Does anyone on the forum know much about international fishing regulations? I learned recently that there is high demand for Atlantic bluefin tuna (Thunnus thynnus) in East Asian markets, despite the fact that they are listed as an IUCN endangered species. It makes little sense to me that there would be a market for this fish in East Asia considering there are several Thunnus species available in the Pacific that are not endangered and don’t require the exorbitant shipping cost to get them from the Atlantic to the Pacific while they’re still fresh. Does the demand pose a significant threat to the species? Do harvesting regulations do anything to curb demand? Are regulations just too weak to make a difference? Is enforcement too lax?
On a related note, what species of tuna are most commonly sold at East Asian fish markets? Fish merchants in East Asia make a show out of cutting the big tuna for sashimi, which I don’t have any objection to–It can be fascinating to watch (e.g. this video from the Noryangjin fish market in Seoul [Fair warning: the video depicts a typical tuna butchering demonstration. If that sounds too graphic for you, refrain from watching]. Can anyone identify the species in the video?)–but I would be very upset to see an endangered species butchered.