In most cases when you have licences changing hands, they'll move to an area where the fishery is more lucrative. Certain areas become more concentrated over a period of time, and the chance of the stocks rebounding in those areas becomes reduced.
We have an aging population of fishermen. It would be a natural cull, if you want to use the word, of fishermen right now. If you have people who want to get out of the fishery, the best time to do it is when the oldest people want to get out.
For example, if you took one fisherman out of a certain area, that's 300 traps removed from the water right there. Over a period of time, if those 300 traps caught, say, 10,000 pounds, then compound that over, not just the year they're taken out of the water, but all the years in the future. That 10,000 pounds is left in the water to multiply. You get a real spin-off effect.
If you do other anecdotal things, they don't seem to work.