Biological Control of Invasive Signal Crayfish using European Eel stocks

Tuesday 25th April 2017 5:45pm - 7:00pm

Cost £0.00

Event Description

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.

The initial research will run for three years and will measure the impacts of eel reintroduction on the resident signal crayfish population and associated sediment dynamics. This field work will be supplemented by ex-situ experiments to investigate eel-crayfish interactions, particularly the controls on successful feeding on crayfish by eels.

Stephen and Bethany will be presenting on the background to this project and progress so far.

The talk will be presented in Peterborough but broadcast live to Cambridge,
Cranfied and Chelmsford.
For booking and for more information on directions and parking, please email:
– Sharla McGavock ( or Matthew Rickard ( for CAMBRIDGE
– Charlotte Nunns ( for PETERBOROUGH
– Bob Grabowski ( for CRANFIELD
– Tom Andrewartha ( for CHELMSFORD




Atkins Peterborough, Mott MacDonald Cambridge, University of Cranfield & Essex & Suffolk Water Chelmsford


5:45pm - 7:00pm


Stephen Rice and Bethany Worley, Loughborough University