Here is a link to a video that highlights the issues with eel passage. There is no dispute that eels can migrate over vertical structures such as Catrine Weir. But what about those that can’t make it, or that are predated, the huge amount of energy required to climb and the congregation of fish at an obstacle and the problems that are inherent with this?
This is why the Trust has installed two eel passes this year. With eel numbers declining rapidly improving the permeability of their habitat is crucial to their long term success. Simple solutions such as bristle brushes and the Trust’s large ‘rope brush’ will go a long way to helping eels on their migration.