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Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species

Intensive freshwater aquaculture in the Spring Valley, Israel, is implemented mainly in earthen fishponds and reservoirs that are stocked with a variety of edible fish species. Here we sampled six different healthy fish species from these intensive aquacultures. The fish were hybrid striped bass, Eu...

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Autores principales: Ofek, Tamir, Lalzar, Maya, Laviad-Shitrit, Sivan, Izhaki, Ido, Halpern, Malka
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8689067/
https://www.ncbi.nlm.nih.gov/pubmed/34950115
http://dx.doi.org/10.3389/fmicb.2021.760266
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author Ofek, Tamir
Lalzar, Maya
Laviad-Shitrit, Sivan
Izhaki, Ido
Halpern, Malka
author_facet Ofek, Tamir
Lalzar, Maya
Laviad-Shitrit, Sivan
Izhaki, Ido
Halpern, Malka
author_sort Ofek, Tamir
collection PubMed
description Intensive freshwater aquaculture in the Spring Valley, Israel, is implemented mainly in earthen fishponds and reservoirs that are stocked with a variety of edible fish species. Here we sampled six different healthy fish species from these intensive aquacultures. The fish were hybrid striped bass, European bass, red drum (all carnivores), hybrid tilapia, flathead grey mullet (both herbivores), and common carp (an omnivore). Significant differences were found among the intestinal microbiota of the six studied fish species. The microbiota composition diversity was strongly related to the trophic level of the fish, such that there was a significant difference between the carnivore and the herbivore species, while the omnivore species was not significantly different from either group. The most abundant genus in the majority of the fishes’ intestinal microbiota was Cetobacterium. Furthermore, we found that beside Cetobacterium, a unique combination of taxa with relative abundance >10% characterized the intestine microbiota of each fish species: unclassified Mycoplasmataceae, Aeromonas, and Vibrio (hybrid striped bass); Turicibacter and Clostridiaceae 1 (European bass); Vibrio (red drum); ZOR0006—Firmicutes (hybrid tilapia); unclassified Mycoplasmataceae and unclassified Vibrionaceae (flathead grey mullet); and Aeromonas (common carp). We conclude that each fish species has a specific bacterial genera combination that characterizes it. Moreover, diet and the trophic level of the fish have a major influence on the gut microbiota of healthy fish that grow in intensive freshwater aquaculture.
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spelling pubmed-86890672021-12-22 Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species Ofek, Tamir Lalzar, Maya Laviad-Shitrit, Sivan Izhaki, Ido Halpern, Malka Front Microbiol Microbiology Intensive freshwater aquaculture in the Spring Valley, Israel, is implemented mainly in earthen fishponds and reservoirs that are stocked with a variety of edible fish species. Here we sampled six different healthy fish species from these intensive aquacultures. The fish were hybrid striped bass, European bass, red drum (all carnivores), hybrid tilapia, flathead grey mullet (both herbivores), and common carp (an omnivore). Significant differences were found among the intestinal microbiota of the six studied fish species. The microbiota composition diversity was strongly related to the trophic level of the fish, such that there was a significant difference between the carnivore and the herbivore species, while the omnivore species was not significantly different from either group. The most abundant genus in the majority of the fishes’ intestinal microbiota was Cetobacterium. Furthermore, we found that beside Cetobacterium, a unique combination of taxa with relative abundance >10% characterized the intestine microbiota of each fish species: unclassified Mycoplasmataceae, Aeromonas, and Vibrio (hybrid striped bass); Turicibacter and Clostridiaceae 1 (European bass); Vibrio (red drum); ZOR0006—Firmicutes (hybrid tilapia); unclassified Mycoplasmataceae and unclassified Vibrionaceae (flathead grey mullet); and Aeromonas (common carp). We conclude that each fish species has a specific bacterial genera combination that characterizes it. Moreover, diet and the trophic level of the fish have a major influence on the gut microbiota of healthy fish that grow in intensive freshwater aquaculture. Frontiers Media S.A. 2021-12-07 /pmc/articles/PMC8689067/ /pubmed/34950115 http://dx.doi.org/10.3389/fmicb.2021.760266 Text en Copyright © 2021 Ofek, Lalzar, Laviad-Shitrit, Izhaki and Halpern. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Microbiology
Ofek, Tamir
Lalzar, Maya
Laviad-Shitrit, Sivan
Izhaki, Ido
Halpern, Malka
Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title_full Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title_fullStr Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title_full_unstemmed Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title_short Comparative Study of Intestinal Microbiota Composition of Six Edible Fish Species
title_sort comparative study of intestinal microbiota composition of six edible fish species
topic Microbiology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8689067/
https://www.ncbi.nlm.nih.gov/pubmed/34950115
http://dx.doi.org/10.3389/fmicb.2021.760266
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