If I had to name one industry that had been worst hit by EU membership it would be the UK fishing industry. Placed under a Common Fishing Policy from the early days, the EU has done grave damage to what was one of our most impressive ventures. The UK has been driven from self sufficiency and good exports of fish to import dependence. We have had to watch as non UK boats have come into our waters under EU licence and taken the majority of the catch.
In the early days of the Common Fishery Policy too much fish was taken, doing further damage to the fishery. When the EU awoke to the damage being done, tougher quotas were imposed which favoured non UK fishing fleets, especially the French. If we look at the 2015 quota allocations for the main areas for cod and haddock they show (VIIbc,VIIe-k,VIII,IX,X, CECAF 34.1.1):
Cod France 70-84% of Total Allowable catch
Haddock France 55-66.7% of Total Allowable catch
Sole France 14.3% to 54%
The great fishing fleets of Grimsby, Hull, Lowestoft have been slashed by the decline of the fishery and unfair distribution of the quota. Out of the EU the UK can reassert control out to 200 miles or to the median line with a neighbouring state. We can negotiate shared access with neighbours without being outvoted by 27 other member states under the majority voting system of the EU.
Freed of EU control we could have a policy which helps restore our fishery and allocates more catch to UK vessels.
(Figures taken from ec.Europa.eu/fisheries/documentation/publications/poster tac2015 en.pdf)