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| Registros recuperados: 24 | |
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| Buestel, Dominique; Nicolas, R.; Morize, E.; Rohan, R.; Latrouite, Daniel; Le Borgne, Y.; Cochard, Jean-claude; Flassch, Jean-pierre; Uno, Yutaka; Audouin, Jacques; Legall, J.y.; Jezequel, M.; Lorec, J.; Henocque, Yves; Reveche, C.; Girin, Michel; Laurec, Alain; Herry, P.. |
| L'aquaculture extensive et le repeuplement sont deux modes d'exploitation des ressources halieutiques qui ne font appel, une fois les juvéniles produits, ni à un apport de nourriture artificielle, ni à un contrôle continu de la part de l'exploitant, mais dépendent par contre de la productivité du milieu marin, Cette approche repose sur l'idée que le principal facteur limitant d'une population naturelle est le faible nombre de survivants après les premiers stades, et que l'on peut par alevinage, aménagement du milieu ou autres techniques, augmenter la production d'une espèce exploitable, Le but de ces journées d'étude est de faire le point des connaissances sur ces sujets, à l'intention des scientifiques mais aussi des utilisateurs, Il a paru souhaitable de... |
| Tipo: Text |
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| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00018/12941/9907.pdf |
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| Flassch, Jean-pierre. |
| Le programme de lutte contre le vibrion est développé sur 2 fronts, le suivi épidémiologique des zones d'élevages et les recherches spécifiques pour la lutte et la compréhension de la maladie. Sur le terrain , les investigations sont conduites en collaboration avec les conseillers aquacoles et les laboratoires régionaux, groupes de travail qui déterminent le niveau d'infestation ainsi que l'évolution de cette épidémiologie en fonction de la période de l'année. Les résultats de ces recherches permettent de mettre en évidence les degrés de validation des protocoles proposés et de les rectifier si besoin est. Les recherches amont sont développées à l' IFREMER et à l'UBO. Le laboratoire de Génétique et Pathologie de La Tremblade met au point des traitements... |
| Tipo: Text |
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| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00422/53379/54222.pdf |
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| Flassch, Jean-pierre; L'Herroux, Michel; Laubier, Lucien; Aveline, C.. |
| The breeding of bivalve larvae has up t o now always been conducted in closed systems. This method requires great care and consequently much labor. Using running water systems, we intended to exclude handling and avoid infestations and diseases without the use of antibiotics . Primarily, we used two cylindrical 20 m3 tanks, both with a filtering sand bottom and air-lift system. The flow was about 400 liters/hr. The temperature was 20 C. One tank was used as the filter, the second as our breeding unit in which circulation was maintained by adapted aeration. Newly released larvae of Ostrea edulis were introduced at four times. Larvae were fed daily at a rate of from 10 Isochrysis galbana, 10 Monochrysis lutheri and 2 Tetraselmis suecica per microliter to 25... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-5079.pdf |
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| Cochard, Jean-claude; Flassch, Jean-pierre. |
| Due to the lack of regulation allowing commercial exploitation of abalone (Haliotis tuberculata), French research was directed towards a half extensive aquaculture starting from hatchery juveniles and using the natural production of macrophyte algue of rocky intertidal areas. Spat is produced in the Argenton hatchery (Western Brittany) with an original high density technique (4 000 juveniles of 8 months/m2). About 55 000 juveniles are produced each year and immersed in habitats of 3 types. |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/1979/publication-6043.pdf |
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| Barret, Jean; Flassch, Jean-pierre. |
| L'élevage de la Palourde Ruditapes phillipinarum, entre dans sa phase de développement; données d'élevage, méthodes de protection, lutte contre les prédateurs ... sont maintenant bien connues. Pour des raisons économiques, certains vénériculteurs assurent eux-même le prégrossissement du naissain, c'est-à-dire le passage d'une taille correspondant à la sortie des écloseries : T.2 - trié sur un tamis de 2 mm d'où l'appellation tamis de 2 : T.2 - à une taille compatible avec un semis. Ces éleveurs prennent différentes options: certains préfèrent prégrossir le naissain en début d'année, d'autres en fin d'année, le semis étant effectué lorsque le naissain a atteint une taille acceptable, selon l'appréciation de l'éleveur. Ces méthodes opportunistes, ne... |
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| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/00109/22001/19616.pdf |
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| Flassch, Jean-pierre. |
| Featuring innovation could be simpleness in the field application, allowing to account in the best of natural conditions. The new technologies increasing production are usually subordinate to climatic, geogaphic and mainly socio-economic conditions wre they are used, therefore they cannot be always directly tranferred to other countries. Another fact could be pointed out : in high productivity areas the innovations are quite unusual ; the influrence of farmers and the routine practices generally restrict the propagation of new ideas and their application ; on the other hand in the new countries or with a starting prodcution the new techniques get the best chances to be transferred. These last fifteen y the use of synthetic stuff has been one of the... |
