斯里兰卡安帕拉地区基拉瓦纳和拉贾韦瓦的社区养鱼场:一个成功的故事

W. Fernando, K. Pushpalatha, J. Chandrasoma
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摘要

根据斯里兰卡渔业和水产资源发展部的水生资源开发和质量改善项目,在斯里兰卡的10个地区建立了25个社区小型苗圃,涉及社区团体。其中两个是2006年在安帕拉地区的基拉瓦纳和拉贾韦瓦建立的。每个养鱼场建立在0.8公顷的土地上,由10个泥塘组成,水域面积约为4,500平方米。在这些小型苗圃中饲养尼罗罗非鱼、鲶鱼、罗虎鱼、鳙鱼和鲤鱼的鱼苗至鱼种期。一般来说,每年进行3个培养周期(范围从45-70天)。2013-2014年每个养殖周期平均生产鱼种数为242301条(基拉瓦纳)和262935条(拉贾韦瓦)。Kirawana和Rajawewa小型苗圃从苗种到鱼种阶段的平均成活率分别为71.8%和79.2%。Kirawana和Rajawewa的每条鱼种生产成本分别为0.69卢比和0.76卢比。基拉瓦纳地区的年净利润为953,085卢比,拉贾韦瓦地区的年净利润为974,643.00卢比[2016年5月,1美元≈146.9卢比]。经营小型苗圃所获得的净利润是在同等面积土地上种植水稻所产生利润的7倍。在2009-2014年期间,这些小型苗圃对安帕拉地区鱼种总量的贡献为20.3%。对农村社区来说,从鱼苗到鱼种阶段的饲养是一项非常有利可图的事业,管理良好的养鱼场可以在满足我国内陆水库鱼种需求方面发挥重要作用,以发展以养殖为基础的渔业。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Community based fish nurseries at Kirawana and Rajawewa in the Ampara district, Sri Lanka: A success story
Under the Aquatic Resource Development and Quality Improvement project (ARDQIP) of the Ministry of Fisheries and Aquatic Resources Development of Sri Lanka, 25 community-based mini-nurseries involving community groups were established in 10 districts of Sri Lanka. Of these, two were established at Kirawana and Rajawewa in the Ampara district in 2006. Each fish nursery established on lands with an extent of 0.8 ha, consisted of 10 mud ponds with water area of around 4,500 m 2 . Fish fry of Nile tilapia, catla, rohu, mrigal and common carp were reared upto fingerling stage in these mini-nurseries. In general, 3 culture cycles (range from 45-70 days) have been carried-out per annum. Average number of fish fingerlings produced per culture cycle during 2013-2014 were 242,301 (Kirawana) and 262,935 (Rajawewa). Average survival rates from fry to fingerling stage achieved in Kirawana and Rajawewa mini-nurseries were 71.8% and 79.2% respectively. Production cost per fingerling was Rs. 0.69 and Rs. 0.76 respectively for Kirawana and Rajawewa. Net profit obtained per annum was Rs. 953,085.00 in Kirawana and Rs. 974,643.00 in Rajawewa [In May 2016, 1 USD ≈ Rs. 146.9]. Net profits earned by operating mini-nurseries were seven times higher, when compared with the profits generated through paddy cultivation on a land of similar extent. During 2009-2014 period, these mini-nurseries collectively made a contribution of 20.3% to the total fish fingerlings stocked in the Ampara district. Rearing of fish fry to fingerling stage is a very profitable enterprise for rural communities and well-managed fish nurseries can play an important role in meeting the fingerling requirement to develop culture-based fisheries in inland reservoirs of the country.
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