Skipjack tuna commercial tunas, and its population is considered sustainable against its current consumption. Its fishing is still controversial due to the methodology, with rod and reel or fishery options being promoted as ecologically preferable. Purse seine methods are considered unsustainable by some authorities due to excess bycatch, although bycatch is said to be much reduced if fish aggregation devices are not used. These considerations have led to the availability of canned skipjack marked with the fishing method used to catch it. Skipjack is considered to have "moderate" mercury contamination. As a result, pregnant women are advised against eating large quantities. In
HMS Skipjack (1889) a minefield laid by the German submarine "UC-68" in the approaches to the Clyde which was holding up shipping from the Clyde and Liverpool. "Skipjack" was a member of the Second Fleet Sweeping Flotilla, based at Scapa Flow as part of the Grand Fleet, in July 1917. In 1918 she was a member of the 13th Fast Minesweeper Flotilla at Oban . "Skipjack" was sold for scrap to Hammond Land Foundry of Dublin on 23 February 1920. HMS Skipjack (1889) HMS "Skipjack" was a of the British Royal Navy. She was built at Chatham Dockyard from 1888–1891. She was converted