Fish diversity and fish community in seagrass beds at Ban Pak Klong, Trang Province, Thailand

Abstract

Fish diversity in seagrass beds at Ban Pak Khlong Trang Province, Thailand, 62 taxa in 35 families were conducted using three different mesh size gill net (2.0, 3.5 and 5.0 cm) between January to December 2012. The dominant families were Leiognathidae, Engraulidae, Gerreidae, Hemiramphidae, Platycephalidae and Tetraodontidae, while the dominant species were Sillago sihama, Leiognathus jonesi and Gerres erythrourus. The highest of occurrence frequency were Sillago aeolus, (91.67 %), Sillago sihama (83.33 %) and Gerres erythrourus (66.67 %). They were highly abundant of specimens on August, less in October. Mean Shannon indices was closely 1.9. Also the physico-chemical parameters, such as conductivity, TDS, salinity, DO, pH, temperature, transparency, ammonia, nitrite, nitrate, orthophosphate and Chlorophyll a were studied.