Endocrine disruption in juvenile roach from English rivers: a preliminary study

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†Tel.: +44 (0) 1895 274000 ext. 2805; fax: +44 (0) 1895 274348; email: nicola.beresford@brunel.ac.uk

Abstract

Juvenile roach Rutilus rutilus from seven rivers of varying water quality were examined for evidence of endocrine disruption. The majority of roach from five of these rivers had female-like reproductive ducts. The results suggest that juvenile, rather than adult, fish could be used in studies of endocrine disruption in wild fish populations.

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