I can't recall another attempted corner in an endangered species, usually the perps sell as soon as possible.
From the Independent:
Mitsubishi freezing fish to sell later as stock numbers plummet toward extinction
Japan's sprawling Mitsubishi conglomerate has cornered a 40 per cent share of the world market in bluefin tuna, one of the world's most endangered fish.
A corporation within the £170bn Mitsubishi empire is importing thousands of tonnes of the fish from Europe into Tokyo's premium fish markets, despite stocks plummeting towards extinction in the Mediterranean.
Bluefin tuna frozen at -60C now could be sold in several years' time for astronomical sums if Atlantic bluefin becomes commercially extinct as forecast, a result of the near free-for-all enjoyed by the tuna fleet....MORE