The establishment of a precautionary approach has set what's called conservation limits for stocks. For example, we've seen growth in American plaice, but we have not seen it across the threshold of the conservation limit. Therefore there's no talk about having directed fisheries.
In 3M, the scientific council said both cod and redfish had exceeded the conservation limit, and small fisheries could have been opened. In the past that might have happened, but this time they wanted the fishery to get bigger so it would be more robust when the time came.
It means you don't get into a debate about how much fish you can take. If it's below the conservation limits, you just leave it closed.