| Tipo: Text |
Palavras-chave: Aquaculture; Bivalves; Pregrowing techniques; Growthing techniques. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/00015/12633/9522.pdf |
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| Flassch, Jean-pierre. |
| Innovations in the nursery culture and maturation of bivalves are being worked on at aIl levels of research and production, but transfer to the development stage must be effected differently in each case. Over the past twenty years, there have been a great many innovations in bivalve rearing, most of which may be described in terms of rearing conditions: higher and lower densities; confined or open environemnt; overflow; upwelling; floating, suspended, raised or ground systems, etc. The quality of an innovation is characterized by its influence on the efficient operation of the specific culture program and by how easily it may be transferred. |
| Tipo: Text |
Palavras-chave: Maturation; Bivalves; Molluscs; Innovations; Grossissement; Prégrossissement; Bivalves; Mollusques; Innovations. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-6225.PDF |
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| Flassch, Jean-pierre; Leborgne, Yves. |
| The Pacific Mani la clam (Tapes philippinamm) was introduccd in France be tween 1972 and 1975 by the SATMAR Corporation , and in England through the Conwy Laboratory in 1980. Initially. spat were introduced and later adults, both from the west coast of North America (Puget Sound area). Aquaculture production in France started from adults. Until 1975, experiments with the spat were conducted at half-industrial scale and research activities and plans to transfer the knowledge were set up. The breeding began at first on the French Atlantic coast in intertidal areas and at the same time in oyster ponds. Characteristics of the new cu lture are presented in th is paper. The diseases met wilh in larval production and growout are also discussed . Nalural... |
| Tipo: Text |
Palavras-chave: Clam culture; Environmental impact; Introduced species; Tapes philippinarum. |
| Ano: 1994 |
URL: http://archimer.ifremer.fr/doc/00037/14871/12197.pdf |
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| Flassch, Jean-pierre. |
| Introduction: Through the combined works of research, local communities and professionals, a new activity has been created, "vénériculture", i.e. clam farming. Thanks to the knowledge acquired in research as well as production in the shellfish field, clam production results followed shortly thereafter. Rightly so, only 10 years have elapsed since the beginning of the research and the actual production phase (500 t) involving about 300 professionals. Research conducted by IFREMER positively contributes to the creation of new trades as well as diversity within existing professions. Clams are marketed nationally as well as exported. French producers are truly competent, but the prospect of open borders and increasing competition requires maintaining a high... |
| Tipo: Text |
Palavras-chave: Company; France; Production; Pathology; Aquaculture; Biology; Clam. |
| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/1988/rapport-1757.pdf |
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| Flassch, Jean-pierre; Barret, Jean; Mazurie, Joseph; Maes, P; Nicolas, J; Noel, Thierry; Paillard, C; Lepennec, M. |
| A national program started in 1989 to drive researches on Ruditapes philippinarum brown ring disease correlated with a vibrio called P1. The researches have concerned epidemiological surveys on spats and adults, treatment methods, diagnostic techniques, and anatomical and functional studies about the vibrio-clam relations. The transmissions of the disease appeared mainly related to contaminated manila clam seeds, with secondary horizontal propagation. The brown ring formation appeared to be caused by a periostracum deterioration. Taking into account some of these results, an adapted cultural technique including special care of seeds and decreased densities was proposed to the farmers. |
| Tipo: Text |
Palavras-chave: ANE; France; Brittany Ruditapes philippinarum Bivalvia Marine molluscs Vibriosis Research programmes Adults Spat Diseases Clam culture Rearing. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-925.pdf |
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| Flassch, Jean-pierre; Woitellier, Etienne. |
| This work tests the action of microalgae at different concentrations on the postlarval growth rate of the abalone Ealiotis tuberaulata from the creeping stage to 60 days,. depending with different kinds of water during the breeding (running water, closed, system, still water). The growth's curves are ajusted with an exponential function. These data were adapted to an experimental hatchery with a view to a big scale production. |
| Tipo: Text |
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| Ano: 1977 |
URL: http://archimer.ifremer.fr/doc/00305/41600/40809.pdf |
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| Flassch, Jean-pierre; Normant, Y.. |
