Abstract
Bacterial diversity in a seawater recirculating aquaculture
system (RAS) was investigated using 16S rRNA amplicon
sequencing to understand the roles of bacterial communities
in the system. The RAS was operated at nine different combinations
of temperature (15°C, 20°C, and 25°C) and salinity
(20‰, 25‰, and 32.5‰). Samples were collected from five
or six RAS tanks (biofilters) for each condition. Fifty samples
were analyzed. Proteobacteria and Bacteroidetes were most
common (sum of both phyla: 67.2% to 99.4%) and were inversely
proportional to each other. Bacteria that were present
at an average of ≥ 1% included Actinobacteria (2.9%) Planctomycetes
(2.0%), Nitrospirae (1.5%), and Acidobacteria (1.0%);
they were preferentially present in packed bed biofilters, mesh
biofilters, and maturation biofilters. The three biofilters showed
higher diversity than other RAS tanks (aerated biofilters, floating
bed biofilters, and fish tanks) from phylum to operational
taxonomic unit (OTU) level. Samples were clustered
into several groups based on the bacterial communities. Major
taxonomic groups related to family Rhodobacteraceae and
Flavobacteriaceae were distributed widely in the samples. Several
taxonomic groups like [Saprospiraceae], Cytophagaceae,
Octadecabacter, and Marivita showed a cluster-oriented distribution.
Phaeobacter and Sediminicola-related reads were
detected frequently and abundantly at low temperature. Nitrifying
bacteria were detected frequently and abundantly in
the three biofilters. Phylogenetic analysis of the nitrifying bacteria
showed several similar OTUs were observed widely
through the biofilters. The diverse bacterial communities and
the minor taxonomic groups, except for Proteobacteria and
Bacteroidetes, seemed to play important roles and seemed
necessary for nitrifying activity in the RAS, especially in packed
bed biofilters, mesh biofilters, and maturation biofilters.
Citations
Citations to this article as recorded by

- Bacterial community in African catfish (Clarias gariepinus) recirculating aquaculture systems under different stocking densities
Júlia Clols-Fuentes, Julien A. Nguinkal, Patrick Unger, Bernd Kreikemeyer, Harry W. Palm
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Xuda Wang, Shilei Li, Ying Dong, Rui Mi, Jingwei Jiang, Xiaoyan Guan, Bo Ye, Guiying Liu, Zhenjun Zhao, Danni Liu, Zhong Chen, Xuewen Gao, Chenyu Zhang, Zunchun Zhou, Liqiao Chen
Aquaculture Research.2023; 2023: 1. CrossRef - A Review of Bubble Aeration in Biofilter to Reduce Total Ammonia Nitrogen of Recirculating Aquaculture System
Putu Ayustin Suriasni, Ferry Faizal, Camellia Panatarani, Wawan Hermawan, I Made Joni
Water.2023; 15(4): 808. CrossRef - Seasonal Dynamics of Marine Bacterial Communities in Aquaculture Farms: The case of the Northern Ionian Coastal Ecosystem (Mediterranean Sea)
Maria Kyritsi, Antiopi Tsoureki, Konstantinos Koukaras, Nikolaos Kamidis, Grigorios Krey, Sofia Michailidou, Anagnostis Argiriou
Journal of Marine Science and Engineering.2023; 11(7): 1332. CrossRef - Seasonal and Spatial Variations of Bacterial Community Structure in the Bailang River Estuary
Wenxun Dong, Zhengguo Cui, Mengjuan Zhao, Junfeng Li
