Trends in hepatic tumours and hydropic vacuolation, fin erosion, organic chemicals and stable isotope ratios in winter flounder from Massachusetts, USA

contaminantes dde ddt efectos secundarios effet secondaire eua fishes halogenated hydrocarbons hidrocarburos halogenados insecticidas insecticide insecticides lodos residuales massachusetts nontarget effects organochlorine compounds peces poisson (animal) polluant pollutants residues residuos sewage sludge side effects usa