4. Traps

      Basing on target species of this fishing, traps can be divided into: cuttlefish traps, crab traps, fish traps, etc. This has developed little in Vietnam and is focused mainly in the coastal areas, it is not operated in the offshore areas and seawaters having a rough or complex bottom.

     The fishing gear has the structure of parallelepiped or cylindrically shape with one or two entries and one entry for collecting catch. Bait is set in the traps to attract the target species. Traps may be made of bamboo, rattan or wire net; or with hard frames and net covering the traps. They can be set independently because of the float or set in one line on the main rope. Target species are of high economic values. However, this fishing has not been developed widely and has not attracted enough research yet, it should be applied using advanced techniques to operate in the waters having species of higher economic value (and only it can exploit).

    Depending on the target species, the methods of setting, keeping and collecting traps are different.

    Lobster traps and grouper traps must be set separately and placed against the entrances to caves. These traps are fixed for months in the waters. The collecting operation is carried out daily or weekly.

    Crab traps are set in one line of hundreds, one by one. They are placed and collected daily.