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dc.contributor.authorJorda Molina, Eric
dc.contributor.authorSen, Arunima
dc.contributor.authorBluhm, Bodil Annikki Ulla Barbro
dc.contributor.authorRenaud, Paul Eric
dc.contributor.authorWłodarska-Kowalczuk, Maria
dc.contributor.authorLegeżyńska, Joanna
dc.contributor.authorOleszczuk, Barbara
dc.contributor.authorReiss, Henning
dc.date.accessioned2023-11-08T07:35:14Z
dc.date.available2023-11-08T07:35:14Z
dc.date.issued2023-10-12
dc.description.abstractThe Barents Sea has been coined ‘the Arctic hotspot’ of climate change due to the rapidity with which environmental changes are taking place. This transitional domain from Atlantic to Arctic waters is home to highly productive benthic communities. This system strongly fluctuates on a seasonal basis in its sympagic-pelagicbenthic coupling interactions, with potential effects on benthic standing stocks and production. Recent discoveries have questioned the marked seasonality for several high Arctic seafloor communities in coastal waters of Svalbard. Still, the seasonal variability of benthic process in the extensive Barents Sea open shelf remains poorly understood. Therefore, we studied the seasonality of macrofauna communities along a transect in the northwestern Barents Sea comprising two hydrographic domains (Arctic vs. Atlantic Water, across the Polar Front) and three geomorphological settings (shelf, continental slope and abyssal plain). Overall, we did not find strong signs of seasonal variation in taxonomic community structure and functional diversity. However, we found some weak signs of seasonality when examining each station separately, especially at a station close to the Polar Front, with high seasonal fluctuations in abiotic drivers indicating a stronger pelagic-benthic coupling. The lack of seasonality found both at the shelf stations south and north of the Polar Front could be related to organic matter stored in the sediments, reflected in constant levels of total organic carbon in surface sediment across time for all stations. We did observe, as expected, highly spatially structured environmental regimes and macrofauna communities associated to them from shelf to slope and basin locations. Understanding the underlying spatiotemporal mechanisms by which soft-bottom benthic communities are structured along environmental gradients is necessary to predict future impacts of climate change in this area. Our results indicate that short-term climate driven changes in the phenology of pelagic ecosystem components might not be directly reflected in the Arctic benthic system, as seafloor processes seem to be partially decoupled from those in the overlying water.en_US
dc.identifier.citationJorda Molina, Sen, Bluhm, Renaud, Włodarska-Kowalczuk, Legeżyńska, Oleszczuk, Reiss. Lack of strong seasonality in macrobenthic communities from the northern Barents Sea shelf and Nansen Basin. Progress in Oceanography. 2023;219en_US
dc.identifier.cristinIDFRIDAID 2192624
dc.identifier.doi10.1016/j.pocean.2023.103150
dc.identifier.issn0079-6611
dc.identifier.issn1873-4472
dc.identifier.urihttps://hdl.handle.net/10037/31704
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalProgress in Oceanography
dc.relation.projectIDNorges forskningsråd: 276730en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 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.titleLack of strong seasonality in macrobenthic communities from the northern Barents Sea shelf and Nansen Basinen_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)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)