Atlantic Salmon (Salmo salar L., 1758) Gut Microbiota Profile Correlates with Flesh Pigmentation: Cause or Effect?

Chan D H Nguyen; Gianluca Amoroso; Tomer Ventura; Jeremiah J Minich; Abigail Elizur

doi:10.1007/s10126-019-09939-1

Back

Journal article

Peer reviewed

Atlantic Salmon (Salmo salar L., 1758) Gut Microbiota Profile Correlates with Flesh Pigmentation: Cause or Effect?

Chan D H Nguyen, Gianluca Amoroso, Tomer Ventura, Jeremiah J Minich and Abigail Elizur

Marine Biotechnology, Vol.22(6), pp.786-804

2020

DOI: https://doi.org/10.1007/s10126-019-09939-1

Files and links (1)

url

https://doi.org/10.1007/s10126-019-09939-1View

Published Version

Abstract

Atlantic salmon

microbiota

flesh color

pigmentation

carotenoids

In Tasmania (Australia), during the marine phase, it has been observed that flesh pigmentation significantly drops in summer, possibly due to high water temperatures (> 20 °C). Although this deleterious effect of summer temperatures has been ascertained, there is a lack of knowledge of the actual mechanisms behind the impaired uptake and/or loss of pigments in Atlantic salmon in a challenging environment. Since the microbial community in the fish intestine significantly changes in relation to the variations of water temperature, this study was conducted to assess how the gut microbiota profile also correlates with the flesh color during temperature fluctuation. We sampled 68 fish at three time points covering the end of summer to winter at a marine farm in Tasmania, Australia. Flesh color was examined in two ways: the average color throughout and the evenness of the color between different areas of the fillet. Using 16S rRNA sequencing of the v3-v4 region, we determined that water temperature corresponded to changes in the gut microbiome both with alpha diversity (Kruskal-Wallis tests P = 0.05) and beta diversity indices (PERMANOVA P = 0.001). Also, there was a significant correlation between the microbiota and the color of the fillet (PERMANOVA P = 0.016). There was a high abundance of Pseudoalteromonadaceae, Enterobacteriaceae, Microbacteriaceae, and Vibrionaceae in the pale individuals. Conversely, carotenoid-synthesizing bacteria families (Bacillaceae, Mycoplasmataceae, Pseudomonas, Phyllobacteriaceae, and Comamonadaceae) were found in higher abundance in individuals with darker flesh color.

Details

Title: Atlantic Salmon (Salmo salar L., 1758) Gut Microbiota Profile Correlates with Flesh Pigmentation: Cause or Effect?
Authors: Chan D H Nguyen (Author) - University of the Sunshine Coast
Gianluca Amoroso (Author) - University of the Sunshine Coast
Tomer Ventura (Author) - University of the Sunshine Coast
Jeremiah J Minich (Author) - University of California, United States
Abigail Elizur (Author) - University of the Sunshine Coast
Publication details: Marine Biotechnology, Vol.22(6), pp.786-804
Publisher: Springer New York LLC
Date published: 2020
DOI: 10.1007/s10126-019-09939-1
ISSN: 1436-2228
Organisation Unit: School of Science and Engineering - Legacy; University of the Sunshine Coast, Queensland; GeneCology Research Centre - Legacy; School of Science, Technology and Engineering; Centre for Bioinnovation
Language: English
Record Identifier: 99450845202621
Output Type: Journal article

Metrics

45 Record Views

35 Times Cited - Web of Science

See more details

InCites Highlights

These are selected metrics from InCites Benchmarking & Analytics tool, related to this output

Collaboration types: Domestic collaboration; International collaboration
Web Of Science research areas: Biotechnology & Applied Microbiology; Marine & Freshwater Biology