Exploring the potential of small water bodies as an integrative management tool for fisheries production
Exploring the potential of small water bodies as an integrative management tool for fisheries production
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DOI：
10.1111/fme.12529
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发表时间：
2021-12-22
影响因子：
2
通讯作者：
Marriott, Andrew Lewis
中科院分区：
文献类型：
--
作者：
Aura, Christopher Mulanda;Mwarabu, Ruth Lewo;Marriott, Andrew Lewis
了解小型水体 (SWB) 的潜力将为增加粮食和能源生产提供更多投资机会。这项研究确定了肯尼亚中部 8 个县和西部 7 个县的 SWB 渔业发展的承载能力。 SWB 的承载能力是使用社会经济指数 (SI)、营养状态指数 (TSI) 以及 74 个 SWB 的社会经济和湖泊学数据摘要来计算的。中部地区 37 个抽样的 SWB 潜力为 72,447 吨，而西部地区在类似数量的抽样地点中只有 447 吨，构成全国水产养殖总潜力的一部分。中部地区较高的潜力归因于该地区相对较大的水力发电大坝。为了提高承载能力低的SWB的产量，建议重新放养本地特有鱼类，这些鱼类需要有限的补充饲料或不需要补充饲料。然而，在深度达到 3.0 m 或以上的 SWB，可以优化集约化饲养和良好的水循环，建议采用网箱养殖鱼类以及强大的当地社区协会。这里的索引整体方法形成了渔业生产的综合管理工具。
Understanding the potential of small water bodies (SWBs) will open greater opportunities in investment towards increased food and energy production. This study established the carrying capacity for fisheries development in SWBs in eight counties in Central and seven counties in Western Kenya. The carrying capacity of SWBs was calculated using socio-economic index (SI), trophic status index (TSI), and summaries of socio-economic and limnological data from 74 SWBs. The central region had a potential of 72,447 t in 37 sampled SWBs, whereas that of the western region had only 447 t in a similar number of sampled sites that forms part of the total national aquaculture potential. The higher potential in the central region is attributed to the relatively larger hydroelectric dams located in the area. To boost production in SWBs with low carrying capacities, restocking with native endemic fish species, which require limited or no supplementary feeding, is recommended. However, in SWBs, where depths reach 3.0 m or more, which optimises on intensive feeding and good water circulation, cage culture reared fish coupled with a strong local community association would be recommended. The indexing holistic approach herein forms an integrative management tool for fisheries production.