Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan
The subtropical to subpolar planktic foraminifera Globigerina bulloides is a calcifying marine protist, and one of the dominant foraminiferal species of the Nordic Seas. Previously, the relative abundance and shell geochemistry of fossil G. bulloides have been studied for palaeoceanographic reconstr...
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Oxford University Press
2024
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Online Access: | https://hdl.handle.net/10037/33774 https://doi.org/10.1093/plankt/fbae029 |
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ftunivtroemsoe:oai:munin.uit.no:10037/33774 2024-06-23T07:54:50+00:00 Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan Sykes, Freya Elizabeth Meilland, Julie Westgård, Adele Chalk, Tom Chierici, Melissa Foster, Gavin L. Mohamed, Mohamed Mahmoud Ezat Ahmed 2024-06-07 https://hdl.handle.net/10037/33774 https://doi.org/10.1093/plankt/fbae029 eng eng Oxford University Press Journal of Plankton Research ERC-European Research Council: 101040461 Tromsø forskningsstiftelse: A31720 Norges forskningsråd: 332635 Sykes FE, Meilland J, Westgård A, Chalk TB, Chierici M, Foster GL, Mohamed M. Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan. Journal of Plankton Research. 2024 FRIDAID 2274742 doi:10.1093/plankt/fbae029 0142-7873 1464-3774 https://hdl.handle.net/10037/33774 Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2024 ftunivtroemsoe https://doi.org/10.1093/plankt/fbae029 2024-06-11T23:56:25Z The subtropical to subpolar planktic foraminifera Globigerina bulloides is a calcifying marine protist, and one of the dominant foraminiferal species of the Nordic Seas. Previously, the relative abundance and shell geochemistry of fossil G. bulloides have been studied for palaeoceanographic reconstructions. There is however a lack of biological observations on the species and a poor understanding of its ecological tolerances, especially for high latitude genotypes. Here, we present observations from the first extensive culturing of G. bulloides under subpolar conditions, including the first low temperature (6–13°C) and variable salinity (30–38) experiments. Carbonate chemistry (pH and [CO32−]) was also manipulated. Experimental conditions were chosen to reflect a range of plausible past and future scenarios for the Nordic Seas. We found G. bulloides to be tolerant of environmental conditions well outside their optimal range (<10°C, salinity <33, pH <8). Observed life span was up to three months, which was attributed to a microalgal diet. Two alternative life strategies were employed, whereby individuals either experienced rapid growth and death, or a prolonged lifespan with minimal growth and death via slow decay. We posit this could help explain differences in geochemical signals recorded from different size fractions of fossil specimens used for palaeoceanographic reconstructions. Article in Journal/Newspaper Nordic Seas University of Tromsø: Munin Open Research Archive Journal of Plankton Research |
institution |
Open Polar |
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University of Tromsø: Munin Open Research Archive |
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ftunivtroemsoe |
language |
English |
description |
The subtropical to subpolar planktic foraminifera Globigerina bulloides is a calcifying marine protist, and one of the dominant foraminiferal species of the Nordic Seas. Previously, the relative abundance and shell geochemistry of fossil G. bulloides have been studied for palaeoceanographic reconstructions. There is however a lack of biological observations on the species and a poor understanding of its ecological tolerances, especially for high latitude genotypes. Here, we present observations from the first extensive culturing of G. bulloides under subpolar conditions, including the first low temperature (6–13°C) and variable salinity (30–38) experiments. Carbonate chemistry (pH and [CO32−]) was also manipulated. Experimental conditions were chosen to reflect a range of plausible past and future scenarios for the Nordic Seas. We found G. bulloides to be tolerant of environmental conditions well outside their optimal range (<10°C, salinity <33, pH <8). Observed life span was up to three months, which was attributed to a microalgal diet. Two alternative life strategies were employed, whereby individuals either experienced rapid growth and death, or a prolonged lifespan with minimal growth and death via slow decay. We posit this could help explain differences in geochemical signals recorded from different size fractions of fossil specimens used for palaeoceanographic reconstructions. |
format |
Article in Journal/Newspaper |
author |
Sykes, Freya Elizabeth Meilland, Julie Westgård, Adele Chalk, Tom Chierici, Melissa Foster, Gavin L. Mohamed, Mohamed Mahmoud Ezat Ahmed |
spellingShingle |
Sykes, Freya Elizabeth Meilland, Julie Westgård, Adele Chalk, Tom Chierici, Melissa Foster, Gavin L. Mohamed, Mohamed Mahmoud Ezat Ahmed Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
author_facet |
Sykes, Freya Elizabeth Meilland, Julie Westgård, Adele Chalk, Tom Chierici, Melissa Foster, Gavin L. Mohamed, Mohamed Mahmoud Ezat Ahmed |
author_sort |
Sykes, Freya Elizabeth |
title |
Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
title_short |
Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
title_full |
Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
title_fullStr |
Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
title_full_unstemmed |
Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
title_sort |
large-scale culturing of the subpolar foraminifera globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan |
publisher |
Oxford University Press |
publishDate |
2024 |
url |
https://hdl.handle.net/10037/33774 https://doi.org/10.1093/plankt/fbae029 |
genre |
Nordic Seas |
genre_facet |
Nordic Seas |
op_relation |
Journal of Plankton Research ERC-European Research Council: 101040461 Tromsø forskningsstiftelse: A31720 Norges forskningsråd: 332635 Sykes FE, Meilland J, Westgård A, Chalk TB, Chierici M, Foster GL, Mohamed M. Large-scale culturing of the subpolar foraminifera Globigerina bulloides reveals tolerance to a large range of environmental parameters associated to different life-strategies and an extended lifespan. Journal of Plankton Research. 2024 FRIDAID 2274742 doi:10.1093/plankt/fbae029 0142-7873 1464-3774 https://hdl.handle.net/10037/33774 |
op_rights |
Attribution 4.0 International (CC BY 4.0) openAccess Copyright 2024 The Author(s) https://creativecommons.org/licenses/by/4.0 |
op_doi |
https://doi.org/10.1093/plankt/fbae029 |
container_title |
Journal of Plankton Research |
_version_ |
1802647108180770816 |