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dc.contributor.authorStorhaug, Ekaterina
dc.contributor.authorNahrgang, Jasmine
dc.contributor.authorPedersen, Kristine Bondo
dc.contributor.authorBrooks, Steven
dc.contributor.authorPetes, Laura
dc.contributor.authorBakhmet, Igor N.
dc.contributor.authorFrantzen, Marianne
dc.date.accessioned2019-11-26T09:27:34Z
dc.date.available2019-11-26T09:27:34Z
dc.date.issued2018-11-28
dc.description.abstractClimate change and pollution resulting from human activities in the Arctic require reliable monitoring systems in sentinel species. Mytilus spp. are used as sentinel species all around the world. The use of Mytilus spp. in environmental monitoring requires knowledge about natural variations in pollution biomarkers. Seasonal variations in baseline levels of biomarkers were studied over a year in the mussels from both upper and lower littoral zones in Rakkfjorden, Norway, as they underwent their annual reproductive cycle. Spatial variations of these biomarker baseline levels were measured in five mussel populations within a 60-km radius from Rakkfjorden to investigate universality of the results from the specific population of Rakkfjorden at a regional scale. Seasonal variations in biomarker baseline levels were revealed and seemed to be related to the reproductive state of the mussels and the tidal zone. The mussels appeared to be more sensitive to oxidative stress during gametogenesis in autumn and winter, when having lower lysosome membrane stability and lower baseline levels of antioxidant biomarkers. An increase in baseline levels of these biomarkers was reported during spawning in spring, however, it was not possible to reveal whether these changes were due to spawning, or to a higher metabolic activity in mussels in response to elevated water temperature and food abundance. The differences between the tidal zones were reflected in reduced size of the mussels from the upper littoral zone, their late spawning in the season and increased baseline levels of antioxidant biomarkers during the coldest month, indicating a more challenging environment in the upper littoral zone. The spatial study indicated that the biomarker baseline levels measured in Rakkfjorden were no different from the levels measured in the mussels from five other sites and thus, are representative for mussels on a regional scale.en_US
dc.descriptionAccepted manuscript version, licensed <a href=http://creativecommons.org/licenses/by-nc-nd/4.0/> CC BY-NC-ND 4.0. </a>Final version published in <i>Science of The Total Environment, 656</i>, 921-936, is available at <a href=https://doi.org/10.1016/j.scitotenv.2018.11.397>https://doi.org/10.1016/j.scitotenv.2018.11.397. </a>en_US
dc.identifier.citationStorhaug E, Nahrgang J, Pedersen KB, Brooks S, Petes L, Bakhmet, Frantzen m. Seasonal and spatial variations in biomarker baseline levels within Arctic populations of mussels (Mytilus spp.). Science of the Total Environment. 2019;656:921-936en_US
dc.identifier.cristinIDFRIDAID 1690673
dc.identifier.doi10.1016/j.scitotenv.2018.11.397
dc.identifier.issn0048-9697
dc.identifier.issn1879-1026
dc.identifier.urihttps://hdl.handle.net/10037/16726
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.journalScience of the Total Environment
dc.relation.projectIDAndre: Russian Foundation for Basic Research 12-04-93081-Norv_aen_US
dc.relation.projectIDNorges forskningsråd: 225044en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/NORRUSS/225044/Norway/Combined effects of Petroleum and the Environment in bivalves from the Norwegian-Russian Arctic//en_US
dc.rights.accessRightsopenAccessen_US
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.titleSeasonal and spatial variations in biomarker baseline levels within Arctic populations of mussels (Mytilus spp.)en_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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