bluuebunny/crossref_metadata_2025_split huggingface dataset:
Production commerciale de tilapia du Nil sur le Lac Kariba, Zimbabwe.
Authors: Pasipamire Watson 
Published: April 2021

Abstract

Lake Harvest Aquaculture (Pvt) Ltd developed freshwater tilapia production in 1996 on a location initially used by a freshwater shrimp farm set up by a Zimbabwean food company, La Cairn Food Ltd. The farm was established in 1997 and ten years later it produces 3000 tonnes of tilapia which, once harvested and processed, are exported to European and regional markets. The initial projections in terms of production and net farm income were made until 2001, the start of the economic recession. The decline in agricultural production due to insufficient resources and drought resulted in a lack of raw materials for food manufacturing companies. The continued downward trend in feed production affected the company so much that it could no longer support the growing stock of fish. Power and economic issues resulted in the decision by management to stop expanding the business in 2002. The cost of setting up Lake Harvest business is US$10,000,000. The company benefited from external financing from the Commonwealth Development Corporation (CDC) and Comafin, a private Pan-African company with equity capital, before the change in the mode of participation in the capital which took place in 2002. The main costs concerned installation and mooring of cages; and construction of a fish processing plant. Six sites were installed, each costing around US$350,000, including boats. The costs of the processing plant are estimated at around US$4,000,000. This case study aims to provide a technical itinerary and overview of Lake Harvest Aquaculture as a caged tilapia company in Lake Kariba, Zimbabwe; and provide a means of assessment and study for those interested in the development of cage aquaculture in Africa south of the Sahara. All major activities performed at Lake Harvest are described in the same sequence as on the farm: from production, management, to sale of the final product.
Polyculture de tilapia et Clarias en etang dans la commune de Pobè, sud-est du Benin.
Authors: Ondodje Kochikpa 
Published: April 2021

Abstract

The SARL "Pobè Fish Farm" located in the South-East of Benin specializes in the production and sale of tilapia and Clarias. The farm has twenty two ponds of 200 m2 (10 m × 20 m) supplied with water by a pipe system from a natural and permanent stream. The water supply is via a concrete channel which did not allow the water to be renewed once the pond is full. Work has been carried out to allow a larger inflow of water and communication between the ponds. The operation of the farm is modeled on the types of agro-fish farms existing in Asia and encountered in Vietnam in particular; it aims to put theoretical knowledge into practice and on the other hand to contribute to the development of a sector still little known in Benin, despite the many hydroagricultural potentials with which this country is endowed. The species bred at national level are rustic and adapted to the environment and whose genetic performance has not been improved. In fact, only modern breeding following very precise technical standards can allow obtaining interesting results from the point of view of agronomic yield and financial profitability. Indeed, these fish from our ponds are very popular with the populations (the average wholesale price is 1000 FCFA/kg) and are already an integral part of eating habits both in rural areas and in cities.
Etat de la pisciculture périurbaine dans la ville province de Kinshasa dans le contexte post-conflits armés.
Authors: Mutala Simon , Fataki Michel Djoko , Beya Benoit 
Published: April 2021

Abstract

For four decades, fish farming has declined following the breakdown of bilateral cooperation resulting in the sudden departure of expatriate executives, inexperience, and insufficient local expertise. The looting and destruction of fish farming infrastructure led to the cessation of supervision, extension and the abandonment of fish farming activities by fish farmers. Added to this is the deterioration of the economic fabric reinforced by the war and the total insecurity of the city. From 2004 to 2008, the Congolese government benefited from the support of numerous partners for the revival of fish farming: more than 402 fish farmers and 18 NGOs benefited from the support of the World Bank, Belgian technical cooperation, the Bureau Central Coordination, and FAO. Interesting results have been obtained by these projects, but their perpetuation remains dependent on an intensification of the fish farming systems and the implementation of measures capable of enhancing local resources.
L'élevage en cage à faible niveau d'intrants: vers la sécurité alimentaire et L'amélioration du niveau de vie en zones rurales au Kenya.
Authors: Charo-Karisa Harrison , Munguti Jonathan M , Waidbacher Herwig , Liti David , Zollitsch Werner 
Published: April 2021

