<![CDATA[Teluk Buo mangrove forest is one of tourist destination in the Sumatera Barat Province. The input of pollutant originated from anthropogenic activities, however, reducing the water quality and as a consequence negatively affects the mangrove ecosystem as well as the associated organisms, including gastropods. To understand the community structure of gastropods in the mangrove ecosystem, a research was conducted on February 2017. There were 3 line transects and in each line, 9 plots (1mx1m) were placed. The gastropods present in the plots were collected manually everyday for 2 weeks period. Result shown that there were 7 gastropods species present, they were Nerita lineata, Nerita undata, Terebralia sulcata,Telescopium telescopium, Cerithidea quadrata, Littoraria melanostoma and Littoraria scabra. The gastropods abundance was ranged from 1.741 to 5.963 organisms/ha. The value of diversity index was (H’) 0.821-2.385, the dominance index (C) was 0.219-0.704, and the uniformity index (E) was 0.118-0.584. The water quality parameters are as follows: temperature was 29-310C; pH was 7.3-7.5 and salinity was 25-34 0/00. Gastropods Community Structure in the Mangrove Ecosystem in the Teluk Buo has been disturbed and the dominant species (T. sulcata).Keywords:Gastropods, Mangrove Ecosystem, Teluk Buo, Water quality]]>
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