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dc.contributor.authorSvensen, Camilla
dc.contributor.authorIversen, Morten
dc.contributor.authorNorrbin, Maria Fredrika
dc.contributor.authorMöller, Klas Ove
dc.contributor.authorWiedmann, Ingrid
dc.contributor.authorSkardhamar, Jofrid
dc.contributor.authorBarth-Jensen, Coralie Marie Christine
dc.contributor.authorKwasniewski, Slawomir
dc.contributor.authorOrmanczyk, Mateusz
dc.contributor.authorDąbrowska, Anna Maria
dc.contributor.authorKoski, Marja
dc.date.accessioned2024-08-27T12:03:53Z
dc.date.available2024-08-27T12:03:53Z
dc.date.issued2024-07-29
dc.description.abstractZooplankton consumption of sinking aggregates affects the quality and quantity of organic carbon exported to the deep ocean. Increasing laboratory evidence shows that small particle-associated copepods impact the flux attenuation by feeding on sinking particles, but this has not been quantified in situ. We investigated the impact of an abundant particle-colonizing copepod, Microsetella norvegica, on the attenuation of the vertical carbon flux in a sub-Arctic fjord. This study combines field measurements of vertical carbon flux, abundance, and size-distribution of marine snow and degradation rates of fecal pellets and algal aggregates. Female M. norvegica altered their feeding behavior when exposed to aggregates, and ingestion rates were 0.20 μg C ind.<sup>−1</sup> d<sup>−1</sup> on marine snow and 0.11 μg C ind.<sup>−1</sup> d<sup>−1</sup> on intact krill fecal pellets, corresponding to 48% and 26% of the females' body carbon mass. Due to high sea surface abundance of up to ~ 50 ind. L<sup>−1</sup>, the population of M. norvegica had the potential to account for almost all the carbon removal in the upper 50 m of the water column, depending on the type of the aggregate. Our observations highlight the potential importance of abundant small-sized copepods for biogeochemical cycles through their impact on export flux and its attenuation in the twilight zone.en_US
dc.identifier.citationSvensen, Iversen, Norrbin, Möller, Wiedmann, Skardhamar, Barth-Jensen, Kwasniewski, Ormanczyk, Dąbrowska, Koski. Impact of aggregate-colonizing copepods on the biological carbon pump in a high-latitude fjord. Limnology and Oceanography. 2024en_US
dc.identifier.cristinIDFRIDAID 2285930
dc.identifier.doi10.1002/lno.12641
dc.identifier.issn0024-3590
dc.identifier.issn1939-5590
dc.identifier.urihttps://hdl.handle.net/10037/34436
dc.language.isoengen_US
dc.publisherWileyen_US
dc.relation.journalLimnology and Oceanography
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/869383/Norway/Arctic biodiversity change and its consequences: Assessing, monitoring and predicting the effects of ecosystem tipping cascades on marine ecosystem services and dependent human systems/ECOTIP/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2024 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc/4.0en_US
dc.rightsAttribution-NonCommercial 4.0 International (CC BY-NC 4.0)en_US
dc.titleImpact of aggregate-colonizing copepods on the biological carbon pump in a high-latitude fjorden_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)
Except where otherwise noted, this item's license is described as Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)