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| Gilles, S. |
| The study was carried out at two sites, the island of Carabane, near the ocean, and the village of Djivent, 60 km by water-way from the mouth of the Casamance River. On the first site, the rise of water temperature commands the spat fall from March to October with a maximum peak in July. Because of a heavy biological competition, oysters can only survive within the intertidal zone. On the second site from August to November, which corresponds with the end of the rainy season, the decrease of salinity induces spawning and settlement of young oysters. Because of the heavy salinity variations there is a weak biological competition and young oyster can easily survive in permanent immersion as within the intertidal zone. On both sites, the growth is linear but... |
| Tipo: Text |
Palavras-chave: ASE; Senegal; Casamance Crassostrea gasar Bivalvia Seed collection Spat Growth Oyster culture. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/1992/acte-919.pdf |
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| Duguy, R.. |
| About 20 spp of marine mammals are actually known for the fauna of the north- west African coast (Rio de Oro, Mauritanie, Senegal). This large number of spp seems to be related to cold water areas connected with the 'upwelling' effect. New data, recently collected, mainly during the summer cruise (1973) of the 'Thalassa', supply new information about the distribution of some spp. Souza teuszil shows a northern limit of its range at {approx} 20 {degree}N (Banc d'Arguin) and Stenella longirostris at {approx} 16{degree}15 N. The common porpoise (Phocoena phocoena) seems to be more frequent in Mauritanian waters than in Morrocan ones, and Orcinus orca is commonly observed between Cap Blanc and Cap Timiris. In July and Sept newborn pups of the monk seal... |
| Tipo: Text |
Palavras-chave: ASE; Senegal ASE; Mauritania ASE; Western Sahara Pinnipedia Cetacea Organism morphology Ecology Taxonomy Aquatic mammals. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-2022.pdf |
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| Lagardere, Françoise. |
| The study of the feeding behavior of D.cuneata (Moreau)(Soleidae, Pleuronectiformes), and the structure of the alimentary tract, show that this sp is a predator of benthic invertebrates or invertebrate fragments wrecked. According to the increasing depth and the progressive decrease of water movements, its food preference is fragments of adult Bivalvia, Polychaeta and Amphipoda. In this work, the feeding behavior is studied in relation to age, sex and state of sexual maturity. 3 patterns of seasonal bathymetric movements are proposed. (1) Anadromous trophic migration which takes place during sprig with movements towards the coast due to the warming of the waters. (2) Catadromous genetic migration, concerning in summer adults only. (3) In winter, the whole... |
| Tipo: Text |
Palavras-chave: ASE; Biscay Bay Dicologoglossa cuneata Reproductive behavior Predation Growth Feeding migrations Feeding behaviour. |
| Ano: 1975 |
URL: http://archimer.ifremer.fr/doc/1975/publication-2008.pdf |
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| Quero, Jean-claude. |
| the author describes the juvenile stages of the P.cyanocephala Krefft, 1967. He shows that they differ from the other juvenile searsiids of the North-Eastern and Middle-Eastern Atlantic mainly by the yellowish-white pigmentation sp otter with very dark-coloured dots visible only on the encephalon of the youngest specimens (24 mm) and then over the whole body of the bigger ones (33 mm). Moreover the observations made on the light-organs development of the P.cyanocephala confirm those made on all the spp of this fam in possession of such organs. During growth, the light-organs of juvenile stages either lose their importance while changing orientation or they disappear, while a light-organ of different orientation appears in their place. |
| Tipo: Text |
Palavras-chave: ASE; Africa Searsia koefoeci Normichthys operosus Paraholthyrnia cyanocephala Photosynthetic pigments Juveniles. |
| Ano: 1974 |
URL: http://archimer.ifremer.fr/doc/1974/publication-2038.pdf |
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