Come and meet the alien species in Norwich city

Signal crayfish is a non native species to Norfolk

Signal crayfish is a non native species to Norfolk - Credit: Archant

An 'alien spaceship' will land in Norwich tomorrow to help the Broads Authority raise awarness of non-native wildlife.

The non native Dikerogammarus villosus shrimps were first found at Barton Broad in March 2012, and t

The non native Dikerogammarus villosus shrimps were first found at Barton Broad in March 2012, and then spread to the River Ant and Wroxham Broad. - Credit: Archant

Experts from the Norfolk Non-native Species Initiative and the Environment Agency will be at Eaton Vale Activity Centre in Church Lane from 1pm to 7pm to introduce people to the types of alien species invading the county, from killer shrimp (Dikerogammarus villosus) and mink to signal crayfish and fast-growing non-native plants.

Passers-by will be able to use microscopes to take a closer look at some non-native invertebrates.

Will Burchnall, wetland biosecurity officer, said: 'Once these invaders get a foothold they can spread rapidly, killing our native species and harming our recreational facilities by reducing fish populations and restricting navigation.

'We need as many people as possible to come along and learn about them so they have the skills to let us know where these species are and try their best to stop them spreading.'