999 resultados para La moindre des choses


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This work summarizes the present knowledge on biology and fisheries of Atlantic tuna such as yellowfin (Thunnus albacares), skipjack (Katsuwonus pelamis) and to a lesser extent, bigeye (Thunnus obesus) and albacore (Thunnus alalunga). Current appraisal of these stocks

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Synopsis of this numerically very important Diptera category, which is dominant and consequently of relevance in most aquatic environments.

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In order to control the proliferation of floating aquatic vegetation in Côte d'Ivoire, a coastal inlet, allowing a direct communication between the Comoe river and the ocean, was created in September 1987. The impact of this operation on the hydrochemistry (salinity, nutrients, algal biomass) and the bacterial contamination level was studied in the area close to the Vridi canal.

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Cumacea were only observed in night plankton of the Côte d'Ivoire continental shelf. However they are not always observed and their occurrence seems to depend on the marine seasons. In September, December and April, the catches were very poor indeed, whereas May and June showed interesting results. Most of the species are rarely seen in the upper layer. Several activity rhythms could be shown for the most common species present in the hauls.

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The authors report on the computer programmes developed in the Oceanographic Research Centre of Abidjan for the collection and treatment of statistical data on the fisheries of the asiatic trawlers in the Atlantic. They provide yield by boat, by fishing sector (5 degrees x 5 degrees) and by 15 days fishing in the Atlantic.

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info:eu-repo/semantics/published

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Etude de la réutilisation des protocoles (c'est-à-dire des premières pages des rouleaux de papyrus, qui portent un «timbre fiscal») dans l'Égypte byzantine et arabe

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info:eu-repo/semantics/published

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Doctorat en Sciences