Journal of Marine Science and Engineering.2023; 11(4): 825. CrossRef - Microalgae simultaneously promote antibiotic removal and antibiotic resistance genes/bacteria attenuation in algal-bacterial granular sludge system
Wenhao Liu, Wenli Huang, Zhenhua Cao, Yuan Ji, Dongfang Liu, Weiwei Huang, Yanjing Zhu, Zhongfang Lei
Journal of Hazardous Materials.2022; 438: 129286. CrossRef - Abundance and Diversity of Nitrifying Microorganisms in Marine Recirculating Aquaculture Systems
Qintong Li, Ryo Hasezawa, Riho Saito, Kunihiro Okano, Kazuya Shimizu, Motoo Utsumi
Water.2022; 14(17): 2744. CrossRef - Dynamic changes in the microbial community in the surface seawater of Jiaozhou Bay after crude oil spills: An in situ microcosm study
Yumiao Zhou, Qiang Kong, Xinyu Zhao, Zhihao Lin, Huanxin Zhang
Environmental Pollution.2022; 307: 119496. CrossRef - Endosymbiotic microbes from entomopathogenic nematode (EPNs) and their applications as biocontrol agents for agro-environmental sustainability
Preety Tomar, Neelam Thakur, Ajar Nath Yadav
Egyptian Journal of Biological Pest Control.2022;[Epub] CrossRef - Pikeienuella piscinae gen. nov., sp. nov., a novel genus in the family Rhodobacteraceae
Jeeeun Park, Young-Sam Kim, Seong-Jin Kim, Sang-Eon Kim, Hyun-Kyoung Jung, Min-Ju Yu, Young Jae Jeon, Kyoung-Ho Kim
Journal of Microbiology.2021; 59(6): 546. CrossRef - Temporal dynamics of bacterial communities in the water and sediments of sea cucumber (Apostichopus japonicus) culture ponds
Zelong Zhao, Jingwei Jiang, Yongjia Pan, Ying Dong, Zhong Chen, Gaohua Zhang, Shan Gao, Hongjuan Sun, Xiaoyan Guan, Bai Wang, Yao Xiao, Zunchun Zhou
Aquaculture.2020; 528: 735498. CrossRef - Pukyongia salina gen. nov., sp. nov., a novel genus in the family Flavobacteriaceae
Young-Sam Kim, Seong-Jin Kim, Yeon Hee Jang, Kyoung-Ho Kim
Journal of Microbiology.2020; 58(6): 456. CrossRef - Integration of Marine Macroalgae (Chaetomorpha maxima) with a Moving Bed Bioreactor for Nutrient Removal from Maricultural Wastewater
Xian Li, Yale Deng, Xueying Li, Xiaona Ma, Jinxia Wang, Jun Li
Archaea.2020; 2020: 1. CrossRef - Nitrogen Removal Characteristics in a Biofilm System for Recirculating Aquaculture Wastewater Treatment under High-Salinity Conditions and Oligotrophic Stress
Lijuan Feng, Yuqin Luo, Jingyi Yang, Jingya Sun
Journal of Environmental Engineering.2020;[Epub] CrossRef - Taxonomic and functional profiling of nitrifying biofilms in freshwater, brackish and marine RAS biofilters
Jennifer Hüpeden, Bernd Wemheuer, Daniela Indenbirken, Carsten Schulz, Eva Spieck
Aquacultural Engineering.2020; 90: 102094. CrossRef - Characteristics of Ammonia Removal and Nitrifying Microbial Communities in a Hybrid Biofloc-RAS for Intensive Litopenaeus vannamei Culture: A Pilot-Scale Study
Wujie Xu, Yu Xu, Haochang Su, Xiaojuan Hu, Keng Yang, Guoliang Wen, Yucheng Cao
Water.2020; 12(11): 3000. CrossRef - Improved health and better survival of farmed lumpfish (Cyclopterus lumpus) after a probiotic bath with two probiotic strains of Aliivibrio
Øystein Klakegg, Siri Myhren, Rosemary Alice Juell, Marit Aase, Kira Salonius, Henning Sørum
Aquaculture.2020; 518: 734810. CrossRef - Microbial valorization of solid wastes from a recirculating aquaculture system and the relevant microbial functions
Jinhwan Lee, In-Soo Kim, Aalfin Emmanuel, Sung-Cheol Koh
