MADRID, June 6 (Reuter) - EU Fisheries Commissioner Emma Bonino said on Tuesday Spanish fishermen risked losing public support in Europe by blockading Moroccan fish imports.

"There's no doubt that acts of violence turn European public opinion against the Spanish," Bonino told Spanish radio.

"We need to bear in mind - the Andalusians above all - that when we fish in other countries' waters, we don't have an automatic right to be there."

Spanish fishermen have prevented Moroccan fish imports leaving Andalusian ports for weeks in protest at Rabat's call for sharp cuts in European fishing quotas as part of any new bilateral accord with the EU.

The blockade was briefly extended to all Moroccan imports and fishermen in Almeria and Algeciras have said it will be maintained until a satisfactory agreement is reached.

"These are illegal acts which seem to me totally unacceptable," Bonino said. "The atmosphere is tense and it's not helping the European Commission."

Morocco's three-year fishing agreement with the European Union ran out at the end of April. The two sides have failed to agree a new one and until they do, the Spanish-dominated EU fleet cannot trawl Moroccan waters.

A fifth round of talks ended in deadlock in Rabat last week and EU negotiators said on Tuesday an agreement was still a long way off. No date has been set for further negotiations.

Morocco has demanded cuts in EU fishing quotas of 30, 50 and 65 percent dependent on species, while the European Union has proposed cuts between 10 and 30 percent.

Bonino, who was due to meet Spanish Prime Minister Felipe Gonzalez and Fisheries Minister Luis Atienza for talks in Madrid on Friday, said Spain's fishermen should tap grounds elsewhere until a new agreement with Morocco is reached.

"There are other seas they can fish like the South Atlantic or the Indian Ocean," she said.

"The fishing sector must modernise itself, and turn its attention to commerce as well as captures. It needs to confront the globalisation of the world market."