Construction of fishing gears used as capturing shellfish in Bagan Deli marine coastal area, North Sumatera, Indonesia

Bivalves and gastropods nowadays became mainly catches shellfish by coastal community due to their commercial values to the market. Considering the constructions of fishing gears may get a unique behavior of fisherman for gaining more shellfish. However, this research concern about the constructions of fishing gears used and shellfish catches by local fisherman in Bagan Deli marine coastal area. The sampling was took place and date at Medan Belawan's District in North Sumatera, Indonesia during January 2019. In-situ observation was used to identify the type of fishing gears, its constructions and shellfish catches by local fisherman and describing systematically into data tabulation. Some results showed that mostly local fisherman used cage grabber, net claw and local fishing gear instrument namely uncang. Another interesting result is that the different material of its constructions of fishing gears affected to a difference of shellfish catches. These facts concluded that local fisherman had specific skill and deep knowledge to perform its fishing gears as traditional methods of capturing shellfish.