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dc.contributor.authorNahrgang, Jasmine
dc.contributor.authorBender, Morgan Lizabeth
dc.contributor.authorMeier, Sonnich
dc.contributor.authorNechev, Jordan
dc.contributor.authorBerge, Jørgen
dc.contributor.authorFrantzen, marianne
dc.date.accessioned2019-12-20T13:47:26Z
dc.date.available2019-12-20T13:47:26Z
dc.date.issued2019-05-06
dc.description.abstractThe increasing human presence in the Arctic shelf seas, with the expansion of oil and gas industries and maritime shipping, poses a risk for Arctic marine organisms such as the key species polar cod (<i>Boreogadus saida</i>). The impact of dietary crude oil on growth and metabolism of polar cod was investigated in the early spring (March–April) when individuals are expected to be in a vulnerable physiological state with poor energy stores. Adult polar cod were exposed dietarily to three doses of Kobbe crude oil during an eight weeks period and followed by two weeks of depuration. Significant dose-responses in exposure biomarkers (hepatic ethoxyresorufine-O-deethylase [EROD] activity and 1-OH phenanthrene metabolites in bile) indicated that polycyclic aromatic hydrocarbons (PAHs) were bioavailable. Condition indices (i.e. Fulton's condition factor, hepatosomatic index), growth, whole body respiration, and total lipid content in the liver were monitored over the course of the experiment. The majority of females were immature, while a few had spawned during the season and showed low hepatic lipid content during the experiment. In contrast, males were all, except for one immature individual, in a post-spawning stage and had larger hepatic energy stores than females. Most specimens, independent of sex, showed a loss in weight, that was exacerbated by exposure to crude oil and low hepatic liver lipids. Furthermore, females exposed to crude oil showed a significant elevation of oxygen consumption compared to controls, although not dose-dependent. This study highlights the importance of the energy status of individuals for their response to a crude oil exposure.en_US
dc.identifier.citationNahrgang J, Bender ML, Meier S, Nechev J, Berge J, Frantzen m. Growth and metabolism of adult polar cod (Boreogadus saida) in response to dietary crude oil. Ecotoxicology and Environmental Safety. 2019;180:53-62en_US
dc.identifier.cristinIDFRIDAID 1698471
dc.identifier.doi10.1016/j.ecoenv.2019.04.082
dc.identifier.issn0147-6513
dc.identifier.issn1090-2414
dc.identifier.urihttps://hdl.handle.net/10037/16972
dc.language.isoengen_US
dc.publisherElsevieren_US
dc.relation.ispartofBender, M.L. (2020). Polar Cod in a Changing Arctic. Toxicity of crude oil on sensitive life history stages of a key Arctic species. (Doctoral thesis). <a href=https://hdl.handle.net/10037/18289>https://hdl.handle.net/10037/18289</a>.
dc.relation.journalEcotoxicology and Environmental Safety
dc.relation.projectIDNorges forskningsråd: 214184en_US
dc.relation.projectIDFramsenteret: flagship Hazardous substances 2012en_US
dc.relation.projectIDNorges forskningsråd: 195160en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/NCR/FRIMEDBIO/214184/Norway/Polar cod, lipid metabolism and disruption by polycyclic aromatic hydrocarbons//en_US
dc.relation.projectIDinfo:eu-repo/grantAgreement/NCR/NORDSATS/195160/Norway/Northern Environmental Waste Management//en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holder© 2019 The Authorsen_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.rightsAttribution 4.0 International*
dc.subjectVDP::Agriculture and fishery disciplines: 900::Fisheries science: 920en_US
dc.subjectVDP::Landbruks- og Fiskerifag: 900::Fiskerifag: 920en_US
dc.titleGrowth and metabolism of adult polar cod (Boreogadus saida) in response to dietary crude oilen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International