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Effects of chronic crude oil exposure on the fitness of polar cod (Boreogadus saida) through changes in growth, energy reserves and survival

Permanent lenke
https://hdl.handle.net/10037/24541
DOI
https://doi.org/10.1016/j.marenvres.2021.105545
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article.pdf (2.490Mb)
Akseptert manusversjon licensed CC BY-NC-ND. (PDF)
Dato
2021-12-21
Type
Journal article
Tidsskriftartikkel
Peer reviewed

Forfatter
Vieweg, Ireen; Bender, Morgan Lizabeth; Semenchuk, Philipp; Hop, Haakon; Nahrgang, Jasmine
Sammendrag
Climate models predict extended periods with sea-ice free Arctic waters during the next decade, which will allow more shipping activity and easier access to petroleum resources. Increased industrial activities raise concerns about the biological effects of accidental petroleum release on key species of the Arctic marine ecosystem, such as the polar cod (Boreogadus saida). This study examines effects on physiological traits related to the fitness of adult polar cod, such as growth, survival, and lipid parameters. Fish were exposed to environmentally-relevant crude oil doses through their diet over an 8-month period, concurrent with reproductive development. In liver tissue, lipid class composition differed between treatments while in gonad tissue, lipid class composition varied between sexes, but not treatments. Crude oil did not affect growth and survival, which indicated that polar cod were relatively robust to dietary crude oil exposure at doses tested (0.11–1.14 μg crude oil/g fish/day) in this study.
Forlag
Elsevier
Sitering
Vieweg I, Bender ML, Semenchuk P, Hop H, Nahrgang J. Effects of chronic crude oil exposure on the fitness of polar cod (Boreogadus saida) through changes in growth, energy reserves and survival. Marine Environmental Research. 2022
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