Diversity of Aquatic and Terrestrial Molluscs from Simeulue Island, with Notes on Their Distribution and Some New Records

Nova Mujiono,Heryanto Heryanto,Ristiyanti M Marwoto

doi:10.24252/bio.v8i1.13212

Nova Mujiono, Heryanto Heryanto + Show 1 more

Open Access

https://doi.org/10.24252/bio.v8i1.13212

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Abstract

Faunistic study on the malacofauna of Simeulue Island was carried out in 2017 after 104 years from the last collection in 1913. 3 locations with 13 stations were observed. 20 families and 50 species of aquatic and terrestrial molluscs were identified. The occurrences of 4 local endemic species were still found and 19 new distributional records were added to the previous list. However, 5 previously listed species were not found in the present study. Through the present study, the accumulative number of malacofauna from Simeulue Island will be around 54 species. 19 species were reported for the first time, including 3 introduced species and 1 new records for Indonesia. 4 local endemic species were still found there after 104 years gone by.

Highlights

Simeulue (Simalur) is a small island located on the west coast of Sumatra Island.The distance between Simeulue to mainlandSumatra is about 136 km
The current study is needed to determine the composition of molluscs on Simeulue Island because the small island is prone to disasters such as tsunamis (Whitlow, 2008)
If a species is not listed in these references, it is considered ‘New Record’ for Simeulue Island

Summary

INTRODUCTION

Simeulue (Simalur) is a small island located on the west coast of Sumatra Island. Sumatra is about 136 km. Jacobson came to Simeulue Island in 1913 and collected several groups of animals, including molluscs. No more molluscs collection has been made on Simeulue Island since Dr E Jacobson in 1913. There is a change in the species composition of molluscs after more than 100 years. For this reason, the current study is needed to determine the composition of molluscs on Simeulue Island because the small island is prone to disasters such as tsunamis (Whitlow, 2008). The small island is susceptible to experience the extinction of its biota caused by climate change or disaster, including molluscs (Cowie, 1992; Regnier et al, 2009)

MATERIALS AND METHODS

AND DISCUSSION

THIARIDAE

VIII HELICARIONIDAE

Findings

CONCLUSION