title: Detecting a field gradient of PAH exposure in decapod crustacea using a novel urinary biomarker.
abstract: Norwegian coastal waters are subject to PAH contamination from electrochemical industries such as aluminium smelters. Evidence of PAH exposure has been established in fish and bivalves. The present study tests the applicability of a novel crustacean PAH exposure biomarker to a PAH contamination gradient in the field (Karmsund Strait, SW Norway). Fluorescence analysis of urine samples collected from crabs at each site revealed 1-OH pyrene "equivalent" levels (indicative of pyrogenic PAH contamination) decreased with increasing distance from a point source of pyrogenic PAH (a large aluminium works). The assay was shown to be suitable for the detection of PAH exposure in wild crustacean populations, for discriminating between contaminated and clean sites and is also sufficiently sensitive to detect gradients of PAH contamination. The method provides a rapid, inexpensive and non-destructive measure of biologically available PAH in crustaceans.
authors.affiliation: Plymouth Environmental Research Centre, School of Biological Sciences, University of Plymouth, Drake Circus, Plymouth PL4 8AA, UK. gwatson@plymouth.ac.uk
authors.forename: G M
authors.initials: GM
authors.lastname: Watson
authors.forename: O-K
authors.initials: OK
authors.lastname: Andersen
authors.forename: M H
authors.initials: MH
authors.lastname: Depledge
authors.forename: T S
authors.initials: TS
authors.lastname: Galloway
mesh_terms: D000818:Animals; D015415:Biomarkers; D003386:Brachyura / Q000737:chemistry*; D004781:Environmental Exposure; D005843:Geography; D007220:Industrial Waste / Q000032:analysis; D008297:Male; D009664:Norway; D011084:Polycyclic Aromatic Hydrocarbons / Q000032:analysis*; D011721:Pyrenes; D012623:Seawater / Q000032:analysis*; D012680:Sensitivity and Specificity; D013050:Spectrometry, Fluorescence; D014556:Urine / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000032:analysis*
chemical_list: D015415:Biomarkers; D007220:Industrial Waste; D011084:Polycyclic Aromatic Hydrocarbons; D011721:Pyrenes; D014874:Water Pollutants, Chemical