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Assessing relationships between chemical exposure, parasite infection, fish health, and fish ecological status: a case study using chub (Leuciscus cephalus) in the Bílina River, Czech Republic
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SYSNO ASEP 0338828 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Assessing relationships between chemical exposure, parasite infection, fish health, and fish ecological status: a case study using chub (Leuciscus cephalus) in the Bílina River, Czech Republic Author(s) Wenger, M. (CH)
Ondračková, Markéta (UBO-W) RID, ORCID, SAI
Machala, M. (CZ)
Neča, J. (CZ)
Hyršl, P. (CZ)
Šimková, A. (CZ)
Jurajda, Pavel (UBO-W) RID, SAI, ORCID
von der Ohe, P. (DE)
Segner, H. (CH)Number of authors 9 Source Title Environmental Toxicology and Chemistry - ISSN 0730-7268
Roč. 29, č. 2 (2010), s. 453-466Number of pages 14 s. Language eng - English Country US - United States Keywords multiple stressors ; environmental risk assessment ; exposure biomarkers ; parasites ; fish health Subject RIV GJ - Animal Vermins ; Diseases, Veterinary Medicine R&D Projects LC522 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60930519 - UBO-W (2005-2011) UT WOS 000274272500026 EID SCOPUS 77449090892 DOI 10.1002/etc.57 Annotation The present study, investigated the chub (L. cephalus), in the Bílina River (CR), which is impacted by various pollution sources and might pose a risk on the fish. It was examined whether there exists an association between chub and exposure to toxic chemicals and parasites. Toxic pressure was assessed by the toxic unit approach, which gives an integrative estimate of toxic effect concentrations and by measuring the biomarkers cytochrome P4501A and vitellogenin. Parasite pressure was estimated by determining abundance and species composition of parasites. Toxic pressure increased in the downstream direction, while parasite intensity decreased in this direction. Health status of chub did not differ clearly between sites. It appears that neither toxic pressure nor parasite pressure nor does their combination translate into a change of chub health status. This study provides evidence against a presumed causative role of toxicants impairing the fish populations of the Bílina River. Workplace Institute of Vertebrate Biology Contact Hana Slabáková, slabakova@ivb.cz, Tel.: 543 422 524 Year of Publishing 2010
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