A total of 40 species belong to 35 genera under 23 families and 10 orders were recorded in the study area during the study period from June 2016 to January 2017. The samples were collected from four stations of Kyeikhto Township at the medium sized boats. Among the recorded species Otolithoides pama and Leptomelanosoma indicum are commercial important species for Kyeikhto Township. A total of 190 samples of O. pama and 167 samples of P. indicus were measured for length-weight relationship. The length-weight relationship of O.pama and P.indicus were W=0.0036L3.2138 and W= 0.0029L3.3941. The biomass of fence net in Kyeikhto station are 208.16kg, 271.4kg, 320.24kg, 241kg, 236kg from September 2016 to January 2017. The biomass and CPUE of drift gill net in Bo Yar Gyi station are 140.8kg, 124.8kg, 132.8kg, 140.8kg, 145.6kg and 17.6 kg/boat/day, 15.6 kg/boat/day, 16.6 kg/boat/day, 17.6 kg/boat/day, 18.2 kg/boat/day from September, 2016 to January, 2017. The biomass and CPUE of trammel net in Bo Yar Gyi station are 121.6kg, 104.2kg, 124kg, 187.2kg, 124kg and 17.4 kg/boat/day, 14.9 kg/boat/day, 17.7 kg/boat/day, 26.7 kg/boat/day , 17.7 kg/boat/day from September, 2016 to January, 2017. The biomass and CPUE of trammel net in Kyauk Seik station are 157.92kg, 149.04kg, 152kg, 120kg, 56.8kg and 15.8 kg/boat/day, 14.9 kg/boat/day, 15.2 kg/boat/day, 12 kg/boat/day, 4.7 kg/boat/day from September, 2016 to January, 2017. The biomass and CPUE of trammel net in Sut Pa Nu station are 245.92kg, 168.08kg, 95.52kg, 50.02kg, 36.96kg and 7.64 kg/boat/day, 6.72 kg/boat/day, 3.82 kg/boat/day, 2 kg/boat/day, 1.49 kg/boat/day from September 2016 to January, 2017. In study area, the three type of fishing gears were used in the medium sized boat; these were drift gill net, trammel net, and fence net.