Efficiency of bioaugmentation in the removal of organic matter in aquaculture systems

Lopes, Ruy Bessa; Olinda, Ricardo Alves de; Souza, B. A. I; Cyrino, José Eurico Possebon; Dias, Carlos Tadeu dos Santos; Queiroz, J. F. de; Sipaúba-Tavares, Lúcia Helena

doi:10.1590/s1519-69842011000300010

Cited by 7 publications

(2 citation statements)

References 18 publications

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“…For aquaculture, little is known regarding the interactions between antimicrobials, water quality and microbial communities in brackish fish culture ponds. Bacteria that can decompose organic pollutants in the culture water can be used as beneficial bacteria for aquaculture [34][35][36]. Study of Chang et al (2019) demonstrated that the addition of sulfamethoxazole (SMX) decreased the abundance of ammonia-oxidizing bacteria (AOB), nitrite-oxidizing bacteria (NOB) and photosynthetic bacteria in milkfish culture ponds.…”

Section: Introductionmentioning

confidence: 99%

Effects of Malachite Green on the Microbiomes of Milkfish Culture Ponds

Yang¹,

Chang²,

Hsieh³

et al. 2021

Water

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Intensive fish farming through aquaculture is vulnerable to infectious diseases that can increase fish mortality and damage the productivity of aquaculture farms. To prevent infectious diseases, malachite green (MG) has been applied as a veterinary drug for various microbial infections in aquaculture settings worldwide. However, little is known regarding the consequences of MG and MG-degrading bacteria (MGDB) on microbial communities in milkfish culture ponds (MCPs). In this study, small MCPs were used as a model system to determine the effects of MG on the microbial communities in MCPs. The addition of MG led to cyanobacterial blooms in the small MCP. The addition of MGDB could not completely reverse the effects of MG on microbial communities. Cyanobacterial blooms were not prevented. Microbial communities analyzed by next generation sequencing revealed that cyanobacterial blooms may be due to increase of nitrogen cycle (including nitrogen fixation, nitrate reduction and anammox) associated microbial communities, which raised the levels of ammonium in the water of the small MCP. The communities of anoxygenic phototrophic bacteria (beneficial for aquaculture and aquatic ecosystems) decreased after the addition of MG. The results of this investigation provide valuable insights into the effects of MG in aquaculture and the difficulties of bioremediation for aquatic environments polluted by MG.

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Section: Introductionmentioning

confidence: 99%

Effects of Malachite Green on the Microbiomes of Milkfish Culture Ponds

Yang¹,

Chang²,

Hsieh³

et al. 2021

Water

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“…The first are bacteria that can maintain water quality, such as nitrifying bacteria [6,7]. The second are bacteria for bioaugmentation that are involved in the removal of organic pollutants from water [8][9][10]. The third are gut probiotics for cultured animals [11,12].…”

Section: Introductionmentioning

confidence: 99%

Investigation of a Farm-scale Multitrophic Recirculating Aquaculture System with the Addition of Rhodovulum sulfidophilum for Milkfish (Chanos chanos) Coastal Aquaculture

et al. 2019

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Globally, coastal aquaculture is growing due to the large demand for marine products. Specific impacts caused by coastal aquaculture on the environment include the discharge of culture farm effluents, stress on ground water (the absence of recycling), nutrient pollution, and diseases of cultured animals. Three methods, integrated multitrophic aquaculture (IMTA), recirculating aquaculture system (RAS), and beneficial bacteria for aquaculture, have been developed to solve these problems. In this study, the advantages of IMTA and RAS were integrated to develop a novel multitrophic recirculating aquaculture system (MRAS) to adapt to the farm-scale culturing of milkfish (Chanos chanos). The photosynthetic bacteria Rhodovulum sulfidophilum was added to enhance the performance of the farm-scale milkfish MRAS. This setting could promote growth of beneficial bacteria, such as the nitrogen cycle-associated microbial community and the anoxygenic phototrophic Acidobacteria community. The ammonia level was reduced, and the total phosphorous level was stable in the water recycled in the MRAS. The cyanobacteria, algae, Vibrio, Escherichia, and other potential pathogenic bacteria communities were inhibited in the MRAS. This study provides an effective design of a water recycling aquaculture system. Milkfish, Asian tiger shrimp (Penaeus monodon), Asian hard clam (Meretrix lusoria), and seaweed (Gracilaria sp.) can be cultured and simultaneously produced in the system.

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