Intersex in feral brown trout from Swiss midland rivers

Authors: Körner, O.¹; Vermeirssen, E. L. M.²; Burkhardt-Holm, P.¹

Source: Journal of Fish Biology, Volume 67, Number 6, December 2005 , pp. 1734-1740(7)

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Abstract:

The incidence of intersex in feral populations of brown trout Salmo trutta in Switzerland is reported. The affected brown trout showed spermatogenic activity in ovarian tissue.

Keywords: brown trout; endocrine disruption; gonad; intersex; ovotestis; Salmonidae

Document Type: Research article

DOI: http://dx.doi.org/10.1111/j.1095-8649.2005.00862.x

Affiliations: 1: Programm Mensch-Gesellschaft-Umwelt, University of Basel, Vesalgasse 1, CH-4051 Basel, Switzerland and 2: Swiss Federal Institute of Aquatic Science and Technology, Überlandstrasse 133, Postfach 611, 8600 Dübendorf, Switzerland

Publication date: 2005-12-01