Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach
Diatoms are a keystone algal group, with diverse cell morphology and a global distribution. The biogeography of morphological, functional, and life-history traits of marine diatoms were investigated in Arctic and Atlantic waters of the Labrador Sea during the spring bloom (2013-2014). In this study,...
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ftnerc:oai:nora.nerc.ac.uk:521180 2023-05-15T14:52:33+02:00 Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach Fragoso, Glaucia M. Poulton, Alex J. Yashayaev, Igor M. Head, Erica J. H. Johnsen, Geir Purdie, Duncan A. 2018 text http://nora.nerc.ac.uk/id/eprint/521180/ https://nora.nerc.ac.uk/id/eprint/521180/1/fmars-05-00297.pdf https://doi.org/10.3389/fmars.2018.00297 en eng https://nora.nerc.ac.uk/id/eprint/521180/1/fmars-05-00297.pdf Fragoso, Glaucia M.; Poulton, Alex J.; Yashayaev, Igor M.; Head, Erica J. H.; Johnsen, Geir; Purdie, Duncan A. 2018 Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach. Frontiers in Marine Science, 5. https://doi.org/10.3389/fmars.2018.00297 <https://doi.org/10.3389/fmars.2018.00297> cc_by_4 CC-BY Publication - Article PeerReviewed 2018 ftnerc https://doi.org/10.3389/fmars.2018.00297 2023-02-04T19:47:10Z Diatoms are a keystone algal group, with diverse cell morphology and a global distribution. The biogeography of morphological, functional, and life-history traits of marine diatoms were investigated in Arctic and Atlantic waters of the Labrador Sea during the spring bloom (2013-2014). In this study, trait-based analysis using community-weighted means showed that low temperatures (< 0°C) in Arctic waters correlated positively with diatom species that have traits such as low temperature optimum growth and the ability to produced ice-binding proteins, highlighting their sea ice origin. High silicate concentrations in Arctic waters, as well as sea ice cover and shallow bathymetry, favoured diatom species that were heavily silicified, colonial and capable of producing resting spores, suggesting that these are important traits for this community. In Atlantic waters, diatom species with large surface area to volume ratios were dominant in deep mixed layers, whilst low silicate to nitrate ratios correlated positively with weakly silicified species. Sharp cell projections, such as processes or spines, were positively correlated with water-column stratification, indicating that these traits promote positive buoyancy for diatom cells. Our trait-based analysis directly links cell morphology and physiology with diatom species distribution, allowing new insights on how this method can potentially be applied to explain ecophysiology and shifting biogeographical distributions in a warming climate. Article in Journal/Newspaper Arctic Labrador Sea Sea ice Natural Environment Research Council: NERC Open Research Archive Arctic Frontiers in Marine Science 5 |
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Open Polar |
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Natural Environment Research Council: NERC Open Research Archive |
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ftnerc |
language |
English |
description |
Diatoms are a keystone algal group, with diverse cell morphology and a global distribution. The biogeography of morphological, functional, and life-history traits of marine diatoms were investigated in Arctic and Atlantic waters of the Labrador Sea during the spring bloom (2013-2014). In this study, trait-based analysis using community-weighted means showed that low temperatures (< 0°C) in Arctic waters correlated positively with diatom species that have traits such as low temperature optimum growth and the ability to produced ice-binding proteins, highlighting their sea ice origin. High silicate concentrations in Arctic waters, as well as sea ice cover and shallow bathymetry, favoured diatom species that were heavily silicified, colonial and capable of producing resting spores, suggesting that these are important traits for this community. In Atlantic waters, diatom species with large surface area to volume ratios were dominant in deep mixed layers, whilst low silicate to nitrate ratios correlated positively with weakly silicified species. Sharp cell projections, such as processes or spines, were positively correlated with water-column stratification, indicating that these traits promote positive buoyancy for diatom cells. Our trait-based analysis directly links cell morphology and physiology with diatom species distribution, allowing new insights on how this method can potentially be applied to explain ecophysiology and shifting biogeographical distributions in a warming climate. |
format |
Article in Journal/Newspaper |
author |
Fragoso, Glaucia M. Poulton, Alex J. Yashayaev, Igor M. Head, Erica J. H. Johnsen, Geir Purdie, Duncan A. |
spellingShingle |
Fragoso, Glaucia M. Poulton, Alex J. Yashayaev, Igor M. Head, Erica J. H. Johnsen, Geir Purdie, Duncan A. Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
author_facet |
Fragoso, Glaucia M. Poulton, Alex J. Yashayaev, Igor M. Head, Erica J. H. Johnsen, Geir Purdie, Duncan A. |
author_sort |
Fragoso, Glaucia M. |
title |
Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
title_short |
Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
title_full |
Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
title_fullStr |
Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
title_full_unstemmed |
Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach |
title_sort |
diatom biogeography from the labrador sea revealed through a trait-based approach |
publishDate |
2018 |
url |
http://nora.nerc.ac.uk/id/eprint/521180/ https://nora.nerc.ac.uk/id/eprint/521180/1/fmars-05-00297.pdf https://doi.org/10.3389/fmars.2018.00297 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Labrador Sea Sea ice |
genre_facet |
Arctic Labrador Sea Sea ice |
op_relation |
https://nora.nerc.ac.uk/id/eprint/521180/1/fmars-05-00297.pdf Fragoso, Glaucia M.; Poulton, Alex J.; Yashayaev, Igor M.; Head, Erica J. H.; Johnsen, Geir; Purdie, Duncan A. 2018 Diatom Biogeography From the Labrador Sea Revealed Through a Trait-Based Approach. Frontiers in Marine Science, 5. https://doi.org/10.3389/fmars.2018.00297 <https://doi.org/10.3389/fmars.2018.00297> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2018.00297 |
container_title |
Frontiers in Marine Science |
container_volume |
5 |
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1766323784924528640 |