Skipjack tuna addition, skipjack's livers were tested globally for tributyltin contamination. TBT is an organotin compound introduced into marine ecosystems through antifouling paint used on ship hulls, and has been determined to be very toxic. About 90% of skipjack tested positive for contamination, especially in Southeast Asia, where regulations of TBT use are less rigorous than in Europe or the US. Skipjack tuna is used extensively in Japanese cuisine, where it is known as . Besides being eaten seared () and raw in sushi and sashimi, it is also smoked and dried to make katsuobushi, the central ingredient in dashi (a common
USS Skipjack (SS-184) USS Skipjack (SS-184) USS "Skipjack" (SS-184), a "Salmon"-class submarine, was the second ship of the United States Navy to be named after the fish. Her keel was laid down by the Electric Boat Company in Groton, Connecticut, on 22 July 1936. She was launched on 23 October 1937 sponsored by Miss Frances Cuthbert Van Keuren, daughter of Captain Alexander H. Van Keuren, Superintending Constructor, New York Navy Yard. The boat was commissioned on 30 June 1938 with Lieutenant Herman Sall in command. She earned multiple battle stars during World War II and then was sunk, remarkably, by an atomic bomb