Author(s)

S. Dzeroski, J. Grbovic, W.J. Walley & D. Demsar

Abstract

We use data from biological river quality surveys in Slovenia in the period of 1990-1995 to derive bioindicator saprobic values and weights which mir- ror the ones assigned by ecological experts. This study is motivated by a computer-based reappraisal of the Biological Monitoring Working Party scores using data from the 1990 river quality survey of England and Wales, where the revised scores substantially differed from the original in several cases. We discuss the revised bioindicator saprobic values and weights where significant differences ap

Keywords