But how? It is technically infeasible to try and remove cats from a large river system. You'd never get them all. Not only that but you have to consider all life stages. Its simply impossible. Add to this the fact that some water within the floodplain will still likely contain them and its only before they were once again "introduced".Liphook wrote: ↑Wed Mar 09, 2022 3:25 pm Surely the EA, CRT, NE etc should be removing these non natives? The CRT are/were trying to remove zander in certain areas. Stocking a truly enclosed stillwater is one thing but having them our rivers are quite another. The movement of species without proper forethought almost always has serious ramifications in the long run.
The CRT zander cull is driven my a few factors. To date I've only seen a single paper looking at the impact of zander in canal like systems. Interestingly they eat a lot of bullhead!