Author: A. NeilandPublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 112
Book Description
Artisanal Fisheries of the Chad Basin in Africa
Author: A. NeilandPublisher:
ISBN:
Category : Fisheries
Languages : en
Pages : 112
Book Description
A Strategic Reassessment of Fish Farming Potential in Africa
Author: José Aguilar-ManjarrezPublisher: Food & Agriculture Org.
ISBN: 9789251041390
Category : Business & Economics
Languages : en
Pages : 196
Book Description
"(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."
State and Community in Fisheries Management
Author: E. Paul DurrenbergerPublisher: Bloomsbury Publishing USA
ISBN: 0313095523
Category : Science
Languages : en
Pages : 264
Book Description
Those who are involved with fishing and fisheries resource management—including fishermen, their communities, production, processing, distribution, and marketing industries, and various government and non-governmental organizations—confront the contradictions arising from the appropriation, allocation, and distribution of fisheries and marine resources in a variety of ways. The authors call into question the assumptions of policy prescriptions to common resource problems by examining the experiences of people and societies confronted with and adapting to these resource appropriation, allocation, and distribution problems. They suggest that tragedies of resource depletion and institutional failure to deal with them are not characteristic of human nature, but rather are by products of particular cultural practices, institutions, and assumptions. The detailed, empirical ethnographic study of these relationships holds great potential for informing those who are making future policy decisions as well as contributing to the theories of human behavior and cooperation to solve such problems.
Climate Change Implications for Fishing Communities in the Lake Chad Basin
Author: Publisher: Food & Agriculture Organization of the UN (FAO)
ISBN:
Category : Nature
Languages : en
Pages : 96
Book Description
"These Proceedings include (1) the report of and (2) the background paper prepared for the Workshop on climate change implications for fishing communities in the Lake Chad Basin: What have we learned and what can we do better? The Workshop was hosted by the Lake Chad Basin Commission (LCBC) from 18 to 20 November 2011, attended by the Lake Chad Basin countries of Cameroon, Central African Republic (CAR), Chad, Niger and Nigeria, and financed through a Japanese-funded, and Food and Agriculture Organization of the United Nations (FAO)-implemented, project component on Fisheries management and marine conservation within a changing ecosystem context (GCP/INT/253/JPN), in collaboration with LCBC. Presentation topics included: the hydrology of the Lake Chad region, national contexts of climate change and fisheries, identification and reduction of climate change vulnerability in the fisheries of the Lake Chad Basin and an overview of current projects on Lake Chad. Discussions largely focused on: hydrology and climate trends of the Lake Chad basin, national perspectives on impacts and adaptations of climate change, current natural resources projects in the Lake Chad Basin and recommendations for actions to increase adaptability and resilience to be carried out. The Workshop recommended that there is more coordinated action and information sharing regarding natural resources, and increased cooperation between LCBC member State governments to support and strengthen existing political commitments in the Lake Chad Basin for effective aquatic resource use management to ensure sustainable development of land and aquatic based activities in the basin."--P. iv.
CIFA Technical Paper
Author: Food and Agriculture Organization of the United Nations. Committee for Inland Fisheries of AfricaPublisher:
ISBN:
Category : Fish-culture
Languages : en
Pages : 202
Book Description
Aquatic Sciences and Fisheries Abstracts
Author: FAO Publications Catalogue
Author: Food and Agriculture Organization of the United NationsPublisher:
ISBN:
Category : Agriculture
Languages : en
Pages : 292
Book Description
International Books in Print
Author: Wetlands of South Africa
Author: G. I. GowanPublisher:
ISBN:
Category : Wetland conservation
Languages : en
Pages : 306
Book Description
Author: