Summary results from a pilot study conducted around ...



Title Summary results from a pilot study conducted around an oil production platform on the Northwest shelf of Australia
Author(s) S. C. King, J. E. Johnson, M. L. Haasch, D. A. J. Ryan, J. T. Ahokas, K. A. Burns
Journal Marine Pollution Bulletin
Date 2005
Volume 50
Issue 11
Start page 1163
End page 1172
Abstract The Australian Institute of Marine Science (AIMS) conducted a pilot study around the Harriet A oil production platform oil the Northwest Shelf of Australia. We evaluated hepatic ethoxyresorufin-O-deethylse (EROD) activity, fluorescent aromatic compounds (FACs) in bile and immunodetection of CYP1A-like proteins in two Australian tropical fish species, Gold-Spotted Trevally (Carangoides fulvoguttatus) and Bar-Cheeked Coral Trout (Plectropomus maculalus) to assess exposure to petroleum hydrocarbons associated with produced formation water (PFW). Additionally, the incidence of hydrocarbon-degrading bacteria isolated from the liver and bile of all fish captured was examined. Low EROD activity was found in both species, with EROD activity in C fulvoguttatus showing significant site differences. FACs and CYP1A protein levels in C. fulvoguttatus showed a clear trend in hydrocarbon exposure consistent with hydrocarbon chemistry data: Harriet A > Harriet C > reference site. P. maculatus showed elevated levels of FACs at Harriet A as compared to the reference site and demonstrated detectable levels of CYP1A-like proteins at these two sites. Hydrocarbon-degrading bacteria were found in the liver and bile of both species, yet there was no correlation by sites. Our results demonstrate that C fulvoguttatus and P. maculatus have potential as indicator species for assessing the effects from exposure to petroleum hydrocarbons. Both FACs and CYP1A Lire providing warning signs that there is potential for biological effects oil fish populations exposed to PFW around the Harriet A production platform. (c) 2005 Elsevier Ltd. All rights reserved.

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