Abstract

Recent experiences and successes, including the decline in capture fisheries and the overall increase in aquaculture production, have sparked the development of commercial cage culture in Africa. This case study focuses on tilapia cage culture in the waters of Lake Victoria in Kenya and in secondary dams in the Lake Victoria basin. It highlights the challenges and innovations that Kenyan fish farmers and fishermen have demonstrated to achieve success. In particular, the study takes into account the public's ever-growing interest in and questioning of the sustainability of this farming system in the lake, both ecologically and environmentally. This study presents how fish farmers and researchers have successfully reared caged fish with low cost feed, to produce quality seeds, and to use locally available materials for the construction and safety of cages. Cage farming can be profitable in the Lake Victoria basin if the obstacles that arise as the process develops are gradually overcome.
Experiences and lessons learned from six years of government-led inland aquaculture development projects in northwest Namibia, 2004-2009.
Authors: Elago Panduleni Ndinelago 
Published: April 2021

Abstract

The Government of Namibia addresses food security and poverty reduction through the development of rural sectors, including fisheries and aquaculture. Freshwater aquaculture is recognized as a potential target for sustainable development. The Government of Namibia, together with the Government of Spain signed an agreement in 2003 to establish the Inland Aquaculture Centre (IAC), to demonstrate the possibilities of fish farming activities in the northwest of Namibia and in the country at large. Seven hundred new small-scale fish farms (SSFF's) were identified to participate in fish farming activities. Around 300+ farmers received an approximate total of 550,000 fingerlings over 5 years. With the extension of the project in 2007-2009 through strengthening of extension services on inland aquaculture development, under the 'Aquaculture in Northern Namibia' (ANN) Project umbrella, an extra 100 or more new farmers were identified. Results show that the extension services managed to assist in fish harvests for 114 SSFF's with 9560 kg of tilapia and 1556 kg of catfish harvested. The project's findings highlighted difficulties in accurately measuring fish production. Most fish farmers are located in a region where they only have enough water for fish culture during 5 months of the year. Also, many of the ponds they were using were incorrectly constructed and not suitable for fish farming. Farms in areas such as these, in hindsight, were unrealistic targets for aquaculture development, and it is the opinion of the author that it is important to re-direct effort and resources towards those able to farm with a good water supply for at least 10-12 months of the year. As of July 2010 the question remains unanswered; can fish farming in northwest Namibia be sustainable and economically viable with the current level of government extension, infrastructure and locally available resources? The author suggests that this will be possible in the next 5 years, once the government, together with the private sector and NGOs join to re-assess their current sets of objectives, which are, at present, too ambitious. Improvements could be made by implementing a better strategy, directing resources at a smaller number of sustainable, successful fish farmers rather than a larger number that include more inefficient farms. Large numbers of farms look good in policy documents, but spreading resources widely and inefficiently results in reduced net production and sustainability in the mid- to long-term.
La carpe commune (Cyprinus carpio) au Cameroun: historique et description de différentes pratiques de reproduction et d'élevage dans l'Ouest et le Nord-ouest Cameroun.
Authors: François Christophe , Ndjonjip Yves Merlin 
Published: April 2021

Abstract

Introduced in Cameroon from the 1970s from the USA (Israeli strain), carp production has evolved into a real roller-coaster ride. The control of its breeding began with attempts at reproduction, first natural and then artificial. Apart from the IRAD station in Foumban and the GIC AIO in Batié, artificial reproduction is not implemented anywhere else. Raising of this species is most common in the western highlands region. It is done in polyculture with tilapia and sometimes catfish and this at low density. With a diet based on fertilization of ponds supplemented with a few agro-industrial by-products, the final average weights and yields meet the expectations of producers. Among the barriers to the expansion of this species, we note the unavailability of carpillons throughout the year, the damage caused by this species on the dikes, and finally the characteristics of the flesh which do not seem to be very popular with consumers.
The role of fish farmers associations in aquaculture development in Uganda: case study of Walimi Fish Farmers Cooperative Society.
Authors: Walakira John K , Isyagi Nelly A , Ssebusubi Maurice , Leschen William 
Published: April 2021

