Show simple item record

dc.contributor.authorGawinski, Christine
dc.contributor.authorBasedow, Sünnje Linnéa
dc.contributor.authorSundfjord, Arild
dc.contributor.authorSvensen, Camilla
dc.date.accessioned2024-08-29T08:12:32Z
dc.date.available2024-08-29T08:12:32Z
dc.date.issued2024-05-02
dc.description.abstractThe Barents Sea polar front is characterized by high primary production following the retreat of the ice edge during spring. However, secondary production estimates of mesozooplankton across the front are scarce, despite being essential for understanding energy flow through the food web. We investigated mesozooplankton community composition and production across the Barents Sea polar front (75°-78°N) in June, covering both Atlantic and Arctic water masses with high spatial and taxonomic resolution. We highlight the contribution of small and large groups of mesozooplankton and estimate secondary production by comparing and evaluating 4 commonly used growth rate models. The zooplankton community composition and size distribution changed across the polar front. In the Atlantic region, Rotifera, Chaetognatha and Appendicularia were common, while copepods and their nauplii contributed most across the polar front and in Arctic water masses. Mesozooplankton secondary production took place mainly in the surface and was highest south of the front, declining towards Arctic waters. Considering production by copepods alone, highest values were found in the northern sector of the polar front and in the Arctic region. Young developmental stages (CI-CIV) of Calanus spp. and small-sized taxa contributed most to copepod production in Atlantic waters, while calanoid copepod nauplii contributed considerably to copepod production in Arctic waters. We emphasize that the production estimates were strongly influenced by the growth rate model and conclude that copepod secondary production in a summer situation with non-limiting food concentration was best described using a model that solely considers water temperature and copepod body weight.en_US
dc.identifier.citationGawinski, Basedow, Sundfjord, Svensen. Secondary production at the Barents Sea polar front in summer: contribution of different size classes of mesozooplankton. Marine Ecology Progress Series. 2024;735:77-101en_US
dc.identifier.cristinIDFRIDAID 2266309
dc.identifier.doi10.3354/meps14570
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttps://hdl.handle.net/10037/34448
dc.language.isoengen_US
dc.publisherInter-Researchen_US
dc.relation.journalMarine Ecology Progress Series
dc.relation.projectIDNorges forskningsråd: 276730en_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.titleSecondary production at the Barents Sea polar front in summer: contribution of different size classes of mesozooplanktonen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record

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