The short answer to the above questions has to do with politics and political correctness. First of all, just about everything from the ocean is good to eat. People’s tastes and notions of what’s socially acceptable to eat change with the times. The first time I visited Bimini, back in the 1960s, it happened to be during a tuna tournament. At the end of the day, a dozen or more big bluefin tuna covered the weigh-in dock. A few natives arrived and cut off enough meat for dinner, and the rest was towed out and dumped at sea the next morning. After all, bluefin was not considered good to eat, and since there were so many tuna, killing them was not a problem. Commercially landed bluefin, back then, sold for a few cents a pound and were used to make pet food and fertilizer. They were routinely called horse mackerel. Recently, a single bluefin sold in Tokyo for well over $1 million.