Abstract

The fisheries sector in Uganda provides employment, boosts national foreign exchange earnings, and offers a healthy source of protein. Main challenges facing the expansion and sustainability of the sector range from declining fish stocks in the natural water bodies to inconsistent supply to market chains. Development of aquaculture offers great potential to boost Uganda's fish processing capacity but is still limited by a poorly established supply through the market chain. Public-private partnership initiatives have reorganized fish farmers into viable groups that are focusing on filling gaps, thereby directly increasing economic and social benefits, especially to rural communities. Through WAFICOS, a fish farmers association formed in 2004, private sector linkages have been strengthened, fostering aquaculture development in Uganda. Since its formation in 2004, privately operated hatcheries have addressed problems of fish seed availability. The association has created markets for farmed fish products, thus stimulating aquaculture production. Members of WAFICOS, in March 2010, numbering 315, have direct access to advisory services, appropriate technologies, farm inputs, markets and credit facilities. This case study should be read as an illustrative example of how such a fish farmers' association was conceived, set up and its management and working infrastructure developed. From 2008, the Cooperative was supported and advised by the USAID Fish Project, very much with the objective of being a financially self-sustaining organization. Since its inception there have been a number of lessons learned from successes and failures. Time will tell whether the organization continues to develop and can remain financially viable to benefit its members.
A case study on the experiences of innovative, small-scale fish farmers in Malawi.
Authors: Valeta Joshua M H S 
Published: April 2021

Abstract

The Innovative Fish Farmers Network Trust (IFFNT) comprising of 25 farmers was established as part of the Master Plan Study on Aquaculture Development in Malawi (ADiM) with funds from the Japanese International Cooperation Agency (JICA) in 2004. ADiM aimed at promoting aquaculture development by establishing model farmers through financial and technical support from JICA and the Department of Fisheries (DoF). Farmers attended training facilitated by Bunda College, University of Malawi, and farmer exchange and study tours to Zambia and Egypt. They also received small grants to implement pilot on-farm projects. Production increased from about 0.7 tons/ha/year in 2003, to over 2 tons/ha/year in 2005. Other farmers adopted the technologies. However, as ADiM phased out in 2006, IFFNT became dormant. Its linkages with DoF weakened. There was no proper phase out strategy. Both ADiM and DoF needed to facilitate IFFNT until it was properly established; a change that should be adopted in any future IFFNT facilitation.
Case study on developing financially viable Recirculation Aquaculture Systems (RAS) for tilapia production in Egypt: technology transfer from the Netherlands.
Authors: Radwan Ismail A 
Published: April 2021

Abstract

This case study describes the first trial operation of a recirculating aquaculture system (RAS) for tilapia production in Egypt. The fish farmer in this case study became involved with an exchange programme with the Netherlands, resulting in wholesale changes in his commercial farm which are described in this case study. Also presented is a cost benefit analysis of the results of the first trial.
Working with the private sector in aquaculture development - the experience of GNAEP.
Authors: Mowhila Reshad 
Published: April 2021

Abstract

Since 2002 the Greater Noakhali Aquaculture Extension Project (GNAEP) has been promoting rice-prawn (giant freshwater prawn, Macrobrachium rosenbergii) culture as a means of adding value to small-scale aquaculture systems in southeast Bangladesh. Over a period of two years there has been a rapid expansion of this culture system, crucial to which has been the development of partnerships between GNAEP and the private sector. Through a process of dialogue and confidence building, GNAEP has persuaded local businessmen to invest in prawn hatcheries, manufacture of fish meal (ground, sun-dried fish) bought directly from artisanal fishermen on Hatiya Island and in setting up a prawn purchasing center. These partnerships have supported the Project's primary objective of improving the livelihoods of the rural poor, through ensuring supplies of cheap post-larvae, partly as credit in kind, to farmers, through releasing poor fishermen from exploitative relationships with local money lenders and through creating competition in the local market. The influence of the private sector on local and national policy makers has been another advantage from the system.
Typology of farming systems in brackishwater ponds in the Philippines.
Authors: Irz Xavier , Stevenson James R. 
Published: April 2021

Abstract

To classify brackishwater pond farming systems in the Philippines, a farm-level survey in the two main production regions (Central Luzon and Western Visayas) produced input and data for principal components analysis and cluster analysis to generate a typology of farming systems. A solution of five farm types is described in detail and interpreted. The implications for comparative analysis of sustainability impacts are described.
Vac systems in the Mekong Delta, Vietnam.
Authors: Pham Cu Thien 
Published: April 2021

Abstract

VAC systems are an integration of garden (vuon), pond (ao) and animal pen (chuong). VAC farming systems can be classified into different types on the basis of the uses and intensity level of orchard and pond. Fruit trees include citrus, longan, mango and sapodilla, and vegetables include cassava, centella, sweet potato and water spinach. Livestock are poultry and/or pigs. A fish polyculture is practised with species such as silver barb (Barbonymus gonionotus), Indian major carps (mrigal, Cirrhinus cirrhosus, and rohu, Labeo rohita), silver carp (Hypophthalmichthys molitrix), grass carp (Ctenopharyngodon idella), giant gourami (Osphronemus goramy), river catfish (Pangasianodon hypophthalmus), hybrid catfish (Clarias macrocephalus × C. gariepinus), common carp (Cyprinus carpio), kissing gouramy (Helostoma temminckii) and Nile tilapia (Oreochromis niloticus). Pig manure is commonly used as fertilizer for crops while rice by-products are mainly used to feed the livestock. Major inputs for ponds are on-farm resources (crop residue, grass, fallen fruit, rice by-products, human waste, poultry manure, urine and washing from the pig sty) for the low input systems, and off-farm feeds (trash fish, fish meal, golden snail) for medium and high input aquaculture systems. Fish production is below 2 t ha-1 year-1 in the low input and 2-10 t ha-1 year-1 for medium and high input aquaculture.In general, VAC farming in the Mekong Delta is practised in a medium farm with an average pond area ranging from 500 to 1,000 m2, producing fish at less than 1 t yr-1, of which about 250 kg is for family consumption and the surplus, if any, for sale is insignificant. As VAC still has many problems and constraints, an appropriate way to develop VAC farming in the Mekong Delta is to provide farmers with farm component technologies and management knowledge.
Trials of cage fish culture in Ea Soup reservoir, Dak Lak province, central highlands of Vietnam.
Authors: Truong Ha Phuong , Phan Dinh Phuc , Phan Thuong Huy , Sollows John 
Published: April 2021

Abstract

Reservoirs in the Central Highlands of Vietnam are numerous and growing in number. Most of these reservoirs were built mainly for irrigation, with flood control and occasionally, hydroelectricity as secondary functions. Ea Soup reservoir covers an estimated 240 ha at the upper storage level, and has a drawdown of only 2.5 m. Probably for this reason, there is an abundant supply of macrophytes in the reservoir. While a number of species have cage culture potential, grass carp (Ctenopharyngodon idella) is particularly popular in many parts of Vietnam. The species feeds almost entirely on macrophytes, so cash requirements for feed are minimal. This is suitable for most poor farmers in the area. The market price, about VND 15,000 kg-1 (US $1=VND15,000 approximately) is higher than that for many species. In Ea Soup reservoir, cage culture of grass carp commenced in 1993, and rapidly expanded. By 1996, there were 152 cages. Stocks were hit by disease, and were decimated late in the year. These losses were a strong discouragement to continuation of the practice. Many owners suffered heavy financial losses. Pollution, poor circulation in the cages, high stocking density and overcrowding of cages may have contributed to the disease problem. From June 1998, the Project, jointly with three fishers has tested the culture of grass carp combined with small numbers of Nile tilapia (Oreochromis niloticus) and common carp (Cyprinus carpio) in cages with new materials, somewhat larger mesh size, and lower stocking density. The economic viability of this modified technology will depend mainly on the lifetime of the cage. Nevertheless, fishers are continuing to culture at their own expense. This suggests that the technology has some sustainability in the reservoir. The extent to which cage culture can be practiced remains to be seen, but any expansion must be done with caution.
Trash fish utilization in aquaculture in Vietnam.
Authors: Le Anh Tuan 
Published: April 2021