| The start of the mollusc, crustacean and fish artificial production programs required the creation of a room producing 300 litres of algal culture daily over 6 days, but able to reach 400 litres 3 days a week. The cultures are monospecific; 98 % of the produced algae are Prasinophyceae, Tetraselmis suecica Butcher (Parke and Dixon, 1964), a green flagellate alga measuring eight to ten [ ?] at its longest length. |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-5979.pdf |
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| Flassch, Jean-pierre; Aveline, Charles. |
| Les travaux commencés en 1973 avec la collaboration de Y. Koike sur la production artificielle d'Haliotis tuberculata devaient définir les aspects scientifiques et technologiques liés à l'obtention de juvéniles d'un an, non pas dans un but de repeuplement comme dans le contexte japonais, mais de promotion d'un élevage contrôlé en milieu naturel dans la zone de battement de marées. La volonté d'un contrôle systématique des élevages, d'une part, et l'utilisation éventuelle d'algues macrophytes, d'autre part, grâce aux immenses possibilités de production naturelle d'algues macrophytes dans la zone de battement des marées ont été les deux moteurs de l'orientation suivie dans le cadre de ce programme ormeaux. Les résultats obtenus depuis 1973 en laboratoire au... |
| Tipo: Text |
Palavras-chave: Ecloserie; Elevage; Production; Installation; Techniques; Fécondation artificielle; Haliotis tuberculata. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/00134/24522/22551.pdf |
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| Flassch, Jean-pierre; Koike, Y.; L'Herroux, Michel; Aveline, C.. |
| Ce problème pouvait être abordé de deux façons différentes; il était en effet possible soit de s'orienter vers les technIques Japonaises (expérimentations en semi-intensif avec utilisation de grands volumes supérieurs au m3 , procédés donnant des résultats Immédiats mais à reproductivité incertaine, emploi d'une main-d'oeuvre nombreuse et peu spécialisée), soit d'adopter pour le système clos à forte production contrôlée (mis en oeuvre assez longue, investissement immédiat plus important, utilisation en série de petits volumes à forte concentration, nourriture naturelle produite artificiellement et donnée en quantité connue, main-d'oeuvre peu abondante mais très spécialisée) . Pour une meilleure connaissance des problèmes et pour une adaptation future plus... |
| Tipo: Text |
Palavras-chave: Reproduction artificielle; Naissain; Larves; Molluques; Ostrea edulis; Haliotis tuberculata; Artificial production; Larvae; Mollusca; Ostrea edulis; Haliotis tuberculata. |
| Ano: 1974 |
URL: http://archimer.ifremer.fr/doc/00021/13250/10292.pdf |
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| Flassch, Jean-pierre. |
| L'élevage d'algues marines et de postlarves dépend de la chaîne alimentaire qui inclue toutes les tailles nécessaires d'algue et de proies. Une telle unité fonctionne depuis 1973 au COB à Brest et est à la base de toute recherche expérimentale sur les mollusques, les crustacés et les poissons marins. Dans cet article, la technique de production d'algues unicellulaires en culture semi-continue (20l) aussi bien qu'en unité de production de 60 l est décrite. Une nouvelle technique simplifiée d'introduction des sels minéraux et des vitamines a été étudiée dans un système semi-continu. L'unité de production de masse testée pendant ces trois années a donné toute satisfaction et est décrite ici en détail. |
| Tipo: Text |
Palavras-chave: Algues marines; Elevage; Technique de production. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/00019/13021/9998.pdf |
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| Flassch, Jean-pierre; Aveline, C. |
| The experimental hatchery of Argenton (Brittany, France), is described in details. The rearing techniques corresponding to each stage of Haliotis tuberculata are discribed: tanks without collectors, 20-day controlled production of algae, then artificial feeding until the third month and normal rearing with chopped natural red algae. The evolution of growth, mortality and juvenile production per tank are detailed per year. [NOT CONTROLLED OCR] |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1984 |
URL: http://archimer.ifremer.fr/doc/1984/rapport-4950.PDF |
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| Aveline, C.; Flassch, Jean-pierre; Koike, Y.. |
| This issue could be tackled from two different point of views: It was indeed possible to turn towards the Japanese techniques (semi-intensive experiments using large volumes superior to one cubic metre, providing immediate results but hardly repeatable, with a need for a large and non-specialized manpower), or to go for the enclosed system with a high controlled production (long implementation, heavier immediate investment, use ,in series, of small volumes with high concentrations, artificially produced natural food provided in known quantities, lower manpower needs but highly specialized). For a better knowledge of the issues raised and an easier future adaptation to the European socio-economic context, considering the knowledge brought by the Anglo-Saxon... |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/publication-5980.pdf |
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| Registros recuperados: 24 | |
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