[shatnersbassoon]

> I'd like to see some stats to back this up, considering the IUCN has taken the bluefin off its "red list,"

No they haven't. Nothing gets taken off the Red List (e.g. the Brown Rat is on the Red List: https://www.iucnredlist.org/species/19353/165118026). It's the Red List rating that matters, and Atlantic Bluefin is listed as Endangered. https://www.iucnredlist.org/species/21860/76599358