6533b871fe1ef96bd12d1916
RESEARCH PRODUCT
Recovery of Historically Contaminated Watercourse Polluted by the Chemical Wood Industry: EROD Activity in Fish as Biomarker
Aimo OikariAntti T. RusanenHeli M. RatiaEeva-riikka Vehniäinensubject
endocrine systemPerchanimal structuresbiologyurogenital systemanimal diseasesHealth Toxicology and MutagenesisSoil ScienceSedimentBiotabiology.organism_classificationPollutionFisheryBorealEnvironmental ChemistryEnvironmental scienceJuvenileRainbow troutRutilusEffluentdescription
Despite outstanding process alterations over decades, pulp- and paper-mill-contaminated sediments and continuing exposure by the effluents may still have effects on biota. In this study, ecotoxicological impacts in the boreal watercourse were analyzed by measuring ethoxyresorufin-O-deethylase (EROD) induction from wild fish populations and from experimentally exposed fish. In order to assess the role of sediment-borne chemicals, juvenile rainbow trout (Oncorhynchus mykiss) were exposed in the laboratory to the surface sediments of Lake Vatianjarvi and Southern Lake Saimaa, both watercourses impacted by the chemical wood industry for approximately a century. Hepatic EROD activity was also measured from roach (Rutilus rutilus) and perch (Perca fluviatilis) caught in Lake Vatianjarvi. Increased EROD activity was not observed in wild fish caught in Lake Vatianjarvi nor in rainbow trout exposed to the sediment of Lake Vatianjarvi, but it was observed in rainbow trout exposed to the sediment of Southern Lake Sa...
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2013-09-20 | Soil and Sediment Contamination: An International Journal |