Over the summer of 2023, a riverside survey of invasive species of plant was commissioned by Greater Manchester Combined Authority as part of Natural Course. The survey is a detailed snapshot of the invasive non-native species (INNS) issues on the River Tame catchment and how issues may arise downstream on…

Invasive, non-native species (INNS) of plant are a major threat to the health of our rivers and are also damaging to the wider environment and economy. Between June and October 2022, we conducted the largest and most comprehensive survey of INNS plants of the Irwell catchment. Greater Manchester Combined Authority…