Monitoring pollution in river Mure , Romania, Part III: biochemical effect markers in fish and integrative reflection

Köhler, Heinz-R; Sandu, Cristina; Scheil, Volker; Nagy-Petric¿, Erika M; Segner, Helmut; Telcean, Ilie; Stan, Gheorghe; Triebskorn, Rita (2007). Monitoring pollution in river Mure , Romania, Part III: biochemical effect markers in fish and integrative reflection. Environmental monitoring and assessment, 127(1-3), pp. 47-54. Dordrecht: Kluwer 10.1007/s10661-006-9257-y

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Along a downstream stretch of River Mure , Romania, adult males of two feral fish species, European chub (Leuciscus cephalus) and sneep (Chondrostoma nasus) were sampled at four sites with different levels of contamination. Fish were analysed for the biochemical markers hsp70 (in liver and gills) and hepatic EROD activity, as well as several biometrical parameters (age, length, wet weight, condition factor). None of the biochemical markers correlated with any biometrical parameter, thus biomarker reactions were related to site-specific criteria. While the hepatic hsp70 level did not differ among the sites, significant elevation of the hsp70 level in the gills revealed proteotoxic damage in chub at the most upstream site, where we recorded the highest heavy metal contamination of the investigated stretch, and in both chub and sneep at the site right downstream of the city of Arad. In both species, significantly elevated hepatic EROD activity downstream of Arad indicated that fish from these sites are also exposed to organic chemicals. The results were indicative of impaired fish health at least at three of the four investigated sites. The approach to relate biomarker responses to analytical data on pollution was shown to fit well the recent EU demands on further enhanced efforts in the monitoring of Romanian water quality.

Item Type:

Journal Article (Original Article)

Division/Institute:

05 Veterinary Medicine > Department of Infectious Diseases and Pathobiology (DIP) > Center for Fish and Wildlife Health (FIWI)

UniBE Contributor:

Segner, Helmut

Subjects:

600 Technology > 630 Agriculture

ISSN:

0167-6369

Publisher:

Kluwer

Language:

English

Submitter:

Factscience Import

Date Deposited:

04 Oct 2013 14:53

Last Modified:

23 Jul 2014 15:38

Publisher DOI:

10.1007/s10661-006-9257-y

PubMed ID:

16957855

Web of Science ID:

000244687000004

URI:

https://boris.unibe.ch/id/eprint/22684 (FactScience: 35954)

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