ENVIRONMENT Agency bailiffs netted 47 people fishing illegally in a recent crackdown across Yorkshire.
They visited 35 waters and checked the rod licences of around 400 anglers.
Of those, over 10 per cent, were reported for fisheries offences, mainly because they were found to be fishing without a rod licence.
They could now face fines of up to £2,500.
Fisheries technical officer Peter Mischenko said: “Our bailiffs routinely patrol still- water fisheries, canals and rivers all over Yorkshire.
“The message from this latest blitz is very clear – if you are thinking about going out to fish without a licence, the likelihood is that you are going to get caught and ultimately prosecuted.
“It can cost as little as £27 to buy a rod licence.”
All the money the Environment Agency receives from rod-licence sales is spent improving, maintaining and protecting fisheries.
That includces surveying, disease control, restocking, habitat improvement and monitoring potentially harmful planning applications.