Download or read book A Strategic Reassessment of Fish Farming Potential in Africa written by José Aguilar-Manjarrez and published by Food & Agriculture Org.. This book was released on 1998 with total page 196 pages. Available in PDF, EPUB and Kindle. Book excerpt: "(Reprint. First published in 1998) The present study is an update of an earlier assessment of warm-water fish farming potential in Africa, by Kapetsky (1994). The objective of this study was to assess locations and areal expanses that have potential for warm-water and temperate-water fish farming in continental Africa. The study was based on previous estimates for Africa by the above author, and on estimates of potential for warm-water and temperate-water fish farming in Latin America by Kapetsky and Nath (1997). However, a number of refinements have been made. The most important refinement was that new data allowed a sevenfold increase in resolution over that used in the previous Africa study, and a twofold increase over that of Latin America (i.e. to 3 arc minutes, equivalent to 5 km x 5 km grids at the equator), making the present results more usable in order to assess fish farming potential at the national level. A geographical information system (GIS) was used to evaluate each grid cell on the basis of several land-quality factors important for fish-farm development and operation regardless of the fish species used. Protected areas, large inland water bodies and major cities were identified as constraint areas, and were excluded from any fish farming development altogether. Small-scale fish farming potential was assessed on the basis of four factors: water requirement from ponds due to evaporation and seepage, soil and terrain suitability for pond construction based on a variety of soil attributes and slopes, availability of livestock wastes and agricultural by-products as feed inputs based on manure and crop potential, and farm-gate sales as a function of population density. For commercial farming, an urban market potential criterion was added based on population size of urban centres and travel time proximity. Both small-scale and commercial models were developed by weighting the above factors using a multi-criteria decision-making procedure. A bioenergetics model was incorporated into the GIS to predict, for the first time, fish yields across Africa. A gridded water temperature data set was used as input to a bioenergetics model to predict number of crops per year for the following three species: Nile tilapia (Oreochromis niloticus), African catfish (Clarias gariepinus) and Common carp (Cyprinus carpio). Similar analytical approaches to those by Kapetsky and Nath (1997) were followed in the yield estimation. However, different specifications were used for small-scale and commercial farming scenarios in order to reflect the types of culture practices found in Africa. Moreover, the fish growth simulation model, documented in Kapetsky and Nath (1997), was refined to enable consideration of feed quality and high fish biomass in ponds. The small-scale and commercial models derived from the land-quality evaluation were combined with the yield potential of each grid cell for each of the three fish species to show the coincidence of each land-quality suitability class with a range of yield potentials. Finally, the land quality-fish yield potential combinations were put together to show where the fish farming potential coincided for the three fish species."

Download or read book CIFA Technical Paper written by Food and Agriculture Organization of the United Nations. Committee for Inland Fisheries of Africa and published by . This book was released on 1972 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thirty years of onchocerciasis control in West Africa written by Laurent Yaméogo and published by IRD Editions. This book was released on 2003 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Biodiversity Dynamics and Conservation written by C. Lévêque and published by Cambridge University Press. This book was released on 1997-05-13 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is a comprehensive book on the biodiversity of one of the most diverse ecosystems known - tropical freshwater.

Download or read book Support Aquaculture Development in Africa written by A. G. Coche and published by . This book was released on 1997 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Bulletin des s ances written by Académie royale des sciences d'outre-mer and published by . This book was released on 1988 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt: One number a year forms the academy's Annuaire.

Download or read book written by and published by . This book was released on 1987 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Environmental Policy and Law written by and published by . This book was released on 1981 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Yearbook of International Organizations 2005 2006 written by and published by De Gruyter Saur. This book was released on 2005-06 with total page 1428 pages. Available in PDF, EPUB and Kindle. Book excerpt: For the Yearbook of International Organizations, the most up-to-date and comprehensive reference to international organizations, the UIA has selected the most important 31,086 organizations from its extensive database of current and previous organizations. Yearbook provides profiles of 5,546 intergovernmental and 25,540 international non-governmental organizations active in nearly 300 countries and territories in the world today. Organization descriptions listed in Volume 1 are numbere sequentially to facilitate quick and easy cross-referencing from the other Yearbook Volumes. Users can refer to Volumes 2 and 3 to locate organizations by region or subject respectively, and comprehensive indexes are included. Naturally, the high standards of accuracy, consistency and detail set by previous editions of the Yearbook of International Organizations have been maintained for this edition.

