@misc{10481/71519,
year = {2021},
month = {10},
url = {http://hdl.handle.net/10481/71519},
abstract = {Studies that characterize the microbial communities in wastewater treatment plants (WWTPs) are numerous, yet
similar studies in industrial WWTPs treating fish-canning effluents are limited. The microbial communities in
samples of 4 fish-canning WWTPs that operated under different NaCl concentrations were investigated by qPCR
and partial 16S rRNA gene Illumina sequencing. The absolute abundances of key microbial populations (Total
Bacteria, Archaea and Fungi, ammonium oxidizing bacteria (AOB), Mycolata, Candidatus Microthrix, Ca. Accumulibacter
and Ca. Competibacter) presented statistical differences among the WWTPs. The NaCl concentration
negatively affected the absolute abundance of Bacteria and Fungi, filamentous, and phosphate (PAO) and
glycogen (GAO) accumulating bacteria, while AOB and Ca. Microthrix populations were statistically higher in
the WWTP with higher NaCl contents. On the other hand, the main bacterial operational taxonomic units (OTUs)
were classified as members of Kouleothrix (Chloroflexia, Chloroflexi) and Tetrasphaera (Actinomycetia, Actinobacteria),
family Beijerinckiaceae (Alphaproteobacteria, Proteobacteria), order Betaproteobacteriales (Gammaproteobacteria,
Proteobacteria), Sphingobacteriales (Sphingobacteriia, Bacteroidetes) and Frankiales (Actinobacteria,
Actinobacteria), class Anaerolineae (Chloroflexi), phylum Chloroflexi and Bacteria_unclassified. The structure of the
bacterial community was highly dissimilar among the 4 WWTPs, as the identities of the dominant OTUs differed
significantly among them. Therefore, the individual characteristics of the different WWTPs, mainly NaCl concentration,
were responsible for the narrow assemblage of the bacterial communities. Different OTUs belonging
to the phyla Actinobacteria, Bacteroidetes, Chloroflexi, Gemmatimonadetes and Proteobacteria were revealed as salttolerant.
Taking into account these results, NaCl content was an important driver of the abundance of microbial
populations and the bacterial community structure in the analysed industrial facilities.},
organization = {Spanish Government (Spanish Ministry of Science and Innovation)	CTQ2017-83225-C2-1-R	
CTQ2017-83225-C2-2-R},
organization = {European Commission},
organization = {Galician Competitive Research Group	GRC-ED431C 2017-29},
organization = {CRETUS Strategic Partnership	ED431E 2018/01},
publisher = {Elsevier},
keywords = {Fish-canning WWTP},
keywords = {qPCR},
keywords = {Bacterial diversity},
keywords = {Halophilic bacteria},
title = {Revealing the dissimilar structure of microbial communities in different WWTPs that treat fish-canning wastewater with different NaCl content},
doi = {10.1016/j.jwpe.2021.102328},
author = {Correa Galeote, David and Juárez Jiménez, María José Belén and González López, Jesús Juan and Rodelas González, María Belén},
}