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Registros recuperados: 5
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La sensibilité des larves de pectinidés aux conditions d’élevage : le flux ouvert comme alternative aux mortalités massives ArchiMer
Holbach, Marine.
In many countries, aquaculture of pectinids depends on the success of artificial spat production in hatchery. This production is always unpredictable due to the variability of hatching rate and larval survival. Flow-through larval rearing systems were developed in Norway for the King scallop Pecten maximus and showed promising results. Unfortunately the system needs to be optimized since the larval yields and the densities used are still relatively low. In France, a small-scale (5 L) and high-density (≤ 300 larva mL-1) flow-through larval rearing system was successfully developed for oysters. First trials in such system and in similar conditions with P. maximus failed as we registered slower growth and high mortality rate in only a few days. It is known...
Tipo: Text Palavras-chave: Pectinidés; Pecten maximus; Écloserie; Élevage larvaire; Flux ouvert; Contamination bactérienne; Prophylaxie; Physiologie larvaire; Indices de stress.; Pectinids; Pecten maximus; Hatchery; Larval rearing; Flow-through; Bacterial contamination; Prophylaxis; Larval physiology; Stress index.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00259/37000/35491.pdf
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Adsorption sur charbon actif pour une amélioration de la qualité de l’eau en aquaculture – ADAQUA. Application aux écloseries conchylicoles ArchiMer
Stavrakakis, Christophe; Dupuy, Beatrice; Hequet, Valerie.
En ecloserie conchylicole, comme dans le milieu ouvert, une bonne qualite dfeau est indispensable aux differentes etapes des elevages, de la fecondation jusqu'a la fixation du naissain. Or, malgre les traitements mis en place en amont des differents etablissements du polder de Bouin (filtration fine et desinfection par rayonnements Ultra-Violets), la non-atteinte du stade de larves D dans les ecloseries dfhuitres ou le mauvais developpement des larves en elevage ont pu etre constates depuis 2008, parfois de facon simultanee dans plusieurs etablissements. Ceci reflete une deterioration ponctuelle de la qualite de lfeau. Une pollution de type biologique ayant pu etre ecartee, lfinfluence dfune contamination chimique sur ces dereglements est suspectee....
Tipo: Text Palavras-chave: Crassostrea gigas; Élevage larvaire; Contamination chimique; Adsorption sur charbon actif; Capteurs passifs.
Ano: 2017 URL: http://archimer.ifremer.fr/doc/00416/52765/53628.pdf
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Remplacement total des artémia par des microparticules inertes dans l'élevage larvaire de l'ombrine Sciaenops ocellatus en Martinique ArchiMer
Petton, Bruno; Falguiere, Jean-claude.
In most of marine fishes cultured, larvae in their early development are fed with live prey (rotifer and/or artemia). In hatcheries, culture of these preys is labour consuming, needs specific facilities and represent an important part of production cast. On the other hand, world artemia production is subjected to fluctuation of harvest in the wild which could Iimit fish farming industry in the near future. A dried formula adapted to marine fish larvae has been perfected by Ifremer's center of Brest (France) and is distributed by a feeding company since 1999. This artificial microbound diet has been successfully tested on several temperate fishes such as European seabass (Dicentrarchus labrax), Atlantic cod (Gadus morhua) or European seabream (Sparus...
Tipo: Text Palavras-chave: Micro diets; Sciaenops ocellatus; Larval culture; Aquaculture; Microparticules; Sciaenops ocellatus; Élevage larvaire; Aquaculture.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/acte-6597.pdf
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Mortalités massives en élevage larvaire de Lates Calcarifer ( Mise en évidence d'un virus neurotrope ) ArchiMer
Renault, Tristan; Thouard, Emmanuel; Weppe, Maurice.
Since 1986 high mortality of hatchery-reared sea bass, Lates Calcarifer, larvae appeared in Ifremer's Pacifie Oceanological Center (Tahiti). Light and electron microscopy show vacuolation and cells with cytoplasmic inclusion bodies in the brain, the cord and the eye relina of affected larvae. Numerous non-enveloped particles identified as viral units, icosahedral in morphology and measuring about 25 nm in diameter were found in the cytoplasm of the degenerating cells. In affected larvae, these particles were isolated by density grandient centrifugations. In vitro tests on cell lines and in vivo test on fish are performed with samples of diseased larvae. And immunisation of mice are made with purified immunoglobulins of Lates calcarifer.
Tipo: Text Palavras-chave: Aquaculture; Élevage larvaire; Lates calcarifer; Pathologie; Virus; Spongiose; Aquaculture; Hatchery; Lates calcarifer; Pathology; Virus; Spongiosis.
Ano: 1992 URL: http://archimer.ifremer.fr/doc/00142/25306/23378.pdf
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Evaluation de l'effet de l'environnement et de l'alimentation sur l'apparition d'anomalies de développement chez l'alevin de bar (Dicentrarchus labrax) ArchiMer
Menu, Bruno; Robin, Jh; Gouillou-coustans, Marie-francoise.
Larvae from a natural spawn of sea bass were distributed into 3 larval rearing lines in 2 distant sites, after simulated or true transportation. The specific rearing methods in the specific rearing environment of each laboratory were used :starvation under darkness for 160 degrees days and first feeding on Artemia (PP) in the Mediterranean laboratory of Palavas;first feeding on rotifers at 75 degrees days in the laboratory of Brest (Brittany) in 250 liters (BB) tanks or 35 liters tanks (Bb) of a separate rearing line. In the 250 liters tanks in Brest, 2 additional treatments before first feeding on Artemia were tested :starvation up to 160 degrees days under darkness with no bubbling (BP);starvation up to 160 degrees days under continuous illumination with...
Tipo: Text Palavras-chave: Pisciculture; Élevage larvaire; Malformations; Effets de l'environnement; Alimentation; Fish culture; Larval rearing; Abnormalities; Environmental effects; Diet.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00272/38284/36472.pdf
Registros recuperados: 5
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