Bluefin tuna are some of the most endangered fish in the sea. Prized by the sushi industry for their delicious flavor, populations of bluefin have declined precipitously in recent decades.
They also may be the first species of fish to be driven to extinction by commercial fishing. Normally, when populations of fish get low, it isn’t profitable to fish for them anymore- thus they are not driven to extinction. However, a single bluefin tuna can sell for hundreds of thousands of dollars, so it is still profitable to fish for the last one.