Better writeup here: https://ourworld.unu.edu/en/systems-thinking-and-the-cobra-e...
[0] https://teara.govt.nz/en/possums/page-1 [1] https://www.stuff.co.nz/business/2434006/A-hard-road-to-poss...
"A female lionfish lays an average of twenty-seven thousand eggs every two and a half days."
This reproduction looks to be so prolific that cheating isn't required.
The ultimate solution to all of these problems is going to be a gene drive.
Especially for the lionfish, edits that leave only male offspring will wipe out the problem in the Atlantic.
The United States may condemn and punish such action, but the rest of Central and South America justly want their fishing industry back, and the outbreak likely came from the U.S. in the first place.
When a gene drive is sufficiently cheap and accessible, one of them will release it.
First, introduced species tend to, by definition, not breed with the 'original habitat' population, simply because they're separated by sufficient distances.
Second, these types of gene terminator approaches tend to work relatively quickly - several generations, I think, but I've only read about these in insect populations where generations are months not years. Anyway, the fallback approach is to maintain a breeding stock of non-edited, isolated somewhere safe, and if the original habitat specimens do get wiped out accidentally you can re-introduce if appropriate.
This is a good solution for mosquitoes - where you basically do want to wipe out a handful of species for a year or more, as the actual intent is to wipe out malaria (Plasmodium). Once that's done, you have the option to safely reintroduce those original-gene mosquito species.
With malaria, I believe there's a tiny handful, 3 or 4 perhaps, of species of mosquito that carry it, and removing those species from environments where other species of mosquito exist is thought to be low-risk in terms of unintended consequences.
The fallback breeding stock is just another thing we can do to provide assurance that we're not about to accidentally trigger the end of the world.
I don't think that this will be a governmental entity, not directly.
But deliberate capture in nature and releasing in another ocean can be still a problem. And new groups lobbying against its total eradication would surely be created.
Killing invasive species for sport is in the origin of most invasions of alien species of fish in Europe. Probably the same in America also.