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 1986 with total page 766 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book L Urbanisation diversifi e written by Madio Fall and published by World Bank Publications. This book was released on 2016-09-30 with total page 229 pages. Available in PDF, EPUB and Kindle. Book excerpt: La Côte d’Ivoire est en quête d’une stratégie de développement qui lui permettra d’atteindre le statut de pays à revenu intermédiaire, ce qui représente un défi qui nécessiterait un taux de croissance annuel de 10 % pendant plus de 13 ans. L’expérience des économies développées et émergentes démontre que le produit intérieur brut (PIB) par habitant augmente avec la progression de l’urbanisation. Néanmoins, l’économie de la Côte d’Ivoire affiche des performances insuffisantes sur le plan de l’urbanisation. L’urbanisation et le revenu par habitant ont une corrélation négative depuis la fin des années 1970, et la pauvreté augmente. Au lieu d’envisager le développement des villes individuellement, un plan d’urbanisation réussie devrait considérer les villes de la Côte d’Ivoire comme un portefeuille d’actifs qui se distinguent les uns des autres par leur taille, leur emplacement et la densité de leur population. Les auteurs de L’Urbanisation diversifiée : Le cas de la Côte d’Ivoire identifient trois types de villes, fondées sur leurs contributions à la croissance et à la création d’emplois : les connecteurs globaux ; les connecteurs régionaux, situées le long des corridors d’échanges et des transports régionaux ; et les connecteurs locaux, qui génèrent les économies de localisation nécessaires à l’agro-industrie. Les parties prenantes des administrations nationales et infranationales et du secteur privé ont formulé une vision commune de l’urbanisation en Côte d’Ivoire : « villes planifiées, structurées, compétitives, attractives, inclusives et organisées autour de pôles de développement ». Afin de réaliser cette vision et d’atteindre le statut de pays à revenu intermédiaire, les décideurs politique ivoiriens doivent agir de toute urgence pour promouvoir une urbanisation diversifiée pour tous les types de villes. Cette présente étude identifie des contraintes principales et des enjeux dans quatre domaines : la planification, les connexions, l’écologisation, et le financement des villes.

Download or read book FAO Publications Titles in Print written by Food and Agriculture Organization of the United Nations and published by . This book was released on 1999 with total page 328 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book R I O M written by and published by . This book was released on 1983 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Vol. include Compte-rendu and reports presented at the Colloque international d'océanographie médicale.

Download or read book The Niger River Basin written by Inger Andersen and published by World Bank Publications. This book was released on 2005-01-01 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Niger River Basin, home to 100 million people, is a vital yet complex asset for West and Central Africa. It is the continent's third largest river basin, traversing nine countries -Benin, Burkina Faso, Cameroon, Chad, C©þte d'Ivoire, Guinea, Mali, Niger, and Nigeria. The River embodies both these nations' livelihoods and their geopolitics. It is not simply water but rather an origin of identity, a route for migration and commerce, a source of conflict, and a catalyst for cooperation. Cooperation among decision-makers and users is crucial to address the threats to water resources. The Niger.

Download or read book Revue hell nique de droit international written by and published by . This book was released on 1998 with total page 794 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book FAO Circulaire Sur Les P ches written by and published by . This book was released on 1969 with total page 680 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Encyclopedia of Associations written by and published by . This book was released on 1965 with total page 1722 pages. Available in PDF, EPUB and Kindle. Book excerpt: A guide to over ... international nonprofit membership organizations including multinational and binational groups, and national organizations based outside the United States, concerned with all subjects or areas of activity.