Already world leaders in Salmon farming (though losing a bit of ground to the Chileans), the Norwegians are taking on the mighty cod.
Seed:

"TROMSOE, Norway (AFP)—After perfecting the art of salmon farming, Norwegians now hope to repeat the success with the trickier cod, which has been fished to near extinction in some parts of the world.
‘The success of the farmed salmon is part of the reason for the optimism we see in cod farming today,’ says Jens Oestli of the Norwegian Institute of Fisheries and Aquaculture Research in Tromsoe in northern Norway.
This Scandinavian nation began salmon farming in the 1960s. It now exports three times more farmed salmon than wild salmon, attaining 383,085 tonnes in 2005.
Cod farmers are now gambling on a similar boom."

Fish farmers in Canada are engaged in similar research, notably the Atlantic Cod Genomics And Broodstock Development project. Link.  It’s obvious to me that we need to move the large-scale exploitation of sea food into an agricultural model, away from our hunter gatherer ways, or we’ll lose these resources altogether.