Type and abundance of Gastropods in Mangrove Area in Rawa Mekar Jaya Village Sungai Apit Sub-district Siak Regency Riau Province

Abstract

ABSTRACT

This research was conducted  on July 2019 in the mangrove forest Rawa Mekar Jaya Village, Sungai Apit Sub-district, Siak Regency, Riau Province. This research aims to  determine the type and abundance of gastropods in Rawa Mekar Jaya Village. The sampling method using a fixed transect lines combined with 1x1 quadrant (m²). Gastropods found were 4 species: Telescopium telescopium, Ellobium aurisjudae, Cerithidea quadrata, and Neritina violacea. Results shown that the highest species abundance obtained from Cerithidea quadrata with 35.334 ind/ha and the lowest was Ellobium aurisjudae with 19.668 ind/ha . The highest gastropod abundance was found in Station III with 144.000 ind/ha, while the lowest gastropod abundance was found in Station I with 71.333 ind/ha.

 Keywords :Gastropods, abundance, line transect mangrove, Siak Regency