Here are some useful numbers if anyone feels the urge.
North Wales fisheries officer
Phil Capper ...........................07920134249
This number is only to be used between the hours of 9 am until 5 pm
Environment Agency number ..............0800 80 70 60
It may also be worth contacting the local council to tell them the nets are attached to the groynes, and the netter is leaving dead fish on the beach. Anything thats likely to scare the tourists away might spur them into action?
I havent been down myself, but apparently the guys mobile number is on the buoy of each net, along with the words KEEP OFF.