Today, or at 11.59pm tonight, to be exact, the purse-seining season for bluefin tuna in the Mediterranean is being closed. A week early.
I'm back on land now, having left the Arctic Sunrise in the Med. In London, we've had a flurry of media calls, excited by what they think is the "good news" that "bluefin fishing is being banned" in the Mediterranean.
So I thought, as well as putting the record straight with any journalists who'll listen, that I should maybe explain to everyone else what exactly is happening. And whether it is indeed "good news".