Browse

This paper describes the IFIM method (Instream Flow Incremental Methodology) for determining the minimum discharge, which, in addition to hydrological parameters, takes hydraulic, morphological and ichthyic parameters into account as well. The basic principle of the method is the relationship between the fish population and its habitat, i.e. that most of the fish species prefer certain combinations of depths, stream velocities and bed materials. If the values for a species living in the section of the river invest...