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Registros recuperados: 235 | |
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Vladymyrov, V.. |
This review presents a brief analysis and sources (including URLs for the Internet sources) of the most interesting and informative Black Sea oceanographic data sets (excluding satellite data) that are now available for the scientific community with the main attention on the long term data sets. The results of the analysis show that a number of the available Black Sea datasets is growing permanently. However, this process is still rather slow and insufficient. One can hope that new international projects that cover the Black Sea region will drastically improve the situation in nearest years. The attempts should be made as well to create the united reliable quality checked data time series especially for biological data for which long time series do not... |
Tipo: Proceedings Paper |
Palavras-chave: Black Sea; Data; Database; Climate change; Internet. |
Ano: 2008 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/697 |
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Tokarev, Yu.; Mel'nikov, V.; Burmistrova, N.; Belokopytov, V.; Temnykh, A.. |
Researches in the bioluminescence field vertical structure, amplitude characteristics and spatial distribution in the Black Sea have been conducted in IBSS, NAS of Ukraine, from up to the present time. Enough evidencies are available to testify dramatic changes in different Black sea ecosystem components including bioluminescence field parameters, which took place last decades. But still there is no direct answer to the question about the reasons for such transformations, as variability of the Black Sea biophysical (bioluminescence) and biological characteristics at the climatic time scales, i.e. at the scale of decade periods are not sufficiently studied now. The most pronounced changes in vertical structure of the bioluminescence field are observed in... |
Tipo: Proceedings Paper |
Palavras-chave: Climate changeability; Cold intermediate layer; Bioluminescence; Plankton. |
Ano: 2008 |
URL: http://repository.ibss.org.ua/dspace/handle/99011/694 |
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Okemwa, E.; Wakwabi, E.; Getabu, A.. |
Topics on Lake Victoria limnology, benthic fauna, stock assessment, catch assessment survey, gear selectivity, fisheries ecology, fish parasites and marketing economics are covered. Management and conservation of the lake's fisheries and other aquatic resources are discussed. Dialogue between fishermen, scientists and administrators is stressed, measures to be undertaken are addressed and further research is recommended. |
Tipo: Proceedings Paper |
Palavras-chave: Fishery management; Freshwater fish; Inland fisheries; Lake fisheries; Limnology; Resource management; Stock assessment; Zoobenthos; Fishery management; Lake fisheries; Limnology; Stock assessment; Inland fisheries; Resource management; Zoobenthos; Http://aims.fao.org/aos/agrovoc/c_24026; Http://aims.fao.org/aos/agrovoc/c_4159; Http://aims.fao.org/aos/agrovoc/c_4343; Http://aims.fao.org/aos/agrovoc/c_24251; Http://aims.fao.org/aos/agrovoc/c_3873; Http://aims.fao.org/aos/agrovoc/c_6524; Http://aims.fao.org/aos/agrovoc/c_15487. |
Ano: 1994 |
URL: http://hdl.handle.net/1834/2125 |
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Kouzan, K.. |
Les Etats Africains connaissent aujourd'hui des difficultés dans la gestion (les équipements hérités de la colonisation. En effet, en même temps qu'elles mettaient en place les diverses institutions et structures administratives lors de leur installation sur le continent africain, les puissances coloniales réalisaient des équipements nécessaires pour leur exploitation, principalement dans les capitales des colonies.L'un des importants travaux réalisés par la France au Togo à partir de 1920 a été l'électification de Lomé, lieu d'implantation des différentes sociétés commerciales et du pouvoir central. |
Tipo: Proceedings Paper |
Palavras-chave: Socioeconomic aspects; Historical account. |
Ano: 1998 |
URL: http://hdl.handle.net/1834/1197 |
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Samb, B.. |
The marine waters off Northwest Africa are very productive because of the active upwelling that takes place at different intensities along the coast and which supports important fish resources (among which the small pelagics are the most abundant). The fishery sector plays an important role in the economies of the different countries of the region. Despite their relatively low commercial value, the pelagic fish are dominating the catches and is important to both the industrial and artisanal sectors. Several assessment studies of these resources have been carried out,and the management recommendations given calls for a control of effort in the mackerel and horsemackerel fisheries, whereas a catch level not to be exceeded has been defined for sardinella. The... |
Tipo: Proceedings Paper |
Palavras-chave: Pelagic fish; Upwelling. |
Ano: 2002 |
URL: http://hdl.handle.net/1834/279 |
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Registros recuperados: 235 | |
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