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• 11. [Article] The Role of Fish for Food and Nutrition Security: A Review

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: The Role of Fish for Food and Nutrition Security: A Review Author: Kawarazuka, Nozomi Abstract only. Title: The Role of Fish for Food and Nutrition Security: A Review Author: Kawarazuka, Nozomi Abstract only. Close

• 12. [Article] Economics of Sustainable Aquaculture in Asian Region, Issues Revisited

  Research Paper

  Citation × Citation Citation Abstract Copy Title: Economics of Sustainable Aquaculture in Asian Region, Issues Revisited Author: Bhattacharya, Poulomi Research Paper Title: Economics of Sustainable Aquaculture in Asian Region, Issues Revisited Author: Bhattacharya, Poulomi Research Paper Close

• 13. [Article] Is Aquaculture a Sustainable Source of Food and income in Nigeria?

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: Is Aquaculture a Sustainable Source of Food and income in Nigeria? Author: Ogundari, Kolawole Abstract only. Title: Is Aquaculture a Sustainable Source of Food and income in Nigeria? Author: Ogundari, Kolawole Abstract only. Close

• 14. [Article] A Comparative Analysis of Financial and Development Impacts of Two Hatchery Approaches to Promote Nile Tilapia in Northwest Bangladesh

  Abstract only.

  Citation × Citation Citation Abstract Copy Title: A Comparative Analysis of Financial and Development Impacts of Two Hatchery Approaches to Promote Nile Tilapia in Northwest Bangladesh Author: Haque, Mohammad Mahfujul, Barman, Benoy K., Little, David C. Abstract only. Title: A Comparative Analysis of Financial and Development Impacts of Two Hatchery Approaches to Promote Nile Tilapia in Northwest Bangladesh Author: Haque, Mohammad Mahfujul, Barman, Benoy K., Little, David C. Abstract only. Close

• 15. [Article] Aquaculture and Happiness in Vietnam - A Microeconometric Analysis

  The contribution of aquaculture development to the Vietnamese national economy and to farmers’ incomes has been documented in various government reports as well as working papers produced by development ...

  Citation × Citation Citation Abstract Copy Title: Aquaculture and Happiness in Vietnam - A Microeconometric Analysis Author: Hite, Diane, Nguyen, Minh Duc, Kinnucan, Henry The contribution of aquaculture development to the Vietnamese national economy and to farmers’ incomes has been documented in various government reports as well as working papers produced by development projects. However, the role of aquaculture in the life satisfaction of poor farmers has not been considered rigorously. In particular, it is very difficult to find any literature relating aquaculture adoption to job or life satisfaction of the adopters. Due to the controversial role of income in creating happiness and the increased contribution of fish production in the livelihoods of small scale farmers, there exists a question of whether income increases from adoption of aquaculture would raise happiness of farmers. This study identifies some determinants of job satisfaction and subjective well-being of small scale fish farmers in Vietnam and examines the role of earnings from fish production in generating their happiness. Cumulative logistic models with data from a 2001 survey in Southern Vietnam show that relative income, not absolute income, from aquaculture raises their job satisfaction. Higher satisfaction is also associated with involvement in extension services, a larger relative pond surface and a higher expectation level on earnings from aquaculture. The role of income per capita in job satisfaction or happiness is not confirmed. Happiness of the farmers increases with cash earnings from fish farming and income from wild fish relative to total household income. Title: Aquaculture and Happiness in Vietnam - A Microeconometric Analysis Author: Hite, Diane, Nguyen, Minh Duc, Kinnucan, Henry The contribution of aquaculture development to the Vietnamese national economy and to farmers’ incomes has been documented in various government reports as well as working papers produced by development projects. However, the role of aquaculture in the life satisfaction of poor farmers has not been considered rigorously. In particular, it is very difficult to find any literature relating aquaculture adoption to job or life satisfaction of the adopters. Due to the controversial role of income in creating happiness and the increased contribution of fish production in the livelihoods of small scale farmers, there exists a question of whether income increases from adoption of aquaculture would raise happiness of farmers. This study identifies some determinants of job satisfaction and subjective well-being of small scale fish farmers in Vietnam and examines the role of earnings from fish production in generating their happiness. Cumulative logistic models with data from a 2001 survey in Southern Vietnam show that relative income, not absolute income, from aquaculture raises their job satisfaction. Higher satisfaction is also associated with involvement in extension services, a larger relative pond surface and a higher expectation level on earnings from aquaculture. The role of income per capita in job satisfaction or happiness is not confirmed. Happiness of the farmers increases with cash earnings from fish farming and income from wild fish relative to total household income. Close

• 16. [Article] Modelling adoption of rice-fish systems with fuzzy logic

  Most current models analyzing technology adoption are based on a function that assumes farmers make decisions upon utility maximization but ignores cultural or social factors. The traditional production ...

  Citation × Citation Citation Abstract Copy Title: Modelling adoption of rice-fish systems with fuzzy logic Author: Dang Kieu, Nhan, Udo, Henk, Kaymak, Uzay, Bosma, Roel Most current models analyzing technology adoption are based on a function that assumes farmers make decisions upon utility maximization but ignores cultural or social factors. The traditional production systems of the Mekong Delta were based on floating rice varieties and fish harvested both from rivers and rice fields. Since 1980 the presence of fish in the rice fields decreased and research developed the socalled concurrent rice–fish system to capture the advantages of the synergy. Whether this is a feasible option depends on the farmers’ drives and motives for taking-up the technology. In 2000 we made an inventory among 60 farmers who adopted the rice–fish system in four districts to describe their resources and motivations. In 2006 we repeated this survey among 94 farmers including potential adopters, in order to evaluate the take-up potential of the rice–fish system in the Mekong Delta. Income/person and income/ha of the farm households with a rice–fish system were close to double, while their land area (2.5ha) was not significantly larger than those farms without a rice–fish system (1.95ha). Usually farmers integrating also pigs and fish had the smallest land area. The farmers’ non-adoption of the rice–fish system was mainly due to low availability of capital and land, and to inappropriate location of the field in relation to the homestead, water availability, and agro-ecological conditions. To create space for more upland crops was an important argument for the construction of a rice–fish system. Modeling confirmed that under appropriate agro-ecological conditions the take-up of rice–fish systems can be stimulated by increasing know-how on fish and on system component integration. The sensitivity of the fuzzy logic simulation did not confirm the importance of land size and wealth ranking for the take-up. Title: Modelling adoption of rice-fish systems with fuzzy logic Author: Dang Kieu, Nhan, Udo, Henk, Kaymak, Uzay, Bosma, Roel Most current models analyzing technology adoption are based on a function that assumes farmers make decisions upon utility maximization but ignores cultural or social factors. The traditional production systems of the Mekong Delta were based on floating rice varieties and fish harvested both from rivers and rice fields. Since 1980 the presence of fish in the rice fields decreased and research developed the socalled concurrent rice–fish system to capture the advantages of the synergy. Whether this is a feasible option depends on the farmers’ drives and motives for taking-up the technology. In 2000 we made an inventory among 60 farmers who adopted the rice–fish system in four districts to describe their resources and motivations. In 2006 we repeated this survey among 94 farmers including potential adopters, in order to evaluate the take-up potential of the rice–fish system in the Mekong Delta. Income/person and income/ha of the farm households with a rice–fish system were close to double, while their land area (2.5ha) was not significantly larger than those farms without a rice–fish system (1.95ha). Usually farmers integrating also pigs and fish had the smallest land area. The farmers’ non-adoption of the rice–fish system was mainly due to low availability of capital and land, and to inappropriate location of the field in relation to the homestead, water availability, and agro-ecological conditions. To create space for more upland crops was an important argument for the construction of a rice–fish system. Modeling confirmed that under appropriate agro-ecological conditions the take-up of rice–fish systems can be stimulated by increasing know-how on fish and on system component integration. The sensitivity of the fuzzy logic simulation did not confirm the importance of land size and wealth ranking for the take-up. Close

• 17. [Article] Measuring Profitability in Small Scale Aquaculture Enterprises in South West Nigeria

  Aquaculture, the farming of aquatic organisms especially fish, in Nigeria is dated back to the 1940s at Onikan Experimental farm, South West Lagos and the 160ha industrial scale fish farm, Middle Belt, ...

  Citation × Citation Citation Abstract Copy Title: Measuring Profitability in Small Scale Aquaculture Enterprises in South West Nigeria Author: Akegbejo-Samsons, Yemi, Adeoye, Deji Aquaculture, the farming of aquatic organisms especially fish, in Nigeria is dated back to the 1940s at Onikan Experimental farm, South West Lagos and the 160ha industrial scale fish farm, Middle Belt, Panyam, Jos in 1951. Since then, great expansion has been witnessed in Nigeria’s aquaculture industry; graduating from extensive practice to super-intensive systems. This is evidenced by the use of concrete and plastic tanks as flow-through and re-circulating systems in boosting fish production in a small space as compared to extensive system utilizing earthen pond facility. The advent of extruded floating feed compared to supplementary and sinking feed are all indications of Nigeria aquaculture industry expansion. Despite this advancement, the industry contributes only 20% to Nigeria local fish production. Researchers, policy makers and donors are still doubtful about the potential of aquaculture to contribute to sustainable rural livelihoods in Nigeria. This paper presents the results of the study carried out to investigate the profitability of aquaculture enterprises in South West Nigeria. 40 randomly selected fish farms were visited, and data were collected based on their production operations. The study focussed on measures based on classical techniques which examined returns to resources used, benefit/cost ratios, welfare contribution to households/society, improvement to rural livelihoods and value addition. We use past and current records of net returns above costs and a cost of living allowance to evaluate the economic and financial sustainability of the farms in the study area. The results show that only 25% were profitably operated, while 75% were not. Title: Measuring Profitability in Small Scale Aquaculture Enterprises in South West Nigeria Author: Akegbejo-Samsons, Yemi, Adeoye, Deji Aquaculture, the farming of aquatic organisms especially fish, in Nigeria is dated back to the 1940s at Onikan Experimental farm, South West Lagos and the 160ha industrial scale fish farm, Middle Belt, Panyam, Jos in 1951. Since then, great expansion has been witnessed in Nigeria’s aquaculture industry; graduating from extensive practice to super-intensive systems. This is evidenced by the use of concrete and plastic tanks as flow-through and re-circulating systems in boosting fish production in a small space as compared to extensive system utilizing earthen pond facility. The advent of extruded floating feed compared to supplementary and sinking feed are all indications of Nigeria aquaculture industry expansion. Despite this advancement, the industry contributes only 20% to Nigeria local fish production. Researchers, policy makers and donors are still doubtful about the potential of aquaculture to contribute to sustainable rural livelihoods in Nigeria. This paper presents the results of the study carried out to investigate the profitability of aquaculture enterprises in South West Nigeria. 40 randomly selected fish farms were visited, and data were collected based on their production operations. The study focussed on measures based on classical techniques which examined returns to resources used, benefit/cost ratios, welfare contribution to households/society, improvement to rural livelihoods and value addition. We use past and current records of net returns above costs and a cost of living allowance to evaluate the economic and financial sustainability of the farms in the study area. The results show that only 25% were profitably operated, while 75% were not. Close