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dc.contributor.authorJørgensen, Lis Lindal
dc.contributor.authorPrimicerio, Raul
dc.contributor.authorIngvaldsen, Randi Brunvær
dc.contributor.authorFossheim, Maria
dc.contributor.authorStrelkova, Natalia
dc.contributor.authorThangstad, Trude Hauge
dc.contributor.authorManushin, Igor
dc.contributor.authorZakharov, Denis
dc.date.accessioned2019-08-08T09:34:58Z
dc.date.available2019-08-08T09:34:58Z
dc.date.issued2019-01-03
dc.description.abstractThe Arctic Barents Sea is experiencing a record temperature increase, a poleward shift in the distributions of commercial fish stocks, and invasion by the snow crab, a new predator. To evaluate benthic community vulnerability when exposed to seawater warming, bottom trawling, and predation from a new predator, we used a trait-based approach and applied this to an extensive dataset of >450 megabenthic taxa, from a 1.5 million km<sup>2</sup> area. Taxon rank values were obtained after sorting the taxa by temperature median and temperature range, i.e. the temperature sensitivity trait, and by body height, mean weight, and mobility, i.e. the trawl vulnerability trait, and were given as a size-based prey classification, i.e. the predation trait. The taxon rank values were then used to calculate the mean community sensitivity. Our study showed a recent significant increase in community mean temperature ranks, indicating an increased importance of species with affinity for warmer waters and a reduced importance of coldwater species. Commercial fish stocks and snow crabs are expanding into the western part of the Barents Sea, thereby simultaneously increasing the exposure of large immobile species to trawling and of small prey species to crab predation. Overall, we found a high level of vulnerability to the 3 investigated stressors in the northwestern Barents Sea, which may lead to alterations in community structure and diversity. Mapping vulnerability to multiple stressors enables authorities managing human activities to identify vulnerable areas that warrant special measures, including protection from trawling and reduction of the snow crab stock.en_US
dc.descriptionSource at <a href=https://doi.org/10.3354/meps12803>https://doi.org/10.3354/meps12803</a>.en_US
dc.identifier.citationJørgensen, L.L., Primicerio, R., Ingvaldsen, R.B., Fossheim, M., Strelkova, N., Thangstad, T.H., ... Zakharov, D. (2019). Impact of multiple stressors on sea bed fauna in a warming Arctic. <i>Marine Ecology Progress Series, 608</i>, 1-12. https://doi.org/10.3354/meps12803en_US
dc.identifier.cristinIDFRIDAID 1691930
dc.identifier.doi10.3354/meps12803
dc.identifier.issn0171-8630
dc.identifier.issn1616-1599
dc.identifier.urihttps://hdl.handle.net/10037/15871
dc.language.isoengen_US
dc.publisherInter-Researchen_US
dc.relation.journalMarine Ecology Progress Series
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SIPHINIFES/228880/Norway/Trophic interactions in the Barents Sea - steps towards an Integrated Ecosystem Assessment/TIBIA/en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SIPHINIFES/228896/Norway/The Arctic Ocean Ecosystem - Polhavets økosystem/SI_ARCTIC/en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Mathematics and natural science: 400::Zoology and botany: 480::Marine biology: 497en_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en_US
dc.subjectClimate warmingen_US
dc.subjectSea ice reductionen_US
dc.subjectTrawlingen_US
dc.subjectSnow crab invasionen_US
dc.subjectMegabenthosen_US
dc.subjectSensitivityen_US
dc.subjectVulnerable speciesen_US
dc.titleImpact of multiple stressors on sea bed fauna in a warming Arcticen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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