Abstract:
The research was conducted at Kerteh Estuaries, which 30 km from the river is a Kerteh
Petroleum Industries located. The aims is to evaluate the many sources of pollution such
as fishing village, oil spill from the sand mining and drainage from the petroleum
industries considering surface runoff and drainage system. Though, it cannot be related
directly but it is essential to conduct a research so that preliminary assessment could be
conduct if needed. This research is focusing on mollusk phyla class Gastropoda because
of it behavior suit to become a biological monitoring devices. Initially, 5 stations were
chosen randomly according to GPS reading. Sampling was done twice, first during the
post monsoon season, end of July and second sampling during the pre-monsoon season,
end of December.
