448 resultados para Mystère des bergers


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As explained in the title, this campaign aimed to assess the diurnal vertical variations in abundance of demersal species off the Côte d'Ivoire

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The fishing in 1982 has been oriented towards Sardinella aurita stock, which becomes the target species with 11.200 tons over 21.300 tons, taking the place of Sardinella maderensis, which reaches only 4,800 tons. The high abundance of this species explains the decrease of fishing effort.

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This publication gives the results of the bottom trawlings made during the cruises Togo 3 and logo 4 by the oceanographic research vessel "Andre NIZERY" on the continental shelf of Togo during the estimation program of halieutic resources. The report includes: 1 - The report of the cruises Togo 3 and Togo 4 2 - Some information on the presentation of the results 3 - The trawl recording cards for the 2 cruises 4 - The length frequency distributions of the measured samples.

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This publication gives fishery statistics relating to the landings of the Ivorian trawlers in Abidjan in 1983. The data used are the inquiries made by the C.R.O. on the boats and the auction sheets of the fishing harbour. The data processing was executed on the C.R.O. computer.

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This data report contains all the meteorological, hydrological and dynamic data gathered during the VASPI cruises (I : from December 8th to December 13th 1982, II : from March 5th to March 9th 1983, and III : from October 6th to October 10th 1983) carried out along the continental shelf of Ivory Coast by the oceanographic ship "Andre NIZERY". These cruises, which represent a part of a coastal programme, are included in the more general scientific program FOCAL, whose main scientific objective is the study of the thermal context of the intertropical atlantic area.

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The aim of this campaign was the trawl exploration of the Ivoirian continental shelf at the depth of 10 to 120 metres.

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This publication is an up-to-date review of the papers published by the researchers of the Oceanographic Research Center of Abidjan, since its beginnings (1958-1978).

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In the line of the Chalci campaigns 78-01 and 78-02, the aim of this campaign too was the trawl exploration of the Ivoirian continental shelf at the depth of 10 to 120 metres.

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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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One additional Chalci campaign that, in line with the previous Chalci campaigns 78-01, 78-02, and 79/01, has as its major objective the trawl exploration of the Ivoirian continental shelf at the depth of 10 to 120 metres.

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This publication gives the results of the bottom trawlings made during the cruise TOGO 7 by the oceanographic research vessel Andre Nizery on the continental shelf of Togo during the estimation program of halieutic resources.

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This publication gives fishery statistics relating to the landings of the ivorian trawlers in Abidjan in 1982. The data used are the inquiries made by the C.R.O. on the boats and the auction sheets of the fishing harbour. The data processing was executed on the C.R.O. computer.

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This publication shows the statistics of the sardinella fleet in 1981. These statistics are the catches and the effort by sector every two weeks. These data come also by month. At the end, ara listed the prices of the fresh fish in boxes at the criee. 1981 has been better than 1980, mainly for Sardinella aurita.