Aquacultural Engineering.2019; 87: 102016. CrossRef - Tilapia recirculating aquaculture systems as a source of plant growth promoting bacteria
Francia A. Sanchez, Valerie R. Vivian‐Rogers, Hidetoshi Urakawa
Aquaculture Research.2019; 50(8): 2054. CrossRef - Oil Hydrocarbon Degradation by Caspian Sea Microbial Communities
John I. Miller, Stephen Techtmann, Julian Fortney, Nagissa Mahmoudi, Dominique Joyner, Jiang Liu, Scott Olesen, Eric Alm, Adolfo Fernandez, Piero Gardinali, Nargiz GaraJayeva, Faig S. Askerov, Terry C. Hazen
Frontiers in Microbiology.2019;[Epub] CrossRef - Effects of water recirculation rate on the microbial community and water quality in relation to the growth and survival of white shrimp (Litopenaeus vannamei)
Zhao Chen, Zhiqiang Chang, Long Zhang, Yuli Jiang, Hongxing Ge, Xiefa Song, Shibo Chen, Fazhen Zhao, Jian Li
BMC Microbiology.2019;[Epub] CrossRef - Addition of commercial probiotic in a biofloc shrimp farm of Litopenaeus vannamei during the nursery phase: Effect on bacterial diversity using massive sequencing 16S rRNA
José Alberto Huerta-Rábago, Marcel Martínez-Porchas, Anselmo Miranda-Baeza, Mario Nieves-Soto, Martha Elisa Rivas-Vega, Luis Rafael Martínez-Córdova
Aquaculture.2019; 502: 391. CrossRef - Enhanced nitrate reduction in water by a combined bio-electrochemical system of microbial fuel cells and submerged aquatic plant Ceratophyllum demersum
Peng Xu, Enrong Xiao, Junmei Wu, Feng He, Yi Zhang, Zhenbin Wu
Journal of Environmental Sciences.2019; 78: 338. CrossRef - Bacterial community composition in a polyculture system ofRhopilema esculenta,Penaeus monodonandRuditapes philippinarum
Zelong Zhao, Xiaoyan Guan, Bai Wang, Ying Dong, Zunchun Zhou
Aquaculture Research.2019; 50(3): 973. CrossRef -
Salaquimonas pukyongi gen. nov., sp. nov., a novel bacterium within the family Phyllobacteriaceae
Young-Sam Kim, Young Jae Jeon, Kyoung-Ho Kim
International Journal of Systematic and Evolutionary Microbiology
.2019; 69(12): 3751. CrossRef - Effects of abrupt salinity increase on nitrification processes in a freshwater moving bed biofilter
John Peter Hewa Kinyage, Per Bovbjerg Pedersen, Lars-Flemming Pedersen
Aquacultural Engineering.2019; 84: 91. CrossRef - Ammonia-oxidizing bacteria and archaea within biofilters of a commercial recirculating marine aquaculture system
Zhitao Huang, Yuli Jiang, Xiefa Song, Eric Hallerman, Lei Peng, Dengpan Dong, Teng Ma, Jieming Zhai, Wensheng Li
AMB Express.2018;[Epub] CrossRef - Internal nitrogen removal from sediments by the hybrid system of microbial fuel cells and submerged aquatic plants
Peng Xu, En-Rong Xiao, Dan Xu, Yin Zhou, Feng He, Bi-Yun Liu, Lei Zeng, Zhen-Bin Wu, Andrew C Singer
PLOS ONE.2017; 12(2): e0172757. CrossRef - Freshwater Recirculating Aquaculture System Operations Drive Biofilter Bacterial Community Shifts around a Stable Nitrifying Consortium of Ammonia-Oxidizing Archaea and Comammox Nitrospira
Ryan P. Bartelme, Sandra L. McLellan, Ryan J. Newton
Frontiers in Microbiology.2017;[Epub] CrossRef - Longterm Monitoring of Nitrification and Nitrifying Communities during Biofilter Activation of Two Marine Recirculation Aquaculture Systems (RAS)
Spieck Eva
International Journal of Aquaculture and Fishery Sciences.2017; : 051. CrossRef