There were a number of primary documents studied on the issue in the last decade. Most of them were reports on main fishing gear e.g. gill nets and crab traps, while few papers studied on other gear types. The papers cover Sumontha and Wungkahart (2006), Dechboon and Somchanakij (2006), Wungkahart et al. (2006), Wungkahart and Sumontha (2006), Srichanngam and Petchkamnerd (2006), Srichanngam and Rungruang (2006), Poonpanich et al. (2006), Wungkahart et al. (2007), Siripech et al. (2007), Jankusol and Singhagraiwan (2009), Jindalikit et al. (2010), Arunrojprapai et al. (2010), Mookkaew et al. (2011), Boutson and Takafumi (2011), Srikum et al. (2012), Petsalapsri et al. (2012).
