What is a longline fishing boat

Explaining the longline fishing boat, first of all, we have to explain the longline fishing

The principle of fishing is that: from the boat to release a trunk line (120 ~ 150Km) in the sea, there are a certain number of branches and floats at a certain distance tied to the trunk line, with the help of the buoyancy of floats, so that the branch line (with a bait at one end, the bait of the longline fishing: the main use of frozen swordfish, mackerel, sardines, squid, etc.). Suspended in the water at a certain depth, the bait (or lure) is used to lure the fish to the hook, so as to achieve the purpose of fishing.

A longline boat is a boat that utilizes a longline for fishing