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| Registros recuperados: 235 | |
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| Poisson, F.; Taquet, M.. |
| Besides the difficulties in gathering sufficiently reliable fisheries data for stock assessment, the problems of determining stock structure, the spatial distribution, the mixing zones remains the important factors to realize a stock assessment project. In parallel with other techniques like biological, chemical, parasitical tags (otolith, DNA and parasite), the tag could contribute towards providing a better knowledge on the migration pattern of swordfish betwe en the Indian Ocean towards the Atlantic (South Africa) or the Pacific (Australia). Within a particular stock, the knowledge of the individual behavior in a smaller area could help to model the spatial distribution following the size and/or the sex that ca n be indispensable for VPA Analysis.... |
| Tipo: Proceedings Paper |
Palavras-chave: Tagging Tuna fisheries Stock assessment Xiphias gladius ISW; Indian Ocean. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/70 |
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| Njiru, M.; Ojuok, J.E; Getabu, A.; Muchiri, M.S.; Cowx, I.G; Okeyo Owuor, J.B.. |
| Nile tilapia, Oreochromis niloticus together with other tilapiines of Oreochromis leucosticus, Tilapia zillii and Sarotherodon melanopleudra (=T. rendalii) were introduced into Lake Victoria (Kenya) between 1951 and 1962 to boost the then declining fishery. Only O. niloticus was able to establish leading further to reduction in endemic tilapiines of Oreochromis variabilis and Oreochromis esculentus. O. niloticus currently forms the third commercially important species after introduced Nile perch, Lates niloticus and a native cyprinid Rastrineobola argentea, whereas other tilapias are extinct or are occasionally caught in the lake. Information was collected from by bottom trawling and from published literature to ascertain possible factors leading to... |
| Tipo: Proceedings Paper |
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| Ano: 2006 |
URL: http://hdl.handle.net/1834/2761 |
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| Fraga, I.; Reyes, R.; Ortega, N.; Regueira, E.; Font, R.; Bravo, A.. |
| In order to establish the management methods in snook Centropomus undecimalis (Bloch, 1792) broodstock (initial average weight 960 g), during 18 month three phases were developed. Fishes were marked, measured, weighed and distributed in 5 m3 fiber glass tanks (stock density 1.3 kg/m3). In the first phase (3 month), different feeding schedules were applied: 1. feeding in alternate days; 2. feeding every day excluding weekends; 3. feeding twice a day. Before maturation phase and during three month, enriched semi humid food was supplied. Finally, during 12 month, artificial feed was supplied. The appetite dynamics in fishes was influenced by the feeding schedule applied. When food was offered in alternate days, higher consumption was observed. Females showed... |
| Tipo: Proceedings Paper |
Palavras-chave: Fish culture; Feeding; Brood stocks; Fish culture; Feeding; Http://aims.fao.org/aos/agrovoc/c_2918; Http://aims.fao.org/aos/agrovoc/c_2838. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2077 |
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| Sebald, P.. |
| Lomé et les espaces verts sont inséparables. Déjà la traduction du nom du premier village Alomé , est significative : c est la localité située dans les buissons d alo . A l origine, le cordon littoral, large de 2 kilomètres environ entre l océan et la lagune, était recouvert d une épaisse broussaille, haute de trois à quatre mètres. Aux XVIIè et XVIIIè siècle, des immigrants éwé fondèrent des villages dans la vaste zone du cordon sableux, à l emplacement de l actuelle ville de Lomé ; ce qui est frappant, c est que ces villages, contrairement à ceux des rives du Lac Togo, ne sont pas situés sur le rebord méridional du plateau. Au contraire, ils sont installés au sud de la lagune : Bè = la cachette et Alomé = dans les buissons d 'Alo . |
| Tipo: Proceedings Paper |
Palavras-chave: Historical account. |
| Ano: 1998 |
URL: http://hdl.handle.net/1834/1204 |
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| The Fifth Joint IOC/UNIDO Workshop on Marine Debris/Waste Management for the Gulf of Guinea was opened at 9.00 a.m. on Monday 19 April 1999, at the “Centre de Recherches Occanologiques (CRO)” of Abidjan, C&e d’Ivoire. Dr J. Konan, Deputy Director of the CRO, opened the meeting. In his speech, he expressed his satisfaction in having this Workshop in the new conference room of the CRO. He mentioned the important role of the GOG-LME Project in research pollution, and conservation for the Large Marine Ecosystem of the Gulf of Guinea for the last three years. He wished, on behalf of the CR0 Director, a fruitful meeting to the participants. Mr J. Barb&e, IOC representative, welcomed the participants on behalf of the Executive Secretary IOC, Dr Bernal,... |
