Abstract
As an environmentally-friendly aquaculture and planting system, aquaponics has attracted attention in various fields, such as fisheries, agriculture, and ecology. The existing review qualitatively described the development and challenges of aquaponics but lacked data support. This study selected 513 related documents (2000–2019) in the Web of Science database (WOS) to mine and quantitatively analyze its text data. The keyword co-occurrence network shows that the current aquaponics research mainly focuses on the system components, wastewater treatment, nutrient management, and system production. Research areas reflect obvious regional characteristics. China, the United States and Europe are dedicated to the application of new technologies, the optimization of system production, and the exploration of multiple roles. At present, the aquaponics development is facing many pressures from management and market. Future research requires more in-depth research in the system construction, nutrient management, and microbial community structure to provide a theoretical basis. Moreover, the identity construction within the conceptual framework of green infrastructure is a research direction worth exploring to solve low social recognition for aquaponics.
Highlights
In order to meet human demand for aquatic products, total global aquatic production increased by 27.5% in 2010–2018, during which aquaculture and capture output increased by 29.8% and 10.4%, respectively (FAO, 2018)
Several researchers summarized the challenge of aquaponics development, there are two major issues need to be solved urgently: (1) The operation and maintenance of aquaponics need more strategy [39] because insecticides and antibiotics cannot be used in aquaponics, it is difficult to prevent fish and plants from disease and pests [14]
Aquaponics research mainly focuses on the system components, wastewater treatment, nutrient management, and system production
Summary
In order to meet human demand for aquatic products, total global aquatic production increased by 27.5% in 2010–2018, during which aquaculture and capture output increased by 29.8% and 10.4%, respectively (FAO, 2018). The cycle of water and nutrients improves the efficiency of water use [11], realizes the reuse of aquaculture wastewater [12], and avoids the environmental pollution caused by traditional fisheries. Aquaponics has gotten rid of the dependence on the land and can be constructed under different scales and environmental conditions. It has attractive potential for aquaculture and urban agriculture [13]. Modern aquaponics is mainly classified according to different hydroponic form and the fact that the water cycle is closed or not. Hydroponic types, fish and plant density [17], flow rate, water quality parameter, feeding and planting strategies are important factors affecting yield. In this paper, mining the related research region, research areas, keywords and other literature text data was carried out first, and co-occurrence analysis and cluster analysis were applied to clarify the current situation and trend of aquaponics research
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