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首页> 外文期刊>Environmental research >Analysis of potential risks from the bacterial communities associated with air-contact surfaces from tilapia (Oreochromis niloticus) fish farming
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Analysis of potential risks from the bacterial communities associated with air-contact surfaces from tilapia (Oreochromis niloticus) fish farming

机译：罗非鱼（Oreochromis niloticus）养鱼业与空气接触表面相关的细菌群落的潜在风险分析

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摘要

Tilapia farming is a promising growing sector in aquaculture. Yet, there are limited studies on microbiological risks associated to tilapia farms. The aim of the present study was to analyse the bacterial communities from solid surfaces in contact with air in a tilapia farm in order to evaluate the presence of bacteria potentially toxinogenic or pathogenic to humans or animals. Samples from a local tilapia farm (tank wall, aerator, water outlets, sink and floor) were analyzed by high throughput sequencing technology. Sequences were assigned to operational taxonomic units (OTUs). Proteobacteria was the main phylum represented in most samples (except for one). Cyanobacteria were a relevant phylum in the inner wall from the fattening tank and the wet floor by the pre-fattening tank. Bacteroidetes were the second phylum in relative abundance for samples from the larval rearing tank and the pre-fattening tank and one sample from the fattening tank. Fusobacteria showed highest relative abundances in samples from the larval rearing tank and pre-fattening tank. Other phyla (Verrucomicrobia, Actinobacteria, Firmicutes, Plcmktomycetes, Acidobacteria, Chloroflexi, ChLorobi, Gemmatiomonadetes or Fibrobacters) had lower relative abundances. A large fraction of the reads (ranging from 43.67% to 72.25%) were assigned to uncultured bacteria. Genus Acinetobacter (mainly A. calcoaceacus/bau-manni) was the predominant OTU in the aerator of the fattening tank and also in the nearby sink on the floor. The genera Cetobacterium and Bacteroides showed highest relative abundances in the samples from the larval rearing tank and the pre-fattening tank. Genera including fish pathogens (Fusobacterium, Aeromonas) were only detected at low relative abundances. Potential human pathogens other than Acinetobacter were either not detected or had very low relative abundances (< 0.01%). The results of the study suggest that the main risk factors to be monitored in tilapia farm are putative human pathogenic Acinetobacter and potential cyanotoxin-producing cyanobacteria.
机译：罗非鱼养殖是水产养殖中一个有前途的增长部门。然而，关于罗非鱼养殖场相关微生物风险的研究很少。本研究的目的是分析罗非鱼养殖场中与空气接触的固体表面上的细菌群落，以评估可能对人或动物有毒或致病的细菌的存在。通过高通量测序技术分析了当地罗非鱼养殖场（水箱壁，曝气机，出水口，水槽和地板）的样品。将序列分配给操作分类单位（OTU）。变形杆菌是大多数样品（除了一个）中代表的主要门。蓝细菌是增肥池内壁和预肥槽内湿地板上的相关门。拟杆菌属是相对丰富的第二种门，分别来自幼体饲养池和预肥育池的样品以及育肥池的一个样品。在幼体饲养池和育肥前池的样品中，梭菌属的相对丰度最高。其他门（疣状微菌，放线菌，硬毛菌，毛霉菌，嗜酸菌，弯弯曲菌，Chrobrobi，芽孢杆菌或纤维杆菌）的相对丰度较低。大部分读数（范围从43.67％到72.25％）分配给未培养的细菌。不动杆菌属（主要是钙曲霉/鲍曼尼）是增肥池曝气器和地板附近水槽中主要的OTU。在幼虫饲养池和增肥前池的样品中，杆菌属和拟杆菌属的相对丰度最高。仅以相对较低的丰度检测到包括鱼类病原体（融合细菌，气单胞菌）的属。未检测到除不动杆菌以外的潜在人类病原体或相对丰度非常低（<0.01％）。研究结果表明，在罗非鱼养殖场中要监测的主要危险因素是推定的人类致病性不动杆菌和潜在的产生蓝​​毒素的蓝细菌。

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  • 来源
    《Environmental research》 |2018年第1期|385-390|共6页
  • 作者

    Maria Jose Grande Burgos; Jose Luis Romero; Ruben Perez Pulido; Antonio Cobo Molinos; Antonio Galvez; Rosario Lucas;

  • 作者单位

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

    Area de Microbiologia, Departamento de Ciencias de la Salud, Facultad de Ciencias Experimentales, Universidad de Jaen, 23071 Jaen, Spain;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Tilapia; Aquaculture; Bacterial diversity; Microbiological risks;

    机译：罗非鱼;水产养殖;细菌多样性;微生物风险;

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