| Tipo: Proceedings Paper |
Palavras-chave: Wastes; Waste management; Http://aims.fao.org/aos/agrovoc/c_34763. |
| Ano: 1999 |
URL: http://hdl.handle.net/1834/379 |
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| Pianet, R.; Pallares, P.; Petit, Ch.. |
| The difficulties associated with tropical tuna sampling strategies, particularly those resulting from the large-scale adoption of the method of fishing on logs, have caused the Indian Ocean tuna scientists concern since the beginning of the purse seine fishery, as well as the ICCAT SCRS (Standing Committee for Research and Statistics of the International Commission for the Conservation of Atlantic Tunas) in recent years. Upon the recommendation of this Committee, in 1996 Spain and France embarked on a European Union project aiming to study the consequences of this new fishing tactic on the estimated catch by species and by size, and to implement a new sampling strategy so as to improve the accuracy of the statistics. Many specific analyses have been... |
| Tipo: Proceedings Paper |
Palavras-chave: Purse seines; Tuna fisheries. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/971 |
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| Romero López, T.. |
| The present paper involves their results in the pollutant contributions to the aquatic ecosystems according to the products processed in different productive facilities of the Cuba Island, and concerning to the most significant fishing resources as lobster, white shrimp, tuna, shark, snapper, mackerel, jack and bill fish. The polluting loads in 12 years (between 1955 and 1999) respond to the indicators BOD, QOD, TP, TNK and N-NH4. The captures for those years were approximately between 3 950 and 23 970 tons, with fluctuations of BOD loads between 56 and 342 tons and of DQO between 111 and 676 tons. The principal nutrients contribution was the nitrogen, followed by the phosphorous and finally the ammonium, representing a total contribution of 136,3; 52,7... |
| Tipo: Proceedings Paper |
Palavras-chave: Fishery industry; Waste water; Environmental impact; Waste water; Environmental impact; Http://aims.fao.org/aos/agrovoc/c_24927; Http://aims.fao.org/aos/agrovoc/c_24420. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/2083 |
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| Yapi-Gnaoré, V.; Da Costa, K.S.; Kouassi, N.C.; Dembele, I.. |
| Cote d'Ivoire has a diverse ichthyological fauna. About 173 species of fish from 27 families and 67 genera are represented in the different rivers and lacustrine systems. Around 60 species are harvested by artisanal fishing. Less than 10 are used in aquaculture. Strategies need to be developed to preserve these diverse fish populations in both natural and artificial waterbodies. Cote d'Ivoire is watered by four main rivers. These are, from west to east, Cavally (600 km), Sassandra (650 km), Bandama (1050 km) and Comoe (1 100 km). A group of small coastal rivers composed of San Pedro (112 km), Boubo (130 km), Me (140 km), Agnebi (250 km) and Bia (290 km), among others, loca ted in the forest zone, are distributed throughout the southern region. Tributaries... |
| Tipo: Proceedings Paper |
Palavras-chave: Genetics; Fish species; Ichthyofauna. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/722 |
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| Yasindi, A. W.; Taylor, W. D.. |
| Planktonic ciliates were studied in 17 tropical East African lakes of different salinity and trophic status. Oligotrichs (e.g., Strombidium, Strobilidium and Halteria) and scuticociliates (e.g., Cyclidium, Pleuronema, Cristigera), dominated the ciliate communities. Conductivity and trophic status were the most important environmental variables influencing the distribution of ciliate species in East African lakes. Herbivorous oligotrichs were important in oligotrophic and mesotrophic lakes, as they are in temperate and subtropical lakes, but their importance decreased with increasing chlorophyll a concentration and conductivity. On the other hand, the importance of scuticociliates (primarily bacterivores) increased with increasing chlorophyll a and... |
| Tipo: Proceedings Paper |
Palavras-chave: Freshwater lakes; Abundance; Biomass; Pelagic environment; Salinity; Plankton; Community composition; Oligotrophic lakes; Aquatic communities; Regression analysis; Tropical lakes; Species diversity; Plankton; Freshwater. |
| Ano: 2006 |
URL: http://hdl.handle.net/1834/5311 |
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| Registros recuperados: 235 | |
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