Canned fish finds the hidden one packs into the same space until there is only one left out, who becomes the next one to hide. Tuna is canned in edible vegetable oils, in brine, in water, or in various sauces. In the US, it is sometimes called "tuna fish". In the United States, only albacore can legally be sold in canned form as "white meat tuna"; in other countries, yellowfin is also acceptable. While in the early 1980s, canned tuna in Australia was most likely Southern bluefin; it was usually yellowfin, skipjack, or tongol (labelled "Northern bluefin"). As tunas are often caught
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