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Recherches sur une maladie epizootique de l'huitre plate Ostrea edulis Linne ArchiMer
Bonami, Jean-robert; Grizel, Henri; Vago, Constantin; Dutholt, Jean-louis.
Digestive glands of Ostrea edulis affected by an epizootic have been examined by light- and electron- microscopy. Round, compact lesions in the digestive gland cells contain refractive elements staining slightly blue or red with Geimsa. Ultra-structurally, each lesion contains (a) dense cytoplasma, without mitochondria and with paracrystal-line inclusions, (b) enclosed regions with vacuolar cytoplasm, no mitochondria and two types of formation; one is opaque, the other a vacuole containing ribosomes, lamellar structures and peripheral ovoid particles. The nature and significance of these structures is not known.
Tipo: Text Palavras-chave: Histology; Epizooty; Ostrea edulis.
Ano: 1971 URL: http://archimer.ifremer.fr/doc/1971/publication-2238.pdf
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Effet des conditions environnementales sur le développement des pathologies à Vibrio dans les élevages de crevettes en Nouvelle-Calédonie ArchiMer
Lemonnier, Hugues.
Shrimp aquaculture in New Caledonia is a developing industry, exclusively based on the species Litopenaeus stylirostris. However, it is subject to mortalities during grow out as observed all over the world. Since 1993, shrimp reared during the cold period are affected by a disease named "syndrome 93". As a consequence, the whole industry has become seasonal and produces essentially during the warm season. The climatic conditions during the periods of transition between the two main seasons could be responsible for an environmental stress and the origin reason for mortality outbreaks. Stocking density is the main risk factor. It increases the probability of the appearance and development of the epizooty in the pond. The "Summer Syndrome", a septicemic...
Tipo: Text Palavras-chave: New Caledonia; Risk factors; Environmental stress; Vibriosis; Epizooty; Pond management; Eutrophication; Pond health; Shrimp; Litopenaeus stylirostris; Peneids; Aquaculture; Nouvelle Calédonie; Facteur de risque; Stress environnemental; Vibrioses; Pratiques d'élevage; Eutrophisation; Santé de l'écosystème bassin; Crevette; Litopenaeus stylirostris; Pénéides; Aquacultre.
Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2643.pdf
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