This is a reply I received concerning nets off meggies burn on blyth beach last year.
I don't know if arthur is still there but you can try and contact him
"When were these nets shot off "Meggies Burn"? there have been some set lines of baited hooks set in that area over a couple of tides this winter. During the summer months, the Licensed Salmon netters can actually anchor their net on the beach at one end, though they must be in attendance, as a Salmon net is a top set net, the top line floating on the surface. these nets should never be left unattended by the licence holder. If you do witness a net being left, please contact me immediately and I will deal with them. No net should be indiscriminately set, especially very close in, these are probably illegal Salmon poachers and need to be reported to the environment agency on: 0800 807060 as a poaching incident, and they will deal with the net and its owners through the courts.
I do understand your concerns for water user safety, but with 79 miles of coastline in Northumberland I would hope there is room for everyone.
Regards
Arthur
Arthur Cranson.
South East Northumberland Coastal Warden
Tel: 01670 797323 Mobile: 07932440838"