This has been set up to help control the population of Signal Crayfish in ponds at Bulwell Hall in order to help protect populations of native Crayfish further up stream in the River Leen. For more about the project see link to information sheet  www.southnottswildlife.org.uk/content/?attachment_id=1042. The project is being run by the Notts Biodiversity Action Group. Most of the control work is being done by volunteers and if you wish to assist please contact Chris Jackson chris.jackson@no,scc.gov.uk