A think tank has made a controversial case for freezing fishing in Europe, saying most fish stocks would return to sustainable levels within five years.
The London-based New Economics Foundation (Nef) argues in its report that the suspension would generate billions of pounds in profits by 2023.
Private investment would compensate fishermen and maintain boats.
A senior UK fishing industry representative said stocks were already improving and the idea made no sense.
Unsustainable fishing remains a major issue for the EU, where 75% of stocks are still overfished and catches are only a fraction of what they were 15-20 years ago.
The European Parliament approved measures this week against third countries which allowed the practice.
However, Maritime and Fisheries Commissioner Maria Damanaki recently reported progress in the fight to reduce overfishing.
In its report, No Catch Investment, Nef said it had calculated the costs of restoring fish stocks and found they were far outweighed by the economic benefits in the short and long term.
It looked at 51 out of 150 commercial fish stocks, including hake, mackerel, whiting and Icelandic cod.
Most, it said, could be restored to sustainable levels within five years, with some varieties such as certain mackerel and herring needing less than a year.
However, some stocks of cod and halibut would take at least nine years to replenish, the Nef report found.
The think tank calculated that private investment of