Just come back from a trip home in Hampshire. Had a days fishing on Basingstoke canal.
Caught 2 of these beasts. The baliff told us to take them home and eat them or destroy them but don't put them back.
They've become a real epidemic. In a stretch of water nearer Reading they used commercial fishermen to try and take them and in the space of a week they removed 50,000!!
Down there they believe a restaurant by the water in reading shut down so an empolyee just threw them into the river without thinking. It's gonna be a hell of a job getting rid of them.