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dc.contributor.authorBrown, James
dc.contributor.authorWhiteley, Nia
dc.contributor.authorBailey, Allison
dc.contributor.authorGraham, Helen
dc.contributor.authorHop, Haakon
dc.contributor.authorRastrick, Samuel
dc.date.accessioned2020-12-09T10:03:39Z
dc.date.available2020-12-09T10:03:39Z
dc.date.issued2020-10-07
dc.identifierhttps://chesterrep.openrepository.com/bitstream/handle/10034/624052/Svalbard%20GS_MER_Revised%20Version.pdf?sequence=3
dc.identifier.citationBrown, J., Whiteley, N. M., Bailey, A. M., Graham, H., Hop, H., & Rastrick, S. P. (2020). Contrasting responses to salinity and future ocean acidification in arctic populations of the amphipod Gammarus setosus. Marine Environmental Research, 162, 105176. https://doi.org/10.1016/j.marenvres.2020.105176en_US
dc.identifier.issn0141-1136
dc.identifier.doi10.1016/j.marenvres.2020.105176
dc.identifier.urihttp://hdl.handle.net/10034/624052
dc.description.abstractClimate change is leading to alterations in salinity and carbonate chemistry in arctic/sub-arctic marine ecosystems. We examined three nominal populations of the circumpolar arctic/subarctic amphipod, Gammarus setosus, along a salinity gradient in the Kongsfjorden-Krossfjorden area of Svalbard. Field and laboratory experiments assessed physiological (haemolymph osmolality and gill Na+/K+-ATPase activity, NKA) and energetic responses (metabolic rates, MO2, and Cellular Energy Allocation, CEA). In the field, all populations had similar osmregulatory capacities and MO2, but lower-salinity populations had lower CEA. Reduced salinity (S = 23) and elevated pCO2 (~1000 μatm) in the laboratory for one month increased gill NKA activities and reduced CEA in all populations, but increased MO2 in the higher-salinity population. Elevated pCO2 did not interact with salinity and had no effect on NKA activities or CEA, but reduced MO2 in all populations. Reduced CEA in lower-rather than higher-salinity populations may have longer term effects on other energy demanding processes (growth and reproduction).en_US
dc.publisherElsevieren_US
dc.relation.urlhttps://www.sciencedirect.com/science/article/abs/pii/S0141113620305419?dgcid=rss_sd_allen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectArcticen_US
dc.subjectamphipodsen_US
dc.subjectcellular energy budgetsen_US
dc.subjectmetabolic ratesen_US
dc.subjectocean acidificationen_US
dc.subjectsalinityen_US
dc.subjectKongsfjordenen_US
dc.subjectSvalbarden_US
dc.titleContrasting responses to salinity and future ocean acidification in arctic populations of the amphipod Gammarus setosusen_US
dc.typeArticleen_US
dc.contributor.departmentUniversity of Chester; Bangor University; Norwegian Polar Institute; Institute of Marine Research; Norwegian Polar Institute; Institute of Marine Researchen_US
dc.identifier.journalMarine Environmental Researchen_US
or.grant.openaccessYesen_US
rioxxterms.funderFRAM-High North Research Centre for Climate and Environmenten_US
rioxxterms.identifier.projectIMR project 14591-04en_US
rioxxterms.versionAMen_US
rioxxterms.versionofrecordhttps://doi.org/10.1016/j.marenvres.2020.105176en_US
rioxxterms.licenseref.startdate2021-10-07
dcterms.dateAccepted2020-10-06
rioxxterms.publicationdate2020-10-07
dc.dateAccepted2020-10-06
dc.date.deposited2020-12-09en_US


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