Abstract

There is concern that the rapid expansion of aquaculture may be constrained in future by increasing dependence on low-value marine trash fish and fishmeal. According to Vietnamese Government plans, aquaculture production for 2006 and 2010 will be 1.15 and 2.00 million t, doubling and tripling of the 1995 figure of 0.65 million t, respectively. A study on which this case study is based described the production, uses and trends of trash fish in Vietnam to assess if its availability will restrict future expansion of aquaculture in the country. Field visits and interviews were carried out in some coastal provinces as well as in Hanoi and Ho Chi Minh cities in February 2003. There are conflicting data on the volume of trash fish landed. Although the inshore fishery in Vietnam is heavily fished, the total fish catch, as well as the proportion of biomass of trash in the total catch, continues to rise. There has been a dramatic rise in the use of trash fish in aquaculture but there are competing uses for trash fish for livestock feed, fish sauce and direct human food. It is unlikely that aquaculture based on traditional use of trash fish as a direct feed can expand considerably. The future expansion of marine crustaceans and finfish culture in Vietnam will depend increasingly on formulated pelleted feed and on imported fish meal and fish oil.
Small-scale pond aquaculture in Kishoreganj, Bangladesh.
Authors: Edwards Peter 
Published: April 2021

Abstract

This case study was prepared as part of an Asian Development Bank (ADB) Special Evaluation Study (SES) on Small-Scale Freshwater Rural Aquaculture for Poverty Reduction. The SES used primary and secondary data and published information to document the human, social, natural, physical and financial capital available to poor people involved in the production and consumption of freshwater farmed fish and to identify various channels through which the poor are affected, such as through access to livelihood assets, markets and prices, and access to services and facilities. This case study was tailored to highlight the operating environment of small-scale fish farmers in rural Bangladesh, and their livelihood profiles.
Small-scale farming of tilapia in ponds in Central Luzon, Philippines.
Authors: Edwards Peter 
Published: April 2021

Abstract

This case study was prepared as part of an Asian Development Bank (ADB) Special Evaluation Study (SES) on Small-Scale Freshwater Rural Aquaculture Development. In the context of the SES, this case study used primary and secondary data and published information to document the human, social, natural, physical and financial capital available to households involved in the production and consumption of freshwater farmed fish and to identify channels through which the poor are affected. This case study describes first the history, biophysical, socioeconomic, and institutional characteristics of Central Luzon, followed by accounts of the technology and management for farming tilapia, with detailed profiles of fish farmers and other beneficiaries. Transforming processes are discussed with respect to markets, institutions, support services, policy and legal instruments, natural resources management, and environmental issues.
Small indigenous fish species of Bangladesh - potential for culture and conservation.
Authors: Wahab Md. Abdul , Alim Md. Abdul , Uddin Md. Sharif 
Published: April 2021

Abstract

The possibilities of conservation and production potential of a large number of small indigenous fish of Bangladesh through aquaculture remains unexplored. Only a small number of carps has been used for polyculture throughout the country which provide employment for a large number of people in the domestic fish marketing chain as farmers, traders, intermediaries, day labourers and transporters. Special attention is needed for the culture and conservation of small indigenous species (SIS) because they are an important source of vitamin A and minerals. SIS used to be abundant in rivers, streams, beels (deeper portions in low-lying natural depressions), ponds, ditches and flood plains in the past, but have gradually been disappearing from natural systems, which in turn severely affects biodiversity.