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Gembloux Agro-Bio Tech (GxABT)
Gembloux Agro-Bio Tech (GxABT)
MASTER THESIS
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Taxonomic characterisation of bacteria communities from water of diversified aquaponic systems

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Eck, Mathilde ULiège
Promotor(s) : Jijakli, Haissam ULiège
Date of defense : 24-Aug-2017 • Permalink : http://hdl.handle.net/2268.2/3106
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Title : Taxonomic characterisation of bacteria communities from water of diversified aquaponic systems
Translated title : [fr] Caractérisation taxonomiques des communautés bactériennes présentes dans l'eau de systèmes aquaponiques diversifiés
Author : Eck, Mathilde ULiège
Date of defense  : 24-Aug-2017
Advisor(s) : Jijakli, Haissam ULiège
Committee's member(s) : Beckers, Yves ULiège
Willems, Luc ULiège
Vandenbol, Micheline ULiège
Massart, Sébastien ULiège
Delaide, Boris ULiège
Language : English
Number of pages : 67
Keywords : [en] aquaponics, bacteria communities, bacteria's functions, NGS, 16S rDNA
Discipline(s) : Life sciences > Agriculture & agronomy
Institution(s) : Université de Liège, Liège, Belgique
Degree: Master en bioingénieur : sciences agronomiques, à finalité spécialisée
Faculty: Master thesis of the Gembloux Agro-Bio Tech (GxABT)

Abstract

[en] In 2030, the world’s population should reach 8.3 billion people and 60% of them should live in urban areas. It is thus necessary to develop intensive yet sustainable urban production systems in order to increase cities’ resilience. Aquaponics is defined as a combination of hydroponic and aquaculture techniques and seems to be a promising technology to meet this resilience. It functions with plants, fish and microorganisms which play a key role in nitrification and mineralisation of fish wastes into nutrients absorbable by plants. Herein we aim at characterising the bacteria present in diversified systems to better understand the composition and role of their communities in aquaponics. To this end, nine diversified aquaponic systems were sampled. The DNA from each bacteria community was extracted and sequenced with Illumina MiSeq technology by targeting the V1-V3 16S rDNA region. The sequences were then analysed with the QIIME bioinformatic software. Results show that Proteobacteria and Bacteroidetes are the dominant phyla for all the aquaponic systems. Depending on each system, different proportions of other phyla are also present among the bacterial community. The genera which compose all the identified phyla are more diverse and an important proportion of them are usually found in soils and rhizosphere. One of the roles that could be linked to these genera is the breaking down of complex organic compounds which could be related to the mineralisation phenomenon observed in aquaponic systems. Further studies should be undertaken to identify the exact species present in aquaponic systems and to understand their specific functions.


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Author

  • Eck, Mathilde ULiège Université de Liège > Master bioingé.: sc. agro., à fin.

Promotor(s)

Committee's member(s)

  • Beckers, Yves ULiège Université de Liège - ULg > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Ingénierie des productions animales et nutrition
    ORBi View his publications on ORBi
  • Willems, Luc ULiège Université de Liège - ULg > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
    ORBi View his publications on ORBi
  • Vandenbol, Micheline ULiège Université de Liège - ULg > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Microbial, food and biobased technologies
    ORBi View his publications on ORBi
  • Massart, Sébastien ULiège Université de Liège - ULg > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
    ORBi View his publications on ORBi
  • Delaide, Boris ULiège Université de Liège - ULg > Agronomie, Bio-ingénierie et Chimie (AgroBioChem) > Gestion durable des bio-agresseurs
    ORBi View his publications on ORBi
  • Total number of views 334
  • Total number of downloads 646










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