In its December issue Utne has a nice summary of ongoing attempts to privatize the ocean for what's called "open ocean aquaculture." (Sorry, you have to be a Utne subscriber to view the article online). You can read about those efforts here and in this enthusiastic article in Wired Magazine which touts open ocean aquaculture as the solution to overfishing. You won't be so enthusiastic when you realize the full implications of such a move: privatization of the ocean, pollution, possible release of genetically altered species and more.
In case you think this is something to worry about in the future, the National Oceanic and Atmospheric Administration is working on regulations to present to Congress next year.
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