Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding
Although intestinal microbial communities from anadromous Arctic char (Salvelinus alpinus (Linnaeus, 1758)) in Kitikmeot, Nunavut, Canada, differ depending on the timing and location of capture, determinants of gut microbiota in other wild Arctic salmonids are largely unknown. Using high-throughput...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Canadian Science Publishing
2021-09-01
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| Series: | Arctic Science |
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| Online Access: | https://doi.org/10.1139/as-2020-0011 |
| _version_ | 1818833411037462528 |
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| author | Geraint Element Katja Engel Josh D. Neufeld John M. Casselman Peter J. Van Coeverden de Groot Virginia K. Walker |
| author_facet | Geraint Element Katja Engel Josh D. Neufeld John M. Casselman Peter J. Van Coeverden de Groot Virginia K. Walker |
| author_sort | Geraint Element |
| collection | DOAJ |
| description | Although intestinal microbial communities from anadromous Arctic char (Salvelinus alpinus (Linnaeus, 1758)) in Kitikmeot, Nunavut, Canada, differ depending on the timing and location of capture, determinants of gut microbiota in other wild Arctic salmonids are largely unknown. Using high-throughput 16S rRNA gene sequence data, we compared intestinal microbiota from Arctic char to those from a related and sympatric salmonid, lake whitefish (Coregonus clupeaformis (Mitchill, 1818)). Shifts in lake whitefish gut microbial community composition were observed between brackish water and freshwater, similar to impacts of salinity reported previously for Arctic char. Despite these similarities, gut community profiles for the two salmonids differed, with whitefish having higher diversities and increased proportions of taxa affiliated with potential pathogens. Geography seemed to have a greater impact on freshwater whitefish gut microbiota than on corresponding Arctic char. Additionally, microbiota diversity was significantly more affected by feeding behavior in whitefish compared with sympatric Arctic char. As sampled whitefish were at their northern range limits and grew slowly, we speculate that they, and their microbial consortia, could be more vulnerable to certain abiotic and biotic factors than Arctic char, which are well adapted to conditions found in these high latitude environments and have the most northern distribution of any freshwater fish. |
| first_indexed | 2024-12-19T02:18:29Z |
| format | Article |
| id | doaj.art-db428a50bdb246cca1f01a3ad76c73ff |
| institution | Directory Open Access Journal |
| issn | 2368-7460 |
| language | English |
| last_indexed | 2024-12-19T02:18:29Z |
| publishDate | 2021-09-01 |
| publisher | Canadian Science Publishing |
| record_format | Article |
| series | Arctic Science |
| spelling | doaj.art-db428a50bdb246cca1f01a3ad76c73ff2022-12-21T20:40:20ZengCanadian Science PublishingArctic Science2368-74602021-09-017363465410.1139/as-2020-0011Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feedingGeraint Element0Katja Engel1Josh D. Neufeld2John M. Casselman3Peter J. Van Coeverden de Groot4Virginia K. Walker5Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada.Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.Department of Biology, University of Waterloo, Waterloo, ON N2L 3G1, Canada.Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada.Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada.Department of Biology, Queen’s University, Kingston, ON K7L 3N6, Canada. School of Environmental Studies, Queen’s University, Kingston, ON K7L 3N6, Canada.Although intestinal microbial communities from anadromous Arctic char (Salvelinus alpinus (Linnaeus, 1758)) in Kitikmeot, Nunavut, Canada, differ depending on the timing and location of capture, determinants of gut microbiota in other wild Arctic salmonids are largely unknown. Using high-throughput 16S rRNA gene sequence data, we compared intestinal microbiota from Arctic char to those from a related and sympatric salmonid, lake whitefish (Coregonus clupeaformis (Mitchill, 1818)). Shifts in lake whitefish gut microbial community composition were observed between brackish water and freshwater, similar to impacts of salinity reported previously for Arctic char. Despite these similarities, gut community profiles for the two salmonids differed, with whitefish having higher diversities and increased proportions of taxa affiliated with potential pathogens. Geography seemed to have a greater impact on freshwater whitefish gut microbiota than on corresponding Arctic char. Additionally, microbiota diversity was significantly more affected by feeding behavior in whitefish compared with sympatric Arctic char. As sampled whitefish were at their northern range limits and grew slowly, we speculate that they, and their microbial consortia, could be more vulnerable to certain abiotic and biotic factors than Arctic char, which are well adapted to conditions found in these high latitude environments and have the most northern distribution of any freshwater fish.https://doi.org/10.1139/as-2020-0011arctic charlake whitefishsalvelinus alpinuscorgeonus clupeaformisanadromousmicrobiomearctic oceanpsychrophilesclimate changepathogens |
| spellingShingle | Geraint Element Katja Engel Josh D. Neufeld John M. Casselman Peter J. Van Coeverden de Groot Virginia K. Walker Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding Arctic Science arctic char lake whitefish salvelinus alpinus corgeonus clupeaformis anadromous microbiome arctic ocean psychrophiles climate change pathogens |
| title | Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding |
| title_full | Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding |
| title_fullStr | Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding |
| title_full_unstemmed | Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding |
| title_short | Distinct intestinal microbial communities of two sympatric anadromous Arctic salmonids and the effects of migration and feeding |
| title_sort | distinct intestinal microbial communities of two sympatric anadromous arctic salmonids and the effects of migration and feeding |
| topic | arctic char lake whitefish salvelinus alpinus corgeonus clupeaformis anadromous microbiome arctic ocean psychrophiles climate change pathogens |
| url | https://doi.org/10.1139/as-2020-0011 |
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