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dc.contributor.authorCautain, Ivan J.
dc.contributor.authorLast, Kim S.
dc.contributor.authorBluhm, Bodil Annikki Ulla Barbro
dc.contributor.authorRenaud, Paul Eric
dc.contributor.authorMcKee, David
dc.contributor.authorNarayanaswamy, Bhavani E.
dc.date.accessioned2024-10-03T09:22:11Z
dc.date.available2024-10-03T09:22:11Z
dc.date.issued2024-08-07
dc.description.abstractOn Arctic shelves, benthic food-webs are tightly linked to overlying primary production. In the seasonal ice zone, sympagic (ice-associated) primary production can be a major source of carbon for the benthos on productive inflow shelves. However, the role of sympagic organic matter is less well-understood in food webs of heavily ice-covered, less- productive outflow shelves, such as the northeast Greenland shelf. Highly branched isoprenoid biomarkers (HBIs) were used to track the relative distribution of sympagic and pelagic organic matter in the water column, sediments, and benthic fauna of the northeast Greenland shelf and fjords. Low pelagic HBI presence throughout the study area indicated a generally low production by pelagic diatoms (at the time of sampling). This was reflected in the benthos, as ~90% of their assimilated carbon was estimated to come from sympagic sources, indicating a benthic food-web highly reliant on sympagic production. This reliance was higher in coastal areas than on the open shelf, where the potentially higher pelagic productivity and shallower water on banks likely increased contributions of pelagic organic matter. As declining ice cover and reduced production of fast-sinking ice algae projected for Arctic shelves will likely result in weaker coupling between ice algae and the benthos, with possible consequences for future benthic-community structure and function.en_US
dc.identifier.citationCautain, Last, Bluhm, Renaud, McKee, Narayanaswamy. High uptake of sympagic organic matter by benthos on an Arctic outflow shelf. PLOS ONE. 2024;19(8)en_US
dc.identifier.cristinIDFRIDAID 2289750
dc.identifier.doi10.1371/journal.pone.0308562
dc.identifier.issn1932-6203
dc.identifier.urihttps://hdl.handle.net/10037/35008
dc.language.isoengen_US
dc.publisherPLOSen_US
dc.relation.journalPLOS ONE
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.titleHigh uptake of sympagic organic matter by benthos on an Arctic outflow shelfen_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)