Economics of Small‐scale Commercial Aquaponics in Hawai‘i
Economics of Small‐scale Commercial Aquaponics in Hawai‘i
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夏威夷小型商业鱼菜共生经济
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
P. Leung
中科院分区：
文献类型：
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作者：
Kanae Tokunaga;C. Tamaru;H. Ako;P. Leung
鱼菜共生，水产养殖和水培的共生整合，已被吹捧为一种可持续的粮食生产技术。虽然有轶事证据，但只有少数关于商业鱼菜共生经济学的研究。在这项研究中，我们收集了三个鱼菜共生农场的经济和生产信息，以调查在夏威夷的鱼菜共生产业的经济可行性。根据农场提供的信息，我们开发了一个模型案例来分析（一）盈利能力，（二）投资回报率，（三）投入要求的小规模商业鱼菜共生操作在夏威夷。我们发现，小规模的商业化鱼菜共生在经济上是可行的，但我们的研究结果并不像以前发表的那样乐观。模型农场的修正内部收益率为7.36%。我们进行敏感性和决策逆转分析，以调查产出价格和运营成本参数如何影响整体经济结果。我们发现，经济产出对产出价格非常敏感。如果年销售收入下降福尔斯11%，就无法支持对商业鱼菜共生的投资。最后，我们讨论了商业鱼菜共生农场面临的挑战和风险，以及有机认证和可再生能源实施的潜在经济收益。
Aquaponics, the symbiotic integration of aquaculture and hydroponics, has been touted as a sustainable food production technology. While there is anecdotal evidence, there are only a few studies on the economics of commercial aquaponics. In this study, we collect economic and production information from three aquaponic farms to investigate the economic feasibility of an aquaponics industry in Hawaii. Based on the information supplied by the farms, we develop a model case to analyze (i) profitability, (ii) return on investment, and (iii) input requirements for small-scale commercial aquaponics operation in Hawaii. We find that small-scale commercial aquaponics is economically feasible, but our findings are not as optimistic as those previously published. The modified internal rate of return of the model farm is 7.36%. We conduct sensitivity and decision reversal analysis to investigate how output prices and operational cost parameters affect the overall economic outcome. We find that economic outcome is very sensitive to output price. Investment in commercial aquaponics cannot be supported if annual sales revenue falls by 11%. We conclude by discussing challenges and risks faced by commercial aquaponic farms and the potential economic gain from organic certification and renewable energy implementation.