A Review on Interaction Between Hydrodynamics and Organisms in River Turbulent Flow

Most of methods to determine environmental flow in Iran have been dealt with the required depth for movement of target species whilst that interaction of flow and turbulence in river morphology should be paid more attention. Flow turbulence could be of significance in rivers, however, it has rarely been considered in river restoration and habitat evaluation, due to its complexity. In this paper, attempts have been made to review the interaction between hydrodynamics and organisms and their measurements in rivers to signify the turbulence investigation in river management. In this concern turbulence properties related to the flow environment (i. e. inclusive, intensity, frequency and flow structures) have been studied. In addition, role of vegetation cover and organisms have been investigated in-depth in the flow structures. In this connection, potential threats and opportunities have been put forward for river wildlife conservation. With regards to limited knowledge of this topic in Iran, this research could enable scientists and practitioners to understand the challenges for interaction of turbulence and restoration, particularly ecologically, in rivers.