EA Non-native species survey

Invasive non-native species surveyed and collected during the Environment Agency (EA)monitoring activities including location and date of survey. Primarily aquatic and riparian species. Any non-native species present in a sample are recorded when they are of the target group, for example Signal Crayfish (Pacifastacus lenisculus) in a benthic invertebrate sample or Canadian pondweed (Elodea Canadensis) in a plant survey. Other non-native species are recorded when seen at or around Environment Agency monitoring sites. Non-native species do not have a specific monitoring programme. These data are peer reviewed. The records are for England only.