干旱区生态环境知识资源中心(Arid): Economic, social, and environmental assessment of farming Nile tilapia in net-cages in a reservoir in hot semi-arid region during an extended drought event

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DOI	10.1007/s11356-022-20998-1
	Economic, social, and environmental assessment of farming Nile tilapia in net-cages in a reservoir in hot semi-arid region during an extended drought event
	Henry-Silva, Gustavo Gonzaga; da Silva Cacho, Julio Cesar; Teixeira Moura, Rodrigo Savio; Flickinger, Dallas Lee; Valenti, Wagner C.
通讯作者	Henry-Silva, GG
来源期刊	ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
ISSN	0944-1344
EISSN	1614-7499
出版年	2022
卷号	29 期号:52 页码:78768-78779
英文摘要	Water reservoirs have been constructed in hot semi-arid regions, which may be used to produce fish. The present study described major features of the economic, social, and environmental characteristics of a net-cage Nile tilapia production system, stocked with 100 and 120 fish/m(3), implemented in a reservoir in the hot semi-arid region of Brazil during an extended drought event. The production cycle was reduced from 6-8 to 4 months because of the lack of water in the reservoir. This resulted in the harvest of small fish weighting similar to 300-350 g that reached a low value in the market. As a consequence, indicators of financial feasibility showed low values, which were not attractive for entrepreneurs. Nevertheless, for both stocking densities, the monthly income was about US$ 1,500.00, which is 5-fold the minimum wage in the region. In general, the activity has a positive social impact, despite the low contribution to development of the local economy and food security because most supply came from outside and fish were sold to distant regions. Various age and ethnic groups were represented among the employees, but the enterprise was operated only by men. Phosphorus accumulations in the reservoir were 2.1 and 2.0 kg/t of fish produced and particulate material accumulations of 110 and 100 kg/t of fish production for 125 fish/m(3) and 100 fish/m(3), respectively. The study indicated that the Nile tilapia culture in hot semi-arid region is strongly affected by long drought events and adaptations in the planning and management should be done when implementing the systems. However, it seems that the activity has some resilience to still provide food, generate wealth, and promote social development for local population with low environmental impact.
英文关键词	Indicators of sustainability Aquaculture Fish farming Environmental impact Oreochromis niloticus Environmental friendliness
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000810348700005
WOS关键词	AQUACULTURE ; FISH ; CULTURE ; INDICATORS ; SUSTAINABILITY ; WATER ; NUTRIENT ; SEDIMENTATION ; COMMUNITIES ; PLANKTON
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/392528
推荐引用方式 GB/T 7714	Henry-Silva, Gustavo Gonzaga,da Silva Cacho, Julio Cesar,Teixeira Moura, Rodrigo Savio,et al. Economic, social, and environmental assessment of farming Nile tilapia in net-cages in a reservoir in hot semi-arid region during an extended drought event[J],2022,29(52):78768-78779.
APA	Henry-Silva, Gustavo Gonzaga,da Silva Cacho, Julio Cesar,Teixeira Moura, Rodrigo Savio,Flickinger, Dallas Lee,&Valenti, Wagner C..(2022).Economic, social, and environmental assessment of farming Nile tilapia in net-cages in a reservoir in hot semi-arid region during an extended drought event.ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH,29(52),78768-78779.
MLA	Henry-Silva, Gustavo Gonzaga,et al."Economic, social, and environmental assessment of farming Nile tilapia in net-cages in a reservoir in hot semi-arid region during an extended drought event".ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH 29.52(2022):78768-78779.