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Watermen use these boats year round for everything from crabbing and oystering to catching fish or eels. Traditionally wooden hulled, the deadrise is characterised by a sharp bow that quickly becomes a flat V shape moving aft along the bottom of the hull. A small cabin structure lies forward and a large open cockpit and work area aft.
The earliest steam-powered fishing boats first appeared in the 1870s and used the trawl system of fishing as well as lines and drift nets. These were large boats, usually 80–90 feet (24–27 m) in length with a beam of around 20 feet (6.1 m). They weighed 40–50 tons and travelled at 9–11 knots (17–20 km/h; 10–13 mph).
A steamboat is a boat that is propelled primarily by steam power, typically driving propellers or paddlewheels. The term steamboat is used to refer to small steam-powered vessels working on lakes, rivers, and in short-sea shipping. The development of the steamboat led to the larger steamship, which is a seaworthy and often ocean-going ship.
Most commercial fishing boats are small, usually less than 30 metres (98 ft) but up to 100 metres (330 ft) 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.
A small type of Viking longship Ketch A two-masted, fore-and-aft rigged sailing boat with a mizzenmast stepped forward of the rudder and smaller than its foremast. Knarr A large type of Viking cargo ship, fit for Atlantic crossings Lorcha A sailing ship with mixed Chinese (rig) and western design (hull) that used since 16th century in far east.
The boats that are used for trawling are called trawlers or draggers. Trawlers vary in size from small open boats with as little as 30 hp (22 kW) engines to large factory trawlers with over 10,000 hp (7.5 MW). Trawling can be carried out by one trawler or by two trawlers fishing cooperatively (pair trawling).
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