Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure
ABSTRACT Many studies demonstrate the importance of the commensal microbiomes to animal health and development. However, the initial community assembly process is poorly understood. It is unclear to what extent the hosts select for their commensal microbiota, whether stochastic processes contribute,...
Published in: | FEMS Microbiology Ecology |
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Oxford University Press (OUP)
2020
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croxfordunivpr:10.1093/femsec/fiaa163 2024-05-19T07:37:06+00:00 Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure Vestrum, Ragnhild I Attramadal, Kari J K Vadstein, Olav Gundersen, Madeleine Stenshorne Bakke, Ingrid Faculty of Natural Sciences Norwegian University of Science and Technology European Community's Seventh Framework Programme 2020 http://dx.doi.org/10.1093/femsec/fiaa163 http://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiaa163/33668356/fiaa163.pdf http://academic.oup.com/femsec/article-pdf/96/9/fiaa163/33729363/fiaa163.pdf en eng Oxford University Press (OUP) http://creativecommons.org/licenses/by/4.0/ FEMS Microbiology Ecology volume 96, issue 9 ISSN 1574-6941 journal-article 2020 croxfordunivpr https://doi.org/10.1093/femsec/fiaa163 2024-05-02T09:32:53Z ABSTRACT Many studies demonstrate the importance of the commensal microbiomes to animal health and development. However, the initial community assembly process is poorly understood. It is unclear to what extent the hosts select for their commensal microbiota, whether stochastic processes contribute, and how environmental conditions affect the community assembly. We investigated community assembly in Atlantic cod larvae exposed to distinct microbial metacommunities. We aimed to quantify ecological processes influencing community assembly in cod larvae and to elucidate the complex relationship between the bacteria of the environment and the fish. Selection within the fish was the major determinant for community assembly, but drift resulted in inter-individual variation. The environmental bacterial communities were highly dissimilar from those associated with the fish. Still, differences in the environmental bacterial communities strongly influenced the fish communities. The most striking difference was an excessive dominance of a single OTU (Arcobacter) for larvae reared in two of the three systems. These larvae were exposed to environments with higher fractions of opportunistic bacteria, and we hypothesise that detrimental host–microbe interactions might have made the fish susceptible to Arcobacter colonisation. Despite strong selection within the host, this points to a possibility to steer the metacommunity towards mutualistic host–microbe interactions and improved fish health and survival. Article in Journal/Newspaper atlantic cod Gadus morhua Oxford University Press FEMS Microbiology Ecology 96 9 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
ABSTRACT Many studies demonstrate the importance of the commensal microbiomes to animal health and development. However, the initial community assembly process is poorly understood. It is unclear to what extent the hosts select for their commensal microbiota, whether stochastic processes contribute, and how environmental conditions affect the community assembly. We investigated community assembly in Atlantic cod larvae exposed to distinct microbial metacommunities. We aimed to quantify ecological processes influencing community assembly in cod larvae and to elucidate the complex relationship between the bacteria of the environment and the fish. Selection within the fish was the major determinant for community assembly, but drift resulted in inter-individual variation. The environmental bacterial communities were highly dissimilar from those associated with the fish. Still, differences in the environmental bacterial communities strongly influenced the fish communities. The most striking difference was an excessive dominance of a single OTU (Arcobacter) for larvae reared in two of the three systems. These larvae were exposed to environments with higher fractions of opportunistic bacteria, and we hypothesise that detrimental host–microbe interactions might have made the fish susceptible to Arcobacter colonisation. Despite strong selection within the host, this points to a possibility to steer the metacommunity towards mutualistic host–microbe interactions and improved fish health and survival. |
author2 |
Faculty of Natural Sciences Norwegian University of Science and Technology European Community's Seventh Framework Programme |
format |
Article in Journal/Newspaper |
author |
Vestrum, Ragnhild I Attramadal, Kari J K Vadstein, Olav Gundersen, Madeleine Stenshorne Bakke, Ingrid |
spellingShingle |
Vestrum, Ragnhild I Attramadal, Kari J K Vadstein, Olav Gundersen, Madeleine Stenshorne Bakke, Ingrid Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
author_facet |
Vestrum, Ragnhild I Attramadal, Kari J K Vadstein, Olav Gundersen, Madeleine Stenshorne Bakke, Ingrid |
author_sort |
Vestrum, Ragnhild I |
title |
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
title_short |
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
title_full |
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
title_fullStr |
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
title_full_unstemmed |
Bacterial community assembly in Atlantic cod larvae (Gadus morhua): contributions of ecological processes and metacommunity structure |
title_sort |
bacterial community assembly in atlantic cod larvae (gadus morhua): contributions of ecological processes and metacommunity structure |
publisher |
Oxford University Press (OUP) |
publishDate |
2020 |
url |
http://dx.doi.org/10.1093/femsec/fiaa163 http://academic.oup.com/femsec/advance-article-pdf/doi/10.1093/femsec/fiaa163/33668356/fiaa163.pdf http://academic.oup.com/femsec/article-pdf/96/9/fiaa163/33729363/fiaa163.pdf |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
FEMS Microbiology Ecology volume 96, issue 9 ISSN 1574-6941 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1093/femsec/fiaa163 |
container_title |
FEMS Microbiology Ecology |
container_volume |
96 |
container_issue |
9 |
_version_ |
1799476340150239232 |