The crisis in the eurozone is resulting in lower prices for some species exported to countries such as Spain, Portugal and Italy.
A significant proportion of the UK catch is exported, particularly high value species such as megrim, monkfish, hake and shrimp.
But as the financial problems engulfing the eurozone deepen, merchants are finding it more and more difficult to sell fish there and prices for some of these species have fallen considerably.
The price of megrim for example, most of which goes to Spain, has “all but collapsed,” said Paul Trebilcock, chief executive of the Cornish Fish Producers' Organization.
He said 90 percent of his members’ megrim goes to Spain, and while prices had been volatile for the last two years or so they had now “all but collapsed."
Hake was also badly affected, but the fall there has been mitigated to some extent because the UK market has been developed.
“We are now getting somewhere around £2.50