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Title: Identifying major pesticides affecting bivalve species exposed to agricultural pollution using multi-biomarker and multivariate methods
Author: Damasio, Joana
Navarro-Ortega, Alícia
Tauler, Romà
Lacorte, Silvia
Barcelo, Damià
Soares, Amadeu M. V. M.
López, Miguel Angel
Riva, Mari Carmen
Barata, Carlos
Keywords: Pesticide
Corbicula fluminea
Oxidative stress
Issue Date: 2010
Publisher: Springer Verlag
Abstract: The aim of this investigation was to identify major pesticides that may cause detrimental effects in bivalve species affected by agricultural pollution. Investigations were carried out using freshwater clams (Corbicula fluminea) transplanted in the main drainage channels that collect the effluents coming from agriculture fields in the Ebro Delta (NE Spain) during the main growing season of rice (from May to August). Environmental hazards were assessed by measuring simultaneous up 46 contaminant levels and 9 biomarker responses. Measured biological responses showed marked differences across sites and months. Antioxidant and esterase enzyme responses were in most cases inhibited. Lipid peroxidation levels increased steadily from May in upstream stations to August in drainage channels. Principal Component (PCA) and Partial Least Squares to Latent Structure regression (PLS) analyses allowed the identification of endosulfan, propanil, and phenylureas as being the chemical contaminants causing the most adverse effects in the studied species.
Peer review: yes
DOI: 10.1007/s10646-010-0490-3
ISSN: 0963-9292
Appears in Collections:CESAM - Artigos
DBio - Artigos
PT Mar - Artigos

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