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| Marin, Jean. |
| The Belon oyster farming centre, despite its economic interest, has, up to now, only been the subject of periodic investigation. In 1923, HINARD took on the study of oyster farm beds in order to compare them with those of another well-known area, Marennes. Later, within the framework of oyster larvae research, VOISIN (1932), TACLET (1935) and HERMAN (1935 to 1938) engaged in a few observations there on temperatures and densities during the months of June and July, the flat oyster's breeding period. In 1946-1947, in brief, MARTEIL started a comparative study of the Aven and the Belon, the results of which were not published. The recurrence of the phenomena of summer mortality rates, since 1961, made it necessary to acquire more knowledge of the estuary. Our... |
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| Ano: 1971 |
URL: http://archimer.ifremer.fr/doc/1971/publication-2375.pdf |
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| Marin, Jean. |
| The european red spiny lobster, Palinurus elephas, is the main target species of the small-scale fishery in Corsica. The fishery is described fleet, fishing areas, fishing strategy and fishing gear ; fishing effort, yield, c.p.u.e, and complementary.catches ; resource condition. Its specific problem, the economic overfishing, is analysed. Finally, it has been tried to assess the fishing regulation impact (minimum market size, fishing seasonal close, fishing sanctuaries). |
| Tipo: Text |
Palavras-chave: Small scale fishery; Corsica; Spiny lobster; Fishery; Petit métier; Corse; Langouste; Pecherie. |
| Ano: 1988 |
URL: http://archimer.ifremer.fr/doc/1988/rapport-1538.pdf |
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| Marin, Jean. |
| Growth rate, condition and mortalities in groups of oysters in oyster-beds in the Belon River were studied during 1968 and 1969. The growth rate up to the beginning of the summer was higher in 1969 than in 1968. Variations in the condition of the oysters during the 2 summers were related to the state of development of the reproductive organs and this sexual development was earlier in 1969 than in 1968 because of a sudden rapid rise in temp. Whereas relatively mortalities occurred during 1968, many oyster beds in the River Belon were decimated during 1969. The phenomenon responsible for these mortalities apparently occurred at a particularly critical time; when the oysters were growing rapidly and when most of them were at an advanced stage in the sexual... |
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| Ano: 1971 |
URL: http://archimer.ifremer.fr/doc/1971/publication-2377.pdf |
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| Blancheton, Jean-paul; Fuchs, Jacques; Lacroix, Denis; Lacroix, Nicole; Lemercier, Philippe; Marin, Jean; Antoine, Loic. |
| L'accélération des changements dans tous les domaines, qu'il s'agisse d'environnement, de technologies ou de la vie des sociétés humaines, est une donnée majeure de notre temps. Jusqu'au XIXe siècle, les hommes gardaient une relative maîtrise des révolutions, qu'elles soient techniques (la vapeur, l'électricité, l'atome, ... ) ou sociales (la démocratie, le communisme, etc). A la fin du XXe siècle, la complexité des sociétés humaines, le foisonnement des découvertes scientifiques rapidement exploitées par l'industrie à des fins économiques et l'interdépendance croissante de toutes les activités dans des écosystèmes fragilisés ont conduit les communautés humaines à davantage subir les révolutions: mondialisation d'une économie de plus en plus immatérielle,... |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00304/41528/40736.pdf |
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| Marin, Jean. |
| Deux modèles de croissance de P. elephas ont été utilisés : modèle linéaire de Kurata (1962) pour la croissance relative, et modèle de Van Bertalanffy pour la croissance absolue. La fréquence de mue et la durée de l'intermue ont été déterminées en combinant la relation taille-age de Von Bertalanffy et l'équation de croissance à la mue de Kurata. Une analyse crtitique de l'adéquation du modèle de Von Bertalanffy est proposée. |
| Tipo: Text |
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| Ano: 1985 |
URL: https://archimer.ifremer.fr/doc/00500/61165/64633.pdf |
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| Longere, Paul; Dorel, Didier; Marin, Jean. |
| 2 ponds (or lagoon) were studied in order to establish the economic possibilities of their exploitation for oysters. Bathymetric and sediment maps were produced using methods described. They indicate a morphological similarity between the ponds, with a superficial broken bed and a regular, flat or gently sloping bed beyond 7 m, the general form reflecting the aerial relief of the adjacent `coast'. The deeper regions had mud or clay sediment, while the edges of the ponds were covered with sand. In more detailed studies it was evident that the banks of Diane were more regular and steep than those of Urbino, and that only in the latter was there a good relationship between the depth of water and the carbon/nitrogen ratio. Differences are thought to relate to... |
| Tipo: Text |
Palavras-chave: Corsica; Studies; Exploitation; Oysters; Sedimentologic; Bathymetric. |
| Ano: 1972 |
URL: http://archimer.ifremer.fr/doc/1972/publication-2068.pdf |
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