Instream habitat assessment: a geomorphological approach

Instream habitat assessment methods are required to evaluate the biological quality of streams in relation to flow and channel morphology and to distinguish the effects of river management on the instream biota. A range of techniques are described and developed in this study ranging from a simple reconnaissance survey to the detailed Physical Habitat Simulation Model (PHABSIM) in order to establish a method for the classification of river channels, identification of key parameters that determine the biota and assessment of the influence of flow and bed morphology on habitat availability. [Continues.