Title of article
Use of biochemical biomarkers as a screening tool to focus the chemical monitoring of organic pollutants in the Biobio river basin (Chile)
Author/Authors
Sanchez-Hernandez J. C.، نويسنده , , Fossi M. C.، نويسنده , , Leonzio C.، نويسنده , , Focardi S.، نويسنده , , Barra R.، نويسنده , , Gavilan J. F.، نويسنده , , Parra O.، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 1998
Pages
12
From page
699
To page
710
Abstract
Sediment and water from the Biobio river basin (Central Chile) were used in a simulated field-exposure experiment with juvenile rainbow trout. After two weeks of exposure, brain acetylcholinesterase (ACNE), liver carboxylesterase (CbE) and cytochrome P4501A1 (CYP1A1) activities were measured. Esterase activities did not show significant variations between trout exposed to sediment and water. Sediment was found to contain pollutants that induced CYP1A1 catalytic activity. Chemical analysis of these inducers revealed that PAHs were the main contaminants (mean content of 5,818 ng g-ʹ d.w.) causing measurable effects in biota. This study shows that from an ecotoxicological point of view, it is useful to test certain biochemical biomarkers before monitoring chemicals in the aquatic environment.
Keywords
CYPIAI , esterases , PAHs , Biobio river. , PCBs
Journal title
Chemosphere
Serial Year
1998
Journal title
Chemosphere
Record number
723770
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