THE Scottish National Party has been accused of unprecedented interference in the activities of a fishing organisation ''to gain some cheap, political advantage in the run-up to the Scottish elections''.

The claim follows criticism by Richard Lochhead, the SNP fisheries spokesman, of Mike Park, the chairman of the Scottish White Fish Producers' Association. In a letter to George MacRae, association secretary, Mr Lochhead had expressed serious concerns over the role of Mr Park following the launch of the new Fishing Party.

He said he understood Mr Park had taken an active role in setting up the new party and had registered its website.

''I find it difficult to see how Mike can both represent the SWFPA in meetings and negotiations with the SNP (or any other party) in an objective manner when at the same time he is helping to set up another political party,'' wrote Mr Lochhead.

However, the association's response was a unanimous vote of confidence in Mr Park which was also said to be ''a clear statement of disapproval at an attempted interference by the leading members of SNP in the legitimate activities of the association''.

Graeme Murray, chairman of the salesmen's section, said: ''Mike Park has fought tooth and nail for this industry. The SNP would be far better to concentrate their efforts in supporting Mike Park and SWFPA instead of trying to gain some cheap, political advantage in the run-up to the Scottish elections.''

Speaking from Brussels where he has been involved in two days of discussions about the crisis facing the white fish fleet, Mr Park said: ''There is no question about my objectivity. I have never shown any political bias and I will continue to work with all parties because that is my remit.''

Mr Lochhead said: ''I think the response has been a bit over the top given that the SNP were merely seeking reassurance and clarification.''

The row came as it was announced that processors, net makers, and other shore-based companies affected by the fishing crisis are to be given rates relief worth an estimated (pounds) 2m.

However, the Scottish Executive is now to be asked to double the (pounds) 10m transitional aid for the catching sector.