Impact of dispersed fuel oil on cardiac mitochondrial function in polar cod Boreogadus saida - Université de Bretagne Occidentale Access content directly
Journal Articles Environmental Science and Pollution Research Year : 2014

Impact of dispersed fuel oil on cardiac mitochondrial function in polar cod Boreogadus saida

Abstract

In this study, impact of dispersed oil on cardiac mitochondrial function was assessed in a key species of Arctic marine ecosystem, the polar cod Boreogadus saida. Mature polar cod were exposed during 48 h to dispersed oil (mechanically and chemically) and dispersants alone. The increase observed in ethoxyresorufin-O-deethylase activity and polycyclic aromatic hydrocarbon metabolites in bile indicated no difference in contamination level between fish exposed to chemical or mechanical dispersion of oil. Oil induced alterations of O 2 consumption of permeabilised cardiac fibres showing inhibitions of complexes I and IV of the respiratory chain. Oil did not induce any modification of mitochondrial proton leak. Dispersants did not induce alteration of mitochondrial activity and did not increase oil toxicity. These data suggest that oil exposure may limit the fitness of polar cod and consequently could lead to major disruption in the energy flow of polar ecosystem.
Fichier principal
Vignette du fichier
Impact_of_dispersed_fuel_oil_on_cardiac.pdf (205.7 Ko) Télécharger le fichier
Origin Publisher files allowed on an open archive
Licence

Dates and versions

hal-04351030 , version 1 (21-12-2023)

Licence

Identifiers

Cite

Matthieu Dussauze, Lionel Camus, Stéphane Le Floch, Karine Pichavant-Rafini, Perrine Geraudie, et al.. Impact of dispersed fuel oil on cardiac mitochondrial function in polar cod Boreogadus saida. Environmental Science and Pollution Research, 2014, 21, pp.13779 - 13788. ⟨10.1007/s11356-014-2618-0⟩. ⟨hal-04351030⟩
16 View
9 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More