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dc.contributor.authorRoberts, E. M.
dc.contributor.authorBowers, D. G.
dc.contributor.authorMeyer, H. K.
dc.contributor.authorSamuelsen, Annette
dc.contributor.authorRapp, Hans Tore
dc.contributor.authorCardenas, P.
dc.date.accessioned2021-06-28T12:59:54Z
dc.date.available2021-06-28T12:59:54Z
dc.date.created2021-02-12T13:22:37Z
dc.date.issued2021
dc.identifier.issn0171-8630
dc.identifier.urihttps://hdl.handle.net/11250/2761685
dc.description.abstractWater masses are bodies of water with distinctive physical and biogeochemical properties. They impart vertical structure to the deep ocean, participate in circulation, and can be traced over great distances, potentially influencing the distributions of deep-sea fauna. The classic potential temperature-salinity (θ-s) diagram was used to investigate deep-sea sponge (demosponge genus Geodia) association with water masses over the North Atlantic Ocean and Nordic Seas. A novel analysis was conducted, based on sampling the curvature of climatological mean θ-s curves at sponge locations. Sponges were particularly associated with turning points in the θ-s curves, indicative of intermediate and deep water masses. Arctic geodiid species (G. hentscheli and G. parva) were associated with Arctic intermediate and deep waters in the Nordic Seas, and with dense overflows into the northern North Atlantic. Boreal species (G. atlantica, G. barretti, G. macandrewii, and G. phlegraei) were associated with upper and intermediate water masses in the Northeast Atlantic and with upper, Atlantic-derived waters in the Nordic Seas. Taken together with distributional patterns, a link with thermohaline currents was also inferred. We conclude that water masses and major current pathways structure the distribution of a key deep-sea benthic faunal group on an ocean basin scale. This is most likely because of a combination of the physical constraints they place on the dispersal of early life-history stages, ecophysiological adaptation (evolved tolerances) to specific water masses, and the benefits to filter-feeders of certain phenomena linked to water column structure (e.g. nepheloid layers, internal waves/tides, density-driven currents).en_US
dc.language.isoengen_US
dc.publisherInter-Researchen_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleWater masses constrain the distribution of deep-sea sponges in the North Atlantic Ocean and Nordic Seasen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright the authors 2021en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode2
dc.identifier.doi10.3354/meps13570
dc.identifier.cristin1889192
dc.source.journalMarine Ecology Progress Seriesen_US
dc.source.pagenumber75-96en_US
dc.identifier.citationMarine Ecology Progress Series. 2021, 659, 75-96.en_US
dc.source.volume659en_US


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Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal