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| Tanguy, Renan; Le Grel, Laurent. |
| After 12 years of a difficult start, the sea bass (Dicentrarchus labrax) breeding projects are multiplying. Faced with the constraints presented by the sites used in the past, farming at sea seems to offer conditions more conducive to the growth and survival of the animals. The zootechnical data from the farm makes it possible to link the rate of growth and the thermal profile of the site. Risks and uncertainties still weigh heavily on aquafarming projects, but solutions such as insurance are helping to improve their economic feasibility. The economic and financial analysis comes up with good overall profitability of the project, even if the duration of the breeding cycle and the necessity to ensure a progressive increase in operating capacity make the... |
| Tipo: Text |
Palavras-chave: Grossissement; Prégrossissement; Loup; Aquaculture; SEM. |
| Ano: 1989 |
URL: http://archimer.ifremer.fr/doc/1989/rapport-2417.pdf |
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| Buchet, Vincent; Bluteau, A. |
| Whatever the hydraulic gestion, an épuration of the fishes sewages is possible with the integrated system studied. The main action is situed in the intermediary pond with a significant decrease of nutrients, especially ammonia, and particulate mineral matters. The oyster's pond have no significant action on nutrients, but their action is real on chlorophyll which become limiting factor in 20% renewal system. One of the effluent, system 1 (renewal 10%) had high suspended matter and low nutrient concentrations. The other (renewal 20%) was poor in supcnded matters (chlorophyll). The system 2 give best oyster's growth, close to traditional nursery performances, with an highest mortality (32%). In the first system, suspended matter concentrations are too high... |
| Tipo: Text |
Palavras-chave: Valorization; Oyster; Pre ongrowing; Seabass; Integrated rearing; Valorisation; Huître; Prégrossissement; Bar; Elevage intégré. |
| Ano: 1996 |
URL: http://archimer.ifremer.fr/doc/1996/rapport-1917.pdf |
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| Soletchnik, Patrick; Goyard, Emmanuel; Thouard, Emmanuel. |
| Le travail présenté reprend les principales expérimentations menées en structures de petits volumes (40, 120 et 150 l). Elles ont permis de lever un certain nombre de points de blocages au cours de ces 3 années d'études. Les résultats de ces expérimentations menées en réplicats de 3 à 7 bassins par condition étaient immédiatement pris en compte dans les élevages "pilotes" menés parallèlement. Vingt-deux expérimentations ont été réalisées au cours de différentes phase de l'élevage, sur des thèmes aussi divers que la lumière, l'abondance et la qualité des proies, le sevrage précoce, le sevrage, les normes zootechniques eu prégrossissement. Ces résultats sont présentés dans ce 4ème document de la mise au point de l'élevage de l'ombrine subtropicale. |
| Tipo: Text |
Palavras-chave: Aquaculture; Elevage; Ombrine; Sciaenops ocellata; Reproduction; Zootechnie; Prégrossissement. |
| Ano: 1990 |
URL: http://archimer.ifremer.fr/doc/00133/24378/22390.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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| Buestel, Dominique; Guenole, Annie; Mingant, Christian. |
| In 1983, the pre-grow-out in the roadsted of Brest of 1.5m king scallop maximU6 post larvae from 1 to 5 mm lead to the production of 250,000 juveniles of a size comprised between 27 and 31 mm. The culture conditions have been particularly unfavourable in June with an infestation by the drilling worm Polydora sp and the starfish Asteria rubens, and in July when important mortalities and a stopping of the growth have been observed as well as the presence in the plankton of large quantities of dinoflagellates (most certainly toxic). Some experiments showed that the sensitivity of the scallops to those different mortality factors is proportional to the size of the farm. |
| Tipo: Text |
Palavras-chave: Prégrossissement; Elevage; Pecten maximus L.; Coquille Saint Jacques. |
| Ano: 1985 |
URL: http://archimer.ifremer.fr/doc/1985/acte-6539.pdf |
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| Baud, Jean-pierre. |
| Du naissain de palourde japonaise et d'huître creuse a été prégrossi en conditions intensives de nourricerie au moyen d'une eau salée souterraine, utilisée comme ressource thermique et comme source de sels nutritifs pour la production d'algue fourrage. Les paramètres essentiels du milieu ont été suivis et les conditions d'élevage ont été contrôlées (densité de naissain, débit d'eau de mer, concentration de phytoplancton et température). Les résultats biologiques obtenus après traitement des interactions et de la hiérarchie des paramètres étudiés ont fait l'objet d'une analyse économique, pour chaque saison, par rapport à différentes stratégies de prégrossissement des coquillages. Cette étude permet finalement de proposer une méthodologie intensive de... |
| Tipo: Text |
Palavras-chave: Baie de Bourgneuf; Ruditapes philippinarum; Crassostrea gigas; Prégrossissement; Nourricerie; Culture intensive. |
| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/00048/15892/13314.pdf |
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| Buestel, Dominique; Cochard, Jean-claude; Dao, Jean-claude; Gerard, Andre. |
| Artificial production from natural spawners could be a way of getting big quantities of spat of Pecten maximus, ln the method described, larval phase (until a size of 250 microns) occurs in a hatchery, post-Iarval phase (from 250 µ until 3 millimeters) in a nursery, and first growth period directly into the sea (from 2 mm to a size of 25-30 mm), The fifst results obtained, production of several thousand of individuals good enough for reseeding, seem to be transposable to a larger scale. |
| Tipo: Text |
Palavras-chave: Restocking; Intermediate culture; Hatchery; Nursery; Pecten maximus; Repeuplement; Prégrossissement; Ecloserie; Nurserie; Pecten maximus. |
| Ano: 1982 |
URL: http://archimer.ifremer.fr/doc/1982/publication-6529.pdf |
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