ruditapes decussatus; Elevage; Morbihan.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/00021/13258/10305.pdf
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Observations of chondrichthyan fishes (sharks,rays and chimaeras) in the Bay of Biscay (North-eastern Atlantic) from submersibles. ArchiMer
Lorance, Pascal; Latrouite, Daniel; Seret, Bernard.
Forty one manned submersible dives were carried out during 2 cruises in the Bay of Biscay covering a range of depth from about 100 to 2100 m. Chondrichthyan species were observed in most of the dives, some of them were easily identified and their behaviour could be studied. Twenty-two chondrichthyan species (9 sharks, 8 rays and 5 chimaeras) were recorded. Shark species were always seen active except Scyliorhinus canicula and Galeus melastomus. Some representatives were found motionless on the bottom, sometimes forming groups for the first species. Chimaeras appeared to strongly react to the presence of the submersible. The density of chondrichtyes and their relative frequency in the total fish assemblage were estimated, the results are globally consistent...
Tipo: Text Palavras-chave: Submersible; Deep Sea; Bay of Biscay; ANE; Chondrichthyans.
Ano: 2000 URL: http://archimer.ifremer.fr/doc/2000/acte-2571.pdf
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Synthèse hydrobiologique du site électronucléaire de Flamanville ArchiMer
Dreves, Luc; Lampert, Luis; Abernot, Chantal; Martin, Jocelyne; Arzel, Pierre; Dumas, Franck; Latrouite, Daniel; Schlaich, Ivan; Woehrling, Daniel.
This synthesis report assesses the current state of the marine hydrobiological knowledge acquired in the surroundings of the Flamanville electronuclear site (north-west of Cotentin), in the framework of the various project and monitoring programs in the pelagic, benthic and halieutic domains carried out on this site since 1976. Each domain is divided, as much as necessary, into different study areas such as hydrobiology, phytoplankton, microbiology, crustacean larvae or macrophyte algae. For each area, a series of parameters, considered as representative of the evolution of this area, is studied. In this way, for the hydrological area, the sea water temperature and salinity, the mineral nutriment concentrations, the holagen compounds and the boron are...
Tipo: Text Palavras-chave: Pelagos; Halieutique; Benthos; Surveillance; Synthèse; Flamanville; Centrale nucléaire.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/rapport-6405.pdf
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L'exploitation de la coquille Saint-Jacques Pecten maximus (L.) en France - 2ème partie : Evaluation et gestion du stock de la baie de Saint-Brieuc ArchiMer
Dupouy, Hervé; De Kergariou, Gabriel; Latrouite, Daniel.
Les études de dynamique de population, poursuivies depuis 1974 sur le gisement coquillier de la baie de St-Brieuc, ont permis d'acquérir une bonne connaissance du stock et de son évolution. Sur le plan biologique, certaines caractéristiques, relativement stables, du stock ont été définies : il s'agit de la croissance en taille et en poids, de l'âge de la première maturité sexuelle, du cycle de reproduction et de la mortalité naturelle. Cependant l'importance du recrutement demeure très aléatoire. Les campagnes de recherches à la mer permettent de prévoir un ou deux ans avant leur entrée dans les captures, l'importance des recrues et donc de définir des quota adaptés aux fluctuations du stock. Le système de quota mis en place en 1975 a été accompagné par...
Tipo: Text
Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/publication-7030.pdf
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Données sur la reproduction et la taille de première maturité du homard Homarus gammarus d'Iroise et du golfe de Gascogne ArchiMer
Latrouite, Daniel; Leglise, Michel; Raguenes, Gérard.
This paper deals with the lobsters caught by French fishermen off the "Conquet" (Iroise sea) and off "Ile d'Yeu" (Biscay Bay) on the French atlantic coast. The size at first maturity, defined as the size at which 50 % of female are able to reproduce, is deduced from the analysis of size frequency in landings. It is also shown that more than 50 % of the mature female are spawing each year ; the periods of hatching in the natural environment are also established.
Tipo: Text Palavras-chave: Size at maturity; Western Channel; Reproduction; Homarus gammarus; Lobster; Atlantic; Biscay Bay; Iroise sea; Golfe de Gascogne; Iroise; Manche; Taille de maturité; Reproduction; Homarus gammarus; Homard.
