The pressure of rising fuel costs and credit availability means the Isle of Man's fishing industry may struggle to survive, said an industry spokesman.
According to the chief executive of the Manx Fish Producers' Organisation it has been a tough year for fishermen.
Tom Bryan-Brown said the cost of running a boat was significantly higher than 12 months ago.
He added that members had experienced a poor harvest over the summer which looked likely to continue.
"We had a very, very poor summer with the queenies, and it's looking like this is going to carry on to the scallop season as well.
"With banks restricting who they lend money to, it's thought some fishing businesses may struggle to survive."