title: Acute and long-term biological effects of mechanically and chemically dispersed oil on lumpsucker (Cyclopterus lumpus).
abstract: Concentration dependent differences in acute and long-term effects of a 48 h exposure to mechanically or chemically dispersed crude oil were assessed on juvenile lumpsucker (Cyclopterus lumpus). Acute or post-exposure mortality was only observed at oil concentrations representing higher concentrations than reported after real oil spills. Acute mortality was more apparent in chemically than mechanically dispersed oil treatments whereas comparable EC50s were observed for narcosis. There was a positive correlation between EROD activity and muscle PAH concentration for the lower oil concentrations whereas higher concentrations inhibited the enzyme activity. The incidence of gill tissue lesions was low with no difference between dispersion methods or oil concentrations. A concentration dependent decrease in swimming- and feeding behavior and in SGR was observed at the start of the post-exposure period, but with no differences between corresponding oil treatments. Three weeks post-exposure, fish from all treatments showed as high SGR as the control fish.
authors: Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway. Electronic address: mfr@akvaplan.niva.no.
authors: Marianne
authors: M
authors: Frantzen
authors: SINTEF Materials and Chemistry, Environmental Technology, N-7465 Trondheim, Norway. Electronic address: BjornHenrik.Hansen@sintef.no.
authors: Bjørn Henrik
authors: BH
authors: Hansen
authors: Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway. Electronic address: pge@akvaplan.niva.no.
authors: Perrine
authors: P
authors: Geraudie
authors: Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway; UiT - The Arctic University of Norway, Faculty of Bioscience, Fisheries and Economics, Department of Arctic and Marine Bioscience, N-9037 Tromsø, Norway. Electronic address: jocelyn@akvaplan.niva.no.
authors: Jocelyn
authors: J
authors: Palerud
authors: UiT - The Arctic University of Norway, Faculty of Bioscience, Fisheries and Economics, Department of Arctic and Marine Bioscience, N-9037 Tromsø, Norway. Electronic address: inger.falk-petersen@uit.no.
authors: Inger-Britt
authors: IB
authors: Falk-Petersen
authors: Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway. Electronic address: gro@akvaplan.niva.no.
authors: Gro H
authors: GH
authors: Olsen
authors: Akvaplan-niva, Fram Centre, N-9296 Tromsø, Norway. Electronic address: lc@akvaplan.niva.no.
authors: Lionel
authors: L
authors: Camus
mesh_terms: D000818:Animals; D019363:Cytochrome P-450 CYP1A1 / Q000378:metabolism; D004789:Enzyme Activation / Q000187:drug effects; D005247:Feeding Behavior / Q000187:drug effects; D005880:Gills / Q000187:drug effects*; D008099:Liver / Q000187:drug effects*; D009043:Motor Activity / Q000187:drug effects*; D010473:Perciformes / Q000502:physiology*; D010578:Petroleum / Q000633:toxicity*; D059392:Petroleum Pollution; D053608:Stupor / Q000139:chemically induced; D013501:Surface-Active Agents / Q000633:toxicity; D014874:Water Pollutants, Chemical / Q000633:toxicity*
chemical_list: D010578:Petroleum; D013501:Surface-Active Agents; D014874:Water Pollutants, Chemical; D019363:Cytochrome P-450 CYP1A1
keywords: Arctic; Dispersion; EROD; Fish; Growth; Histology; LC(50)/EC(50)