| Impact ID | 5655 |
| Impact Type | Recreation |
| Study Type | Anecdotal |
| Study Location | N/A |
| Impact Description | Crassula helmsii is one of ten weed species in England that have a negative impact on angling and is estimated to cost angling 170,636 pounds across the 10km affected stretch of river. Removal of Crassula helmsii ranges from 1,450-7,225 pounds per pond. |
| Reference | 39944 |
| Cost | |
| Location | England |