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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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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'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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