Taiwanese fishermen call the bluefin the "black urn tuna," because it has a round, spindle-shaped body and a glistening black back, so that from above it looks like an urn painted with lacquer.
漁民稱黑鮪魚為「烏甕串」，因為黑鮪魚有個圓滾滾的紡錘形身體，上背烏黑發亮，從上往下看，像個塗了亮漆的黑甕。