Ano: 1981 URL: http://archimer.ifremer.fr/doc/1981/acte-1414.pdf
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Étude préparatoire a une reconquête des niveaux de ressource en langouste royale (Palinurus elephas) en mer d'Iroise ArchiMer
Latrouite, Daniel; Lazure, Pascal.
The study conducted in the framework of an agreement between Ifremer and the Local fisheries committee at Audierne is part of a project to restore spiny lobster Palinurus elephas stock levels in the Iroise Sea. It is supported by professional fishermen from Finistère and by the Regional fisheries committee of Brittany. After a brief review of the way lobster stocks are managed worldwide, followed by the major biological and ecological features of red lobster and the state of fisheries in Europe and North Africa, the very poor state of the resource along French coast is borne out by the statistics of landings. Various scenarios (not alternatives) to promote the rebuilding of the biomass are suggested: minimum landing size increase, seasonal closure of...
Tipo: Text Palavras-chave: Phyllosoma; Iroise; Stock; Rebuilding; Overfishing; Palinurus elephas; Red lobster; Phyllosomes; Iroise; Stock; Reconstitution; Surexploitation; Palinurus elephas; Langouste rouge.
Ano: 2005 URL: http://archimer.ifremer.fr/doc/2005/rapport-1198.pdf
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La flottille artisanale française de Manche Ouest. Bilan des connaissances ArchiMer
Morizur, Yvon; Berthou, Patrick; Latrouite, Daniel; Veron, Gerard.
A survey made during 1986-1987 on the artisanal fleet of the artisanal fleet in Northern Brittany and Western part of Cotentin allowed to describe this fleet in term of activity and metiers. Catches are given by species and by type of fishing activity. The result permit to outline interactions between the various activities and exploited resources. A summary of knowledge on exploited species is given.
Tipo: Text Palavras-chave: Flottille; Métiers; Typologie; Interactions; Expèces exploitées; Manche; Fleet; Metiers; Interactions; Exploited species; Channel.
Ano: 1990 URL: http://archimer.ifremer.fr/doc/00422/53390/54252.pdf
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Observations ichtyologiques effectuées en 1982 ArchiMer
Delmas, Guy; Quero, Jean-claude; Duron, M; Fonteneau, Joseph; Lafon, A; Latrouite, Daniel.
The authors give data on the catches, during 1982, of Chaunax pictus from Bay of Biscay, of Carcharhinus sp. from Arcachon basin and of scabbard-fish Lepidopus caudatus from la Rochelle. They notify of rather abundant observations of sunfish Mola mola, perhaps in connection with the hot summer. NOT CONTROLLED OCR
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Ano: 1983 URL: http://archimer.ifremer.fr/doc/1983/publication-3664.pdf
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Stockage et transport des crustacés vivants ArchiMer
Chartois, Herve; Latrouite, Daniel; Le Carre, P.
Fishing and trade of living crustaceans are dynamic commercial sectors in France. 25 000 tons of local or imported crabs, lobsters , crawsfishes are yearly treated. Based upon a literature review and fishmongers interviews, this study describes the current pratices and problems associated to live crabs and lobsters storage. Supply conditions of live crustaceans, marketing networks, and biological, ecological and physiological characteristics of crustaceans were discussed. Morever, storage facilities, their operating rules and factors affecting the survival rate under storage and transportation conditions were reviewed.
Tipo: Text Palavras-chave: Lobsters; Crabs; Shellfish; Survival rate; Transport; Storage; Crustacean; Fishery products; Langoustes; Homards; Crabes; Physiologie; Survie; Transport; Stockage; Crustacés.
Ano: 1994 URL: http://archimer.ifremer.fr/doc/1994/rapport-634.pdf
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Variablility of stable isotope signatures (delta C-13 and delta N-15) in two spider crab populations (Maja brachydactyla) in Western Europe ArchiMer
Bodin, Nathalie; Le Loch, Francois; Hily, Christian; Caisey, Xavier; Latrouite, Daniel; Le Guellec, Anne-marie.
The ontogenic variations of nitrogen and carbon stable isotopic signatures (delta N-15 and delta C-13) were investigated in two spider crab (Maja brachydactyla) populations inhabiting in different biotopes of Western Europe. The Iroise Sea population is localized in Western Brittany and characterized by a seasonal migration occurring on a large bathymetric and habitat gradient while the Seine Bay population, in the Eastern English Channel, remains in a more homogeneous environment during its migration. In the Iroise Sea population, delta C-13 Values increased significantly both with body size and age, revealing a shift towards "benthic-component" prey with spider crab growth. On the contrary, neither body size nor ageing gave rise to a significant trophic...
Tipo: Text Palavras-chave: Migration; Marine decapod crustaceans; Growth; Feeding; Carbon and nitrogen stable isotopes.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/publication-2535.pdf
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Essai de culture suspendue de la Coquille Saint Jacques Pecten maximus: influence de la transplantation sur le développement gonadique ArchiMer
Latrouite, Daniel; Claude, Serge.
La mise au point et le développement de techniques de captage en milieu naturel et de production en milieu contrôlé permettent d'envisager pour la coquille Saint Jacques une aquaculture extensive du type de celle réalisée pour l'huître sur parc non découvrant : un ou plusieurs centres favorables à la collecte du naissain pourvoient en juvéniles des secteurs propices à l'élevage. Une plus value marchande peut être obtenue lorsque le changement de milieu s'accompagne de modifications physiologique ou organoleptiques. Ainsi, la présence de la glande génitale développée (ou corail) est particulièrement appréciée du consommateur français. Cet état s'observe tout au long de l'année sur les gisements de Bretagne Sud et de Rade de Brest alors qu'en Baie de Saint...
Tipo: Text Palavras-chave: Conchyliculture; Coquille Saint Jacques; Captage; Croissance; Mortalité; Elevage.
Ano: 1979 URL: http://archimer.ifremer.fr/doc/00015/12660/9531.pdf
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Observations sur la maturité sexuelle et la ponte du tourteau Cancer pagurus en Manche ArchiMer
Latrouite, Daniel; Noel, Philippe.
Few observations have been reported on the reproductive cycle and size at maturity of female edible crab in the Channel. This could be linked to non catchability of berried females. During the present study carried over three different years, females were taken from commercial catches prior to the spawning period and placed in tanks in the laboratory. The various criteria used to establish the mean size at first maturity are discussed and the relation between size and functional maturity is described. The smallest berried females are at a carapace length of 76mm, and maximum values are reached at about 105mm. The mean value is between 85 and 90mm carapace length. The duration of the spawning period was the same in each years, extending from mid-November to...
Tipo: Text Palavras-chave: Spawning; Sexual maturity; Reproduction; Channel; Cancer pagurus; Edible crab; Reproduction; Ponte; Manche; Tourteau; Maturité sexuelle; Cancer pagurus.
Ano: 1993 URL: http://archimer.ifremer.fr/doc/1993/acte-1420.pdf
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Bilan des essais d'élevage de la palourde sur le littoral Morbihannais - 1981 ArchiMer
De Kergariou, Gabriel; Latrouite, Daniel; Perodou, D.; Claude, Serge; Jomier, L..
Le contrat de pays d'Auray avait permis de réaliser en 1979 une première série d'essais d'élevage de palourdes en milieu ouvert. Les résultats ont été exposés dans un rapport intitulé: "Bilan des essais d'élevage de la palourde sur le littoral morbihannais" diffusé en Décembre 1979. Les principales conclusions en étaient les suivantes: - la protection des semis contre les prédateurs (crabes verts) est essentielle : le barrage à naissain utilisé traditionnellement en ostréiculture donne de bons résultats dans ce domaine. - la palourde du Pacifique (R. philippinarum) a une croissance et un taux de survie supérieurs à céux de la palourde locale et de ce fait semble mieux adaptée à ce type d'élevage. Le crédit restant (annexe) a permis de financer une seconde...
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Ano: 1981 URL: http://archimer.ifremer.fr/doc/00046/15697/13099.pdf
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