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Title

Blood biomarkers and contaminant levels in feathers and eggs to assess environmental hazards in heron nestlings from impacted sites in Ebro basin (NE Spain)

AuthorsBarata Martí, Carlos CSIC ORCID ; Fabregat, M. C.; Cotín, J.; Huertas, David; Solé, Montserrat CSIC ORCID ; Quirós, Laia CSIC; Sanpera, Carolina; Jover, Lluís; Ruiz, Xavier; Grimalt, Joan O. CSIC ORCID ; Piña, Benjamín CSIC ORCID
KeywordsTotal oxyradical scavenging capacity
Esterases
Lactate dehydrogenase oxidative stress
Organochlorine compounds
Mercury
Ardeida
Issue DateMar-2010
PublisherElsevier
CitationEnvironmental Pollution 158(3): 704-710 (2010)
AbstractBlood biomarkers and levels of major pollutants in eggs and feathers were used to determine pollution effects in nestlings of the Purple Heron Ardea purpurea and the Little Egret Egretta garzetta, sampled on three Ebro River (NE Spain) areas: a reference site, a site affected by the effluents of a chlor-alkali industry and the river Delta. The two impacted heron populations showed mutually different pollutant and response patterns, suggesting different sources of contamination. In the population nesting near the chlor-alkali plant, elevated levels of hexachlorobenzene (HCB) and polychlorobiphenyls (PCBs) in eggs, and mercury in feathers in A. purpurea chicks were related with reduced blood antioxidant defenses and increased levels of micronuclei. In Ebro Delta, high levels of plasmatic lactate dehydrogenase in A. purpurea chicks and high frequency of micronuclei in blood of both species were tentatively associated with intensive agricultural activities taking place in the area. These results provide the first evidence of a biological response in heron chicks to the release of pollutants at a chlor-alkali plant. High levels of organochlorine and mercury levels in eggs and feathers were related with altered blood biomarkers of heron nesting chicks
Description7 pages, 2 figures, 3 tables
Publisher version (URL)https://doi.org/10.1016/j.envpol.2009.10.018
URIhttp://hdl.handle.net/10261/20418
DOI10.1016/j.envpol.2009.10.018
ISSN0269-7491
Appears in Collections:(ICM) Artículos
(IDAEA) Artículos

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