Summary

Description

Invasive non-native species surveyed and collected during the Environment Agency monitoring activities including location and date of survey. Primarily aquatic and riparian species. Location and date of survey are recorded from 1970 onwards. 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 full Environment Agency species data holding compromises Non-native species Protected Species and Native Non-Protected Species ["other" species].