 Of the decked vessels, 86 percent are found in Asia, 7.8 percent in Europe, 3.8 percent in North and Central America, 1.3 percent in Africa, 0.6 percent in South America and 0.4 percent in Oceania.Most commercial fishing boats are small, usually less than but up to for a large purse seiner or factory ship.Commercial fishing vessels can be classified by architecture, the type of fish they catch, the fishing method used, or geographical origin.