Document of bibliographic reference 350248

BibliographicReference record

Type

Bibliographic resource

Type of document

Book chapters

BibLvlCode

AMS

Title

Impact of tropical storm Pabuk on intertidal gastropods in Bidong Island, Malaysia

Abstract

Malaysia was hit by the after-effects of tropical storm Pabuk, which originated in the North-western Pacific Ocean between late December 2018 and early January 2019. The storm caused severe damage to the intertidal ecosystem on the Bidong Island. This study explored the composition, distribution and abundance of marine intertidal gastropods following tropical storm Pabuk. A series of transect lines (16 m × 15 m) were laid out perpendicular to the shore and zonation from the low, middle, and high tide with a total of 18 quadrats of 0.25 m² was used at Pantai Pasir Cina (PPC) and Pantai Pasir Pengkalan (PPP) in August 2019. The results revealed that a total of 14 species were found at both sites, comprised of three subclasses and eight families from a total of 498 individuals. The most commonly found gastropods were Littoraria strigata with a FoI of 83%, which were adaptive to the environmental condition. Analysis results showed the Shannon diversity index, H’ had a value less than two, indicating low diversity. In contrast, the Simpson Index, D’ had a value of almost one, indicating high dominance. The Evenness index, J’ and Equitability index, Ep’ also had a moderate value of almost one for the gastropods in the study sites. Diversity t-test recorded t (496.23) = 6.7683, p < 0.05, which indicates both sites have a significant difference. Furthermore, SHE analysis showed a log series distribution pattern. Strong winds from the storm created strong waves that struck the coral ridge areas causing branching coral to break and die. An increasing percentage of dead coral that covered up the intertidal area was observed. A future study that includes spatial heterogeneity and temporal variability coupled with a monitoring programme will be helpful to assess the wellness of this intertidal ecosystem.

Bibliographic citation

Mohamad Basir, N.H.; Baharuddin, N.; Ahmad, A. (2022). Impact of tropical storm Pabuk on intertidal gastropods in Bidong Island, Malaysia, in: Chuan, O.M. et al. Bidong Island: Natural history and resources. Geography of the Physical Environment, : pp. 119-128. https://dx.doi.org/10.1007/978-3-030-91924-5_10

Topic

Marine