In this week's Science journal there is a brief note on Monaco's proposal to put the bluefin tuna on appendix 1 of the CITES list, making international trade illegal and pretty much stopping its commercial exploitation. This will be tabled on a meeting of CITES later in March. It would be the first commercial marine species to be listed under appendix 1.
Apparently, the stock situation itself does not meet the normal biological criteria (yet) and adopting this proposal would have major consequences for how many other equally or more endangered commercially exploited marine species will be treated in the future. These include some sharks, sturgeon, rays, salmon, grouper ...
Don't hold your breath on this one since this move would transfer control of fisheries to an international body and I expect that all countries with important fisheries and those with a inborn distrust of any international bodies will do whatever is in their power to block the proposal. Moreover, Monaco, a tiny land-locked European "kingdom", isn't exactly a political powerhouse. Still it is an interesting development and it may be a sign of things to come if fisheries continue their decline.
Bart