|
|
|
| Registros recuperados: 77 | |
|
|
| Comps, Michel; Raimbault, René. |
| Après la mise en évidence d'infections rickettsiennes chez quelques espèces de mollusques bivalves marins, Mercenaria mercenaria, Mya arenaria (Harshbarger et coll., 1977), Tellina tenuis (Buchanan, 1977), puis Crassostrea gigas (Comps et Coll., 1977), et Ostrea edulis (Comps et coll., 1977), un nouveau cas a été récemment observé chez Donax trunculus, petit coquillage abondant en certains points du rivage languedocien. |
| Tipo: Text |
|
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/1978/publication-7143.pdf |
| |
|
|
| Grizel, Henri; Comps, Michel; Bonami, Jean-robert; Cousserans, F.; Duthoit, Jean-louis; Le Pennec, Marie-annick. |
| Numerous diseases have been described in Ostrea and Crassostrea oysters and especially in cultivated species of commercial interest. The lack of growth, but more often mortalities, are in most cases the most obvious symptoms of this supposed sickness. The consequences of these epizooties can be so bad that they can result in the disappearance of an entire oyster population from a determined area as for Ostrea edulis L. in 1920-1921 (Dollfus, 1922) on some coasts of Europe and for Crassostrea angulata LMK in 1970-1971 on the French Atlantic coast and especially in the Marennes-Oléron and Arcachon basins. These cases can be considered as extreme cases as most of the time, oysters are only subjected to a number of episodic affections, affecting the farms only... |
| Tipo: Text |
Palavras-chave: Glande digestive; Maladie; Pathologie; Ostrea edulis; Huître. |
| Ano: 1974 |
URL: http://archimer.ifremer.fr/doc/1974/publication-6286.PDF |
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
| |
|
|
| Comps, Michel. |
| In the autumn of 1966, visible lesions were reported on the gills of Portuguese oysters raised in the Marennes-Oléron basin. Subsequently, various observers noted the presence of identical lesions on the oysters of Arcachon and the coasts of Brittany. A new oyster disease then appeared and with such an intensity that during the year 1967 the losses affected a large proportion of farmers' production. The disease's symptoms are visible, when first observed, on the gills and palpi. The gills show V-shaped indentations, rather deep and rather numerous, that give them a serrated look. Ultimately, the branchial layers can be quite distorted; all that is left then are very short fragments that have the appearance of stumps. These symptoms have been described in... |
| Tipo: Text |
|
| Ano: 1969 |
URL: http://archimer.ifremer.fr/doc/1969/publication-3159.pdf |
| |
|
| |
|
|
| Comps, Michel; Joly, Jean-pierre. |
| Observées dès 1969 dans le bassin de Marennes-Oléron (Comps, 1970), les différentes phases du cycle de Marteilia refringens, parasite de la glande digestive de l'huître plate Ostrea edulis, ont été confirmées ultérieurement par une étude en microscopie électronique (Grizel, Comps, Bonami, Cousserans, Duthoit, et Le Pennec, 1974). Toutefois, la contamination expérimentale de sujets sains n'ayant pu être menée à bien, des doutes subsistaient quant à la possibilité pour le parasite de réaliser son cycle intégralement chez l'huître (Grizel et Coll., 1974), l'hypothèse d'un hôte intermédiaire ayant même été envisagée (Balouet, Chastel, Cahour et Poder, 1979). |
| Tipo: Text |
|
| Ano: 1980 |
URL: http://archimer.ifremer.fr/doc/1980/publication-7170.pdf |
| |
|
| |
|
| |
|
|
| Comps, Michel; Gras, Paul. |
| A year after the end of the Gill disease which heavily struck the Portuguese oysters Cassostrea angulata Lmk. (Marteil, 1968), a new disease whose causes are still unexplained caused a massive mortality in the same species in the summer of 1970 (Comps, 1972). It can be considered, in 1973, that the successive losses lead to the quasi-extinction of the species C. angulata in the farms of the Marennes basin, since, contrary to what has been done in the case of the Malpèque disease in Canada, the indigenous specious was replaced by another species, the Pacific oyster Crassostrea gigas Thunberg. |
| Tipo: Text |
Palavras-chave: Marennes Oléron; Huîtres; Mortalité; Crassostrea angulata. |
| Ano: 1973 |
URL: http://archimer.ifremer.fr/doc/1973/acte-5927.PDF |
| |
|
| |
|
|
| Comps, Michel; Bonami, Jean-robert; Vago, C.; Razet, Daniel. |
| Among the major epizootics known in marine Molluscs, the one that started on the coasts of Europe in 1970 in the Portuguese oyster, Crassostrea angulata, was certainly one of the largest due to its range and due to the economic loss sustained by the French oyster farming as a whole. It led to the disappearance of the species C. angulata as a farmed oyster, and to the massive introduction of the Japanese oyster, C. gigas, known to be resistant to the disease. From the first manifestations of this epizootic, the laboratories of the ISTPM were actively dedicated to its etiology. Now, after several years, a study begun at the La Tremblade laboratory has just been completed. |
| Tipo: Text |
Palavras-chave: Marennes Oléron; Mortalités; Histologie; Epizootie; Crassostrea angulata. |
| Ano: 1976 |
URL: http://archimer.ifremer.fr/doc/1976/publication-2995.pdf |
| |
|
| |
|
| |
|
|
| Cousserans, François; Bonami, Jean-robert; Comps, Michel; Grizel, Henri. |
| Cell cultures, which are the basis of numerous recent studies in medical pathology, have been, for a few years, of great interest in the studies carried out on the diseases affecting invertebrates. However, such cultures, dealing with marine bivalve molluscs, obtained for the first time by Vago and Chastang (1) and progressively improved since then [(2) to (10)], have not been used in pathological studies yet. As the diseases affecting marine molluscs of economic importance such as oysters are both of great interest and facing specific study difficulties, we tried to adapt oyster cell cultures to the study of the presence, development and cycles of the pathogenic or possibly pathogenic microorganisms affecting Crassostrea, and especially the species gigas,... |
| Tipo: Text |
Palavras-chave: Culture cellule; Parasite; Huîtres; Crassostrea gigas. |
| Ano: 1974 |
URL: http://archimer.ifremer.fr/doc/1974/publication-5907.PDF |
| |
|
| |
| Registros recuperados: 77 | |
|
|
|
