Nutrient removal ability and economical benefit of a rice-fish co-culture system in aquaculture pond

Feng, Jing; Li, Fengbo; Zhou, Xiyue; Xu, Chenping; Fang, Fuping

doi:10.1016/j.ecoleng.2016.06.002

Cited by 63 publications

(24 citation statements)

References 23 publications

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“…Feng et al . 3 found that total N and P, available P, ammonium N and nitrate N were lower in a rice-fish system than in a traditional aquaculture system, with production net profit increased by 114.48%. In a more complex rice-crab-fish system, methane emissions were reduced by 22−54% with a high water depth and active soil respiration 13 .…”

Section: Introductionmentioning

confidence: 93%

“…Therefore, maintaining fungal species diversity is critical for the delivery of sustainable agricultural production systems. While a range of factors may affect fungal diversity, crop planting pattern and nutrient management are likely to be the most important drivers due to their impacts on productivity and nutrient levels 3,14,15 . Long-term N application may affect the activity and community structure of soil microbes, and the ratio of bacteria to fungi, by altering soil physical and chemical properties, such as soil pH and available N content 6,16 .…”

Section: Introductionmentioning

confidence: 99%

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Effect of nitrogen application rate on soil fungi community structure in a rice-fish mutualistic system

Cai

Zhu

et al. 2019

Sci Rep

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Rice-fish mutualistic production systems rationalise the use of water and soil resources in an improved approach to sustainable food production. However, drivers of fungi community structure in paddy soil, including effects of nitrogen (N) application rate, are unclear in these systems. Here, we assessed soil fungi community and soil physicochemical responses in paddy soil to contrasting rates of N application in a rice-fish system. To clarify the mutualistic effects, the rice-fish system was compared with a standard rice monoculture under a 325.5 kg ha−1 N application rate. The results showed that N application rate affected abundance of paddy soil fungi (P < 0.05). Alpha diversity and richness of fungi were lower in the rice-fish system, but evenness increased with a decrease in N application rate, while the rate of N determined diversity of soil fungi in the rice-fish system. Dominant genera in the two systems differed, and soil physicochemical properties were more important drivers of soil fungi community structure in the rice-fish mutualistic system than in rice monoculture. Total N, available N and P regulated the abundance of dominant fungi. Our results indicate that management of soil fungi may contribute to sustainable agricultural production.

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Section: Introductionmentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Effect of nitrogen application rate on soil fungi community structure in a rice-fish mutualistic system

Cai

Zhu

et al. 2019

Sci Rep

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“…The chlorophyll was extracted by DMF, which could be directly determined according to the absorbance after being kept away from light for 12 h [27]. Dissolved inorganic nitrogen (DIN, the sum of ammonium nitrogen (NH 4+ -N), nitrate nitrogen (NO 3--N) and nitrite nitrogen (NO 2--N)) were determined by an automatic continuous flow analyzer (AA3, SEAL) [28]. In order to detect the emergence of ARGs in aquaculture wastewater, 1500 mL water samples were filtered by a 0.22 µm filter membrane; then, DNA was extracted by DNA extraction kit (Chengdu Foregene Biotechnology Co., Ltd, Chengdu, China).…”

Section: Sampling and Chemical Analysismentioning

confidence: 99%

Evaluation and Analysis of Water Quality of Marine Aquaculture Area

Zhang

et al. 2020

IJERPH

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In the rapid development of marine aquaculture, the water quality of aquatic environments is regarded as a main limiting factor. Therefore, it is necessary to assess the water quality and environmental conditions in marine aquaculture areas and find out the main influencing factors regarding damage to the water quality environment. In the present research, pond aquaculture and cage aquaculture areas were sampled in May, August and November in 2018. Nine water quality indicators were detected, including pH, temperature, salinity, dissolved oxygen, molybdate-reactive phosphorus, chemical oxygen demand, chlorophyll a, inorganic nitrogen and antibiotic resistance genes (ARGs). Principal component analysis (PCA) was used to analyze the water quality conditions, spatial–temporal changes, and the driving factors in pond and cage aquaculture areas. The results showed that three main components were extracted from the pond aquaculture area, which explained 66.82% of the results, the most relevant factors are salinity, dissolved oxygen and ARGs. For the cage aquaculture area, three main components were extracted which can account for 72.99% of the results, the most relevant factors are chlorophyll a, salinity and dissolved oxygen. The comprehensive scores of the principal components indicated that the heaviest polluted months in pond and aquaculture areas were August and November, respectively. The water quality of the pond aquaculture area is mainly limited by the volume of the pond, while aquaculture activities and seasonality are the main factors for cage aquaculture. ARGs in cage culture areas showed more variety and frequency compared with pond culture areas, which indicated that terrestrial input might be one of the sources for ARGs occurrence. The results would be helpful for the relevant authorities to select water quality monitoring parameters in marine aquaculture areas.

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“…In RAS where C:N ratios increase due to availability of organic matter, denitrifying bacteria, especially Pseudomonas sp., use carbon as an electron donor in anoxic conditions, to produce N 2 at the expense of nitrate (Schreier et al 2010;Wongkiew et al 2017). Biofloc systems are sometimes used to augment feed for fish (Crab et al 2012;Martínez-Córdova et al 2015), and biofloc is increasingly being used in aquaponics system, especially in Asia (Feng et al 2016;Kim et al 2017;Li et al 2018). When biofloc is used in aquaponics (da Rocha et al 2017;Pinho et al 2017), nutrient cycling becomes even more complex given that DO, temperature and pH influence whether heterotrophic (carbon-utilizing) microbial communities predominate over autotrophic denitrifiers that are capable of reducing sulphide to sulphate (Schreier et al 2010).…”

Section: Bacterial Roles In Nutrient Cycling and Bioavailabilitymentioning

confidence: 99%

Bacterial Relationships in Aquaponics: New Research Directions

Joyce

Timmons

Goddek³

et al. 2019

Aquaponics Food Production Systems

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The growth rates and welfare of fish and the quality of plant production in aquaponics system rely on the composition and health of the system's microbiota. The overall productivity depends on technical specifications for water quality and its movement amongst components of the system, including a wide range of parameters including factors such as pH and flow rates which ensure that microbial components can act effectively in nitrification and remineralization processes. In this chapter, we explore current research examining the role of microbial communities in three units of an aquaponics system: (1) the recirculating aquaculture system (RAS) for fish production which includes biofiltration systems for denitrification; (2) the hydroponics units for plant production; and (3) biofilters and bioreactors, including sludge digester systems (SDS) involved in microbial decomposition and recovery/ remineralization of solid wastes. In the various sub-disciplines related to each of these components, there is existing literature about microbial communities and their importance within each system (e.g. recirculating aquaculture systems (RAS), hydroponics, biofilters and digesters), but there is currently limited work examining interactions between these components in aquaponics system, thus making it an important area for further research.

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Nutrient removal ability and economical benefit of a rice-fish co-culture system in aquaculture pond

Cited by 63 publications

References 23 publications

Effect of nitrogen application rate on soil fungi community structure in a rice-fish mutualistic system

Effect of nitrogen application rate on soil fungi community structure in a rice-fish mutualistic system

Evaluation and Analysis of Water Quality of Marine Aquaculture Area

Bacterial Relationships in Aquaponics: New Research Directions

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