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) raised and towed to Mare Island. On 11 August 1948, she was again sunk as a target off the coast of California by aircraft rockets. Her name was stricken from the Naval Vessel Register on 13 September 1948. "Skipjack" received seven battle stars for World War II service. 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