Firstly, this video is about Kindai tuna, which is a more sustainable and farmed option than controversial blue fin tuna. It's a rare find in the US and fetches a hefty price. And it's no small task to break down into small pieces fit for sushi. Dramatic music aside, it's clear the chefs know what they're doing. Even with that neat diagram of the parts of the fish, I'd be at a total loss.
Del Posto, a restaurant headed by Joe Bastianich, Lidia Bastianich and Mario Batali, it turns out, has put an number of similar how to videos on YouTube (who knew?). If the tuna has piqued your interest, check out the following:
Related: Tsukiji Fish Market Tokyo, Japan
(Images: Del Posto Restaurant YouTube channel)