Sains Malaysiana 44(7)(2015): 921–929


Features of Intertidal Bioerosion and Bioconstruction on Limestone Coasts of Langkawi Islands, Malaysia

(Ciri Antara Pasang Surut Biohakisan dan Biopembinaan di Pantai Batu Kapur, Pulau Langkawi, Malaysia)





1Department of Palaeontology, Eötvös University, Pázmány sétány 1/c, H-1117 Budapest



2Geology Program, Faculty of Science and Technology, Universiti Kebangsaan Malaysia

43600 Bangi, Selangor Darul Ehsan, Malaysia


3Institute for Environment and Development (LESTARI), Universiti Kebangsaan Malaysia

43600 Bangi, Selangor Darul Ehsan, Malaysia


4Island Research & Education Initiative, Pohnpei, FM 96491, Federated States of Micronesia


Diserahkan: 28 September 2013/Diterima: 5 Mei 2015



The purpose of this paper was to provide a practical guide assisting field workers in identification and interpretation of frequently occurring bioerosional textures created in limestone by intertidal organisms along the coasts of Langkawi Islands, Malaysia. The discussion follows the textural succession from the supratidal down to the lower intertidal zone. Traces left by lichens, boring sponges, molluscs (littorinid snails, the chiton Acanthopleura, the bivalve Lithophaga) and the echinoid Echinometra are illustrated. Products of bioconstructing organisms, specifically oysters and barnacle are also described. Ecological tolerance of each group is given.


Keywords: Barnacle; bioconstruction; bioerosion; echinoid; Holocene; intertidal; mollusc; Langkawi; Malaysia


Tujuan penulisan ini adalah untuk menyediakan panduan praktikal untuk membantu pekerja lapangan dalam pengenalan dan tafsiran tentang kekerapan berlakunya kejadian biohakisan tekstur dalam batu kapur oleh organisma pasang surut di sepanjang Pantai Pulau Langkawi, Malaysia. Perbincangan ini mengikut tekstur turutan daripada suprapasang surut sehingga ke zon rendah pasang surut. Jejak yang ditinggalkan oleh liken, span gerek, moluska (siput litorinid, chiton Acanthopleura, bivalve Lithophaga) dan ekinoid Echinometra ditunjukkan. Produk organisma biopembinaan, khususnya tiram dan teritip, juga dinyatakan. Toleransi ekologi untuk setiap kumpulan turut diberikan.


Kata kunci: Biohakisan; biopembinaan; ekinoid; Holesen; Langkawi; Malaysia; moluska; pasang surut; teritip


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