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
USS Skipjack (SSN-585) preparation for a refueling overhaul at General Dynamics' Electric Boat Division. After conducting a few more exercises, "Skipjack" entered the shipyard for overhaul in the summer of 1974 and remained inactive until the fall of 1976. "History from 1976 to 1979 needed." "History from 1980 to 1986 needed." On August 16, 1980, 'Skipjack' was in port in Callao, Peru, along with another US Navy surface vessel. In 1986, "Skipjack" deployed on a "Northern Run" to the North Atlantic Ocean. In 1987 "Skipjack" deployed to the Mediterranean Sea, returning in early September and entering dry-dock for the September – November time