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dc.contributor.authorSykes, Freya Elizabeth
dc.contributor.authorMeilland, Julie
dc.contributor.authorWestgård, Adele
dc.contributor.authorChalk, Tom
dc.contributor.authorChierici, Melissa
dc.contributor.authorFoster, Gavin L.
dc.contributor.authorMohamed, Mohamed Mahmoud Ezat Ahmed
dc.date.accessioned2024-06-11T09:24:07Z
dc.date.available2024-06-11T09:24:07Z
dc.date.issued2024-06-07
dc.description.abstractThe 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.en_US
dc.identifier.citationSykes 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. 2024en_US
dc.identifier.cristinIDFRIDAID 2274742
dc.identifier.doi10.1093/plankt/fbae029
dc.identifier.issn0142-7873
dc.identifier.issn1464-3774
dc.identifier.urihttps://hdl.handle.net/10037/33774
dc.language.isoengen_US
dc.publisherOxford University Pressen_US
dc.relation.journalJournal of Plankton Research
dc.relation.projectIDERC-European Research Council: 101040461en_US
dc.relation.projectIDTromsø forskningsstiftelse: A31720en_US
dc.relation.projectIDNorges forskningsråd: 332635en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleLarge-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 lifespanen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International (CC BY 4.0)
Med mindre det står noe annet, er denne innførselens lisens beskrevet som Attribution 4.0 International (CC BY 4.0)