Abstract

• The present study was to assess the abundance and species diversity of cephalopods along Chaungtha coastal area. It was conducted from December 2018 to November 2019. Identification was followed after Jereb and Roper (2005) and Jereb et al. (2010,2014).The key of species richness index, Simpson’s index of diversity and Shannon-Wiener’s diversity index were used in this research. A total of 14 cephalopod species, belonging to six genera, four families under four orders were recorded within the study area. Maximum number of cephalopod individuals was recorded in cold season. The highest number of individual was also observed for the species Uroteuthis duvauceli. The second highest number of individual was examined in the hot season. The least number was in the wet season. Fourteen species were recorded in all season. According to Shannon index the highest value (1.828295) was in wet season while the lowest value (1.708776) was in cold season. According to Simpson’s index the highest value (0.250587) was recorded in cold season and the lowest value (0.22207) was observed in wet season. The output was expected to promote the cephalopod fishery in future fishery sector of coastal region in Myanmar.