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
Skipjack (boat) oyster harvest has since declined steadily, especially at the end of the 20th century. The size of the fleet has likewise declined. New skipjacks were built as late as 1993, but a change in the law in 1965 allowed the use of motor power two days of the week. As a result, few of the boats are operated under sail in commercial use; instead, a pushboat is used to move the skipjack, and little dredging is done except on the days that power is allowed. At one time, the number of skipjacks produced is estimated at approximately 2,000; today, they