Show simple item record

dc.contributor.authorDunlop, Katherine Mary
dc.contributor.authorRenaud, Paul Eric
dc.contributor.authorBerge, Jørgen
dc.contributor.authorJones, Daniel O.B.
dc.contributor.authorHarbour, Rob P.
dc.contributor.authorTandberg, Anne Helene S.
dc.contributor.authorSweetman, Andrew K.
dc.date.accessioned2021-02-16T11:27:14Z
dc.date.available2021-02-16T11:27:14Z
dc.date.created2020-12-18T10:38:56Z
dc.date.issued2020-12
dc.PublishedPolar Biology. 2020, 1-13.
dc.identifier.issn0722-4060
dc.identifier.urihttps://hdl.handle.net/11250/2728342
dc.description.abstractIn high latitude coastal regions, benthic scavenger communities are largely composed of invertebrates that play a key role in the cycling of organic matter. Factors including temperature and depth can structure Arctic and Subarctic fjord benthic communities, but the response of scavenging communities to these factors is poorly known. To address this, we compared scavenging fauna in eight fjords with different physical characteristics in Svalbard and northern Norway using time-lapse imagery of scavengers consuming Atlantic herring (Clupea harengus) bait. Fjords influenced by relatively warm Atlantic waters, both in Norway and Svalbard, had high scavenger richness. However, Svalbard fjords with negative bottom temperatures had the lowest species richness and were dominated by lysianassoid amphipods and ophiuroids. In these cold Svalbard fjords, the mean carrion removal rates were almost 20 times higher than mean values noted elsewhere, except in the warm Norwegian fjord Kaldfjorden. Amphipods and ophiuroids quickly reduced the bait to bones (207.6–304.7 g removed per hour (g h−1); mean 290.6 ± 7.3 g h−1, n = 4) in cold Svalbard fjords. In the warmer Svalbard fjords, carrion removal rates were low (0–51.5 g h−1; mean 14.6 ± 9.0 g h−1, n = 5). Carrion removal rates in Kaldfjorden were higher than other Atlantic Water influenced fjords (132.1 and 372.5 g h−1, n = 2) owing to the scavenging activity of Atlantic cod (Gadus morhua). The results demonstrate potential ecosystem responses to warming in Arctic and Subarctic fjords, particularly effects related to range expansion of boreal species.en_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.no*
dc.titleBenthic scavenger community composition and carrion removal in Arctic and Subarctic fjordsen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionpublishedVersionen_US
dc.rights.holderCopyright The Author(s)en_US
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1
dc.identifier.doi10.1007/s00300-020-02773-5
dc.identifier.cristin1861460
dc.source.journalPolar Biologyen_US
dc.source.pagenumber31-43en_US
dc.source.volume44en_US


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

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