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dc.contributor.authorTamelander, Tobias
dc.contributor.authorAubert, Anais
dc.contributor.authorWexels Riser, Christian
dc.date.accessioned2013-03-15T12:16:31Z
dc.date.available2013-03-15T12:16:31Z
dc.date.issued2012
dc.description.abstractSinking of particles is a key mechanism in the transport of organic matter from the ocean’s productive surface layer to the deep sea and sediments, but also constitutes a loss of carbon and growth-limiting nutrients to the pelagic food web. Knowledge on export of particulate phosphorus is limited, particularly in high-latitude regions, in spite of its role as a co-limiting factor in many marine systems. We therefore investigated suspended concentrations and vertical export (by means of sediment traps) of particulate organic carbon (POC), nitrogen (PON) and total particulate phosphorus (TPP) at 3 contrasting sites in the Fram Strait and Barents Sea opening and quantified the contribution of zooplankton faecal pellets to POC, PON and TPP export. The TPP fluxes are the first to be reported from this region and probably the first from the entire Arctic Ocean. The suspended and exported C:N ratios were close to the Redfield ratio and did not differ significantly from each other (mean atomic ratios of 6.1 and 6.3, respectively). The mean C:P of suspended particles (91) was below Redfield, whereas the exported mean (117) exceeded Redfield, indicating more efficient retention of phosphorus than of nitrogen in the water column. Copepod faecal pellets had low C:P ratios and contributed a higher proportion to phosphorus export (mean of 17%) than to carbon and nitrogen export (10%). Faecal pellets may therefore be an important loss factor for phosphorus from the water column compared to slower-sinking material, which is retained more efficiently.en
dc.identifier.citationMarine Ecology Progress Series 459(2012) s. 17-28en
dc.identifier.cristinIDFRIDAID 916924
dc.identifier.doihttp://dx.doi.org/10.3354/meps09733
dc.identifier.issn0171-8630
dc.identifier.urihttps://hdl.handle.net/10037/5032
dc.identifier.urnURN:NBN:no-uit_munin_4747
dc.language.isoengen
dc.publisherInter Researchen
dc.rights.accessRightsopenAccess
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497en
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en
dc.titleExport stoichiometry and contribution of copepod faecal pellets to vertical flux of particulate organic carbon, nitrogen and phosphorusen
dc.typeJournal articleen
dc.typeTidsskriftartikkelen
dc.typePeer revieweden


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