EROD activity in liver and gills of polar cod () exposed to waterborne and dietary crude oil

International audience Polar cod an indicator species for biomonitoring in the Arctic was exposed to crude oil in waterborne and dietary experiments. Ethoxyresorufin O-deethylase (EROD) activity was measured in liver and gills of polar cod at week 0, 2 and 4 of exposure and following 2 weeks of depu...

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Bibliographic Details
Published in:Marine Environmental Research
Main Authors: Nahrgang, Jasmine, Jönsson, Martina, Camus, Lionel
Other Authors: Department of Arctic and Marine BioSciences, University of Tromsø (UiT)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2010
Subjects:
crude oil
EROD activity
polar cod
Arctic
gills
liver
Online Access:https://hal.archives-ouvertes.fr/hal-00598200
https://hal.archives-ouvertes.fr/hal-00598200/document
https://hal.archives-ouvertes.fr/hal-00598200/file/PEER_stage2_10.1016%252Fj.marenvres.2010.02.003.pdf
https://doi.org/10.1016/j.marenvres.2010.02.003
Description
Summary:International audience Polar cod an indicator species for biomonitoring in the Arctic was exposed to crude oil in waterborne and dietary experiments. Ethoxyresorufin O-deethylase (EROD) activity was measured in liver and gills of polar cod at week 0, 2 and 4 of exposure and following 2 weeks of depuration. EROD increased significantly and dose-dependently in both tissues through both exposure routes. Levels were very low in gills compared to liver reflecting the tissue-specific metabolism capacities and tissue-specific response kinetics were also observed. Furthermore, a significant increase of gill EROD was shown in dietary exposed fish, demonstrating a substantial transport of PAHs via the systemic circulation. To conclude, this study gave some preliminary information on the EROD response in terms of levels, dose dependency and timing, in gills of PAH exposed polar cod.

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