Economists have proposed that market principles could be put to work by appropriate regulations, and there have been some trials.
For example, the fish catch could be limited by licenses. Each license would entitle the holder to catch a limited number of fish of a certain species.
However, the licenses would be salable, so that larger-scale efficient fishermen could buy up licenses from the smaller fishermen, and fish at an efficient scale.
And at least the little guys would have something -- the market price of the license -- to apply toward the retirement fund.
A scheme of this kind was actually enacted two years ago in the US, but I'm not sure it has been put into effect. It may have come too late.