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
HMS Skipjack (1889) HMS Skipjack (1889) HMS "Skipjack" was a of the British Royal Navy. She was built at Chatham Dockyard from 1888–1891. She was converted to a minesweeper in 1908–1909 and continued these duties during the First World War. "Skipjack" survived the war and was sold for scrap in 1920. The "Sharpshooter"-class was designed under the leadership of William Henry White, the Director of Naval Construction, to be faster and more seaworthy than the preceding prototype torpedo gunboat, and the three ships, while carrying a heavier armament. As torpedo gunboats, they were intended to defend the fleet from attack by torpedo-boats, while