Mapping and scoring the barriers, and in addition using local and expert knowledge has allowed us to prioritise where to work for the best wins for eels. This could be removal of a barrier or a series of barriers, installation of eel passes or a bypass channel. Improving rivers for eels will also improve rivers for other wildlife species too.
Purple markers show baseline data of existing barriers.
Green markers show ObstacEELS surveyed barriers, made up of previously unrecorded barriers and the existing barriers with more detailed data now collected.
Map made by Thames Estuary Partnership.