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A rationale for introducing a subsidiary fishery in tropical reservoirs and lakes to augment inland fish production: case study from Sri Lanka

Author

Listed:
  • Upali S. Amarasinghe

    (University of Kelaniya)

  • P. A. Don Ajith Kumara

    (National Aquatic Resources Research & Development Agency)

  • Sena S. De Silva

    (Deakin University)

Abstract

An extra 30–40 million tonnes of food fish will be required by 2050 to meet the increasing need for a growing population. In the wake of plateauing of the traditional food fish supplies from marine capture fisheries, the gap in the supplies will have to be met from aquaculture and other plausible strategies, including increased inland fish production. The existing fisheries in tropical reservoirs and lakes traditionally tend to target only table-sized fish, often exotics and/or translocated species, using a single type of gear, mostly gill nets. In such fisheries, many small indigenous species (SIS) are unexploited due to the prohibition of the use of suitable fishing gear. The status of fisheries for small, indigenous species of four Sri Lankan reservoirs was investigated with a view to identifying regulatory constraints to the establishment of SIS fisheries without adversely impacting existing commercial fisheries. It is estimated that a potential of 7.5 t per fisher per annum of SIS through the introduction of a new fishery is obtainable. This study is significant as SIS are recognized as important sources of essential macro- and micronutrients which can play a crucial role in combating malnutrition and micronutrient deficiencies in rural populations of many South and Southeast Asian countries.

Suggested Citation

  • Upali S. Amarasinghe & P. A. Don Ajith Kumara & Sena S. De Silva, 2016. "A rationale for introducing a subsidiary fishery in tropical reservoirs and lakes to augment inland fish production: case study from Sri Lanka," Food Security: The Science, Sociology and Economics of Food Production and Access to Food, Springer;The International Society for Plant Pathology, vol. 8(4), pages 769-781, August.
    • Handle: RePEc:spr:ssefpa:v:8:y:2016:i:4:d:10.1007_s12571-016-0596-4
    DOI: 10.1007/s12571-016-0596-4
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    References listed on IDEAS

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    1. Béné, Christophe & Arthur, Robert & Norbury, Hannah & Allison, Edward H. & Beveridge, Malcolm & Bush, Simon & Campling, Liam & Leschen, Will & Little, David & Squires, Dale & Thilsted, Shakuntala H. &, 2016. "Contribution of Fisheries and Aquaculture to Food Security and Poverty Reduction: Assessing the Current Evidence," World Development, Elsevier, vol. 79(C), pages 177-196.
    2. Kolding, J. & van Zwieten, P., 2006. "Improving productivity in tropical lakes and reservoirs," Monographs, The WorldFish Center, number 37509, April.
    3. Kawarazuka, N., 2010. "The contribution of fish intake, aquaculture, and small-scale fisheries to improving nutrition: A literature review," Monographs, The WorldFish Center, number 38968, April.
    4. Brooke Peterson & Carl Middleton, 2010. "Feeding Southeast Asia: Mekong River Fisheries and Regional Food Security," Working Papers id:2824, eSocialSciences.
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