Species composition of gastropods in Kuala Similajau Rocky Shore, Bintulu, Sarawak

Moklas, Siti Nurhidayah (2010) Species composition of gastropods in Kuala Similajau Rocky Shore