River Otter, Devon
cbec, in conjunction with APEM Ltd, conducted habitat modelling on three ~500m long sections on the River Otter, Devon to assess the impacts of changes to the flow regime.
The influence of proposed groundwater abstraction on river base flows may have important impacts on the habitats of various life stage of Atlantic salmon and brown trout. cbec guided a topographic survey of the study reaches in order to apply hydraulic modelling to assess the potential impacts to hydraulic micro-habitat (i.e. depth and velocity combinations) and the wetted-area of mapped habitats. The project has also involved the assessment for fish passage of three weir structures.