Naslov
Bacterial community analysis of marine recirculating aquaculture system bioreactors for complete nitrogen removal established from a commercial inoculum

Autori
Brailo, Marina ; Schreier, Harold J. ; McDonald, Ryan ; Maršić-Lučić, Jasna ; Gavrilović, Ana ; Pećarević, Marijana ; Jug-Dujaković, Jurica

Izvornik
Aquaculture (0044-8486) 503 (2019); 198-206

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Microbial community ; Denitrification ; Illumina MiSeq sequencing ; Nitrification ; Recirculating aquaculture system

Sažetak
An experimental recirculating aquaculture system was constructed under ambient seawater conditions to compare microbial community diversity of nitrifying and denitrifying biofilters that were derived from a commercial inoculum used for aquarium applications. Next generation sequencing revealed distinct and diverse microbial communities in samples analyzed from the commercial inoculant and the denitrification and nitrification biofilters. In all samples, communities were represented by a few dominant operational taxonomic units (OTUs). Bacteria having the capacity to carry out ammonia and nitrite oxidation were more abundant in the nitrification biofilter. Similarly, the proportion of the bacterial taxa known to carry out heterotrophic and autotrophic denitrification and participate in sulfur cycling were found in the denitrification bioreactor, and likely originated from the ambient environmental water source. Our results indicated that environmental seawater can be a favorable enhancement to the bacterial consortium of recirculating aquaculture systems biofilters.

Izvorni jezik
Engleski

Znanstvena područja
Biologija, Interdisciplinarne prirodne znanosti, Biotehnologija, Interdisciplinarne biotehničke znanosti

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