CIWEM East Anglia branch are holding a talk on the biological control of crayfish using eels.
Invasive signal crayfish (Pacifastacus leniusculus) are well-known for their negative effects on native flora and fauna. However, signal crayfish also affect river geomorphology, with possible implications for flood risk. Burrowing in river banks, fighting, and foraging for food, causes significant sediment loading and bank destabilisation. This is of particular concern for flood prone rivers where sedimentation is a contributing factor.
Reducing the number of signal crayfish would help manage this problem, but an effective, affordable method of population control remains elusive. Biological control using the European eel (Anguilla anguilla) has been shown to be effective in closed water bodies in southern Europe. A reach on the River Bain, Lincolnshire, is now the focus of a pilot study in the UK.
For more information about the event and how to book your free place please click here