  Several external sources may change the river's geomorphology, hydrodynamic
characteristics, and water quality. Therefore, having a comprehensive
assessment of the rivers' hydrodynamic would bring the preliminary information
to reduce the human-made structures' short- and long-term effects on a
different aspect of a region. An automated GIS toolbox is developed in the
present study, which interpolates the hydrodynamic data from the HEC-RAS
hydrodynamic model. A suitable fish habitat model is designed in the GIS
toolbox, which uses the hydrodynamic interpolation result to assess the
suitable habitat for aquatic species. In the study, different fish species'
physical properties were considered to be used in conjunction with the
hydrodynamic model to generate the habitat suitability raster datasets. This
study provides the designers and scholars with a graphical interface of the GIS
platform to model the potential migratory maps of the fish species under
different hydrodynamic conditions.
