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Title

The combined use of chemical and biochemical markers to assess water quality along the Ebro River

AuthorsLavado Parra, Ramón; Ureña, Rocio; Martin-Skilton, Rebeca; Torreblanca, Amparo; Ramo, José del; Raldúa, Demetrio CSIC ORCID ; Porte Visa, Cinta CSIC ORCID
KeywordsCarp
Metallothioneins
Cytochrome P450
Acetylcholinesterase
Bioaccumulation
Pollution
Issue Date1-Jan-2006
PublisherElsevier
CitationEnvironmental Pollution 139(2):330-339 (2006)
AbstractCarp (Cyprinus carpio) and barbel (Barbus graellsii) were collected from five sites along the Ebro River. The study was designed to assess levels of persistent organic pollutants and metals bioaccumulated by fish, and some biochemical responses (cytochrome P450 system, phase II activities, and metallothioneins) against those pollutants. The highest levels of PCBs and DDTs were detected in carp from industrialised areas, which also showed high levels of mercury and cadmium in the liver, and high levels of nonylphenol in bile. Significant alterations in some biochemical markers were observed and associated to combined exposure to pollutants. The activity 7-ethoxyresorufin O-deethylase ranged from 69 pmol/min/mg protein in carp from the reference site to 415 pmol/min/mg protein in those from polluted sites. Carp from the Ebro Delta, an agricultural area, had depressed acetylcholinesterase in muscle tissue. Metallothionein concentrations were positively correlated with copper residues, but no significant differences among sampling points were observed
Description10 pages, 4 figures, 4 tables.
Publisher version (URL)http://dx.doi.org/10.1016/j.envpol.2005.05.003
URIhttp://hdl.handle.net/10261/11815
DOI10.1016/j.envpol.2005.05.003
ISSN0269-7491
Appears in Collections:(IDAEA) Artículos

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