The research on sea anemone abundance was conducted in December 2011 to January 2012 in Kasiak Island Waters of Pariaman, West Sumatera Province. The research was aimed to knowing the types and abundance of sea anemone (Actiniaria sp). The study used survey method by applying a quadrant trancect which consisting of three main stations. Each station was divided into two sub depths, i.e. 3 and 7 …