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) record, which is a record that still stands. The year 1963 was occupied in submarine attack operations and ASW exercises, all designed to test the capabilities of the nuclear-powered attack submarine. The highlight of 1964 was two months of duty with NATO forces, participating in exercises "Masterstroke" and "Teamwork" and visiting Le Havre, France, and the Isle of Portland, England, before returning to New London in October. After devoting most of 1965 to training exercises, the submarine ended the year by entering the Charleston Naval Shipyard in South Carolina for an overhaul that lasted until 18 October 1966. "Skipjack" then