Aquaculture Journal, Journal Year: 2024, Volume and Issue: 4(4), P. 270 - 282

Published: Oct. 16, 2024

European sea bass (Dicentrarchus labrax) is one of the most significant species farmed in Mediterranean, yet a very perishable product. Its quality deteriorates rapidly as result three mechanisms: microbial activity, chemical oxidation, and enzymatic degradation. Microbial spoilage mechanism that contributes to deterioration fresh non-processed fish. To this end, our study aims identify for first time combined effect aquatic environment harvest method on composition trajectory at storage 0 °C skin microbiome. Sampling was performed two commercial fish farms Western (WG) Central Greece (CG) where were harvested using different methods: direct immersion ice water or mixture slurry ice; application electro-stunning prior water. Samples collected day week post-harvest. profile bacterial communities skin, 16S ribosomal RNA gene sequencing used. The results following analyses indicated shaped original microbiome, with 815 ASVs identified WG farm opposed 362 CG farm. Moreover, Pseudomonas Pseudoalteromonas dominated microbiome farm, unlike Shewanella Psychrobacter dominant genera. All these genera contain such putrefaciens, aeruginosa, spp., sp., all which have been implicated final methods drove variations already by environment, favoring more diversity combination appeared determine °C. Although had samples post-harvest, relative abundance strongly influenced method. This sheds light hierarchy factors shaping their importance controlling post-harvest

Language: Английский