Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems
Reliance on fishmeal as a primary protein source is among the chief economic and environmental concerns in aquaculture today. Fishmeal-based feeds often require harvest from wild fish stocks, placing pressure on natural ecosystems and causing price instability. Alternative diet formulations without...
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ftpubmed:oai:pubmedcentral.nih.gov:4984271 2023-05-15T15:32:03+02:00 Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems Schmidt, Victor Amaral-Zettler, Linda Davidson, John Summerfelt, Steven Good, Christopher 2016-07-15 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4984271/ http://www.ncbi.nlm.nih.gov/pubmed/27129964 https://doi.org/10.1128/AEM.00902-16 en eng American Society for Microbiology http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4984271/ http://www.ncbi.nlm.nih.gov/pubmed/27129964 http://dx.doi.org/10.1128/AEM.00902-16 Copyright © 2016 Schmidt et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (http://creativecommons.org/licenses/by/4.0/) . CC-BY Microbial Ecology Text 2016 ftpubmed https://doi.org/10.1128/AEM.00902-16 2016-09-04T00:21:10Z Reliance on fishmeal as a primary protein source is among the chief economic and environmental concerns in aquaculture today. Fishmeal-based feeds often require harvest from wild fish stocks, placing pressure on natural ecosystems and causing price instability. Alternative diet formulations without the use of fishmeal provide a potential solution to this challenge. Although the impact of alternative diets on fish performance, intestinal inflammation, palatability, and gut microbiota has been a topic of recent interest, less is known about how alternative feeds impact the aquaculture environment as a whole. The recent focus on recirculating aquaculture systems (RAS) and the closed-containment approach to raising food fish highlights the need to maintain stable environmental and microbiological conditions within a farm environment. Microbial stability in RAS biofilters is particularly important, given its role in nutrient processing and water quality in these closed systems. If and how the impacts of alternative feeds on microbial communities in fish translate into changes to the biofilters are not known. We tested the influence of a fishmeal-free diet on the microbial communities in RAS water, biofilters, and salmon microbiomes using high-throughput 16S rRNA gene V6 hypervariable region amplicon sequencing. We grew Atlantic salmon (Salmo salar) to market size in six replicate RAS tanks, three with traditional fishmeal diets and three with alternative-protein, fishmeal-free diets. We sampled intestines and gills from market-ready adult fish, water, and biofilter medium in each corresponding RAS unit. Our results provide data on how fish diet influences the RAS environment and corroborate previous findings that diet has a clear influence on the microbiome structure of the salmon intestine, particularly within the order Lactobacillales (lactic acid bacteria). We conclude that the strong stability of taxa likely involved in water quality processing regardless of diet (e.g., Nitrospira) may further alleviate concerns ... Text Atlantic salmon Salmo salar PubMed Central (PMC) Applied and Environmental Microbiology 82 15 4470 4481 |
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language |
English |
topic |
Microbial Ecology |
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Microbial Ecology Schmidt, Victor Amaral-Zettler, Linda Davidson, John Summerfelt, Steven Good, Christopher Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
topic_facet |
Microbial Ecology |
description |
Reliance on fishmeal as a primary protein source is among the chief economic and environmental concerns in aquaculture today. Fishmeal-based feeds often require harvest from wild fish stocks, placing pressure on natural ecosystems and causing price instability. Alternative diet formulations without the use of fishmeal provide a potential solution to this challenge. Although the impact of alternative diets on fish performance, intestinal inflammation, palatability, and gut microbiota has been a topic of recent interest, less is known about how alternative feeds impact the aquaculture environment as a whole. The recent focus on recirculating aquaculture systems (RAS) and the closed-containment approach to raising food fish highlights the need to maintain stable environmental and microbiological conditions within a farm environment. Microbial stability in RAS biofilters is particularly important, given its role in nutrient processing and water quality in these closed systems. If and how the impacts of alternative feeds on microbial communities in fish translate into changes to the biofilters are not known. We tested the influence of a fishmeal-free diet on the microbial communities in RAS water, biofilters, and salmon microbiomes using high-throughput 16S rRNA gene V6 hypervariable region amplicon sequencing. We grew Atlantic salmon (Salmo salar) to market size in six replicate RAS tanks, three with traditional fishmeal diets and three with alternative-protein, fishmeal-free diets. We sampled intestines and gills from market-ready adult fish, water, and biofilter medium in each corresponding RAS unit. Our results provide data on how fish diet influences the RAS environment and corroborate previous findings that diet has a clear influence on the microbiome structure of the salmon intestine, particularly within the order Lactobacillales (lactic acid bacteria). We conclude that the strong stability of taxa likely involved in water quality processing regardless of diet (e.g., Nitrospira) may further alleviate concerns ... |
format |
Text |
author |
Schmidt, Victor Amaral-Zettler, Linda Davidson, John Summerfelt, Steven Good, Christopher |
author_facet |
Schmidt, Victor Amaral-Zettler, Linda Davidson, John Summerfelt, Steven Good, Christopher |
author_sort |
Schmidt, Victor |
title |
Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
title_short |
Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
title_full |
Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
title_fullStr |
Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
title_full_unstemmed |
Influence of Fishmeal-Free Diets on Microbial Communities in Atlantic Salmon (Salmo salar) Recirculation Aquaculture Systems |
title_sort |
influence of fishmeal-free diets on microbial communities in atlantic salmon (salmo salar) recirculation aquaculture systems |
publisher |
American Society for Microbiology |
publishDate |
2016 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4984271/ http://www.ncbi.nlm.nih.gov/pubmed/27129964 https://doi.org/10.1128/AEM.00902-16 |
genre |
Atlantic salmon Salmo salar |
genre_facet |
Atlantic salmon Salmo salar |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4984271/ http://www.ncbi.nlm.nih.gov/pubmed/27129964 http://dx.doi.org/10.1128/AEM.00902-16 |
op_rights |
Copyright © 2016 Schmidt et al. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International license (http://creativecommons.org/licenses/by/4.0/) . |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1128/AEM.00902-16 |
container_title |
Applied and Environmental Microbiology |
container_volume |
82 |
container_issue |
15 |
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4470 |
op_container_end_page |
4481 |
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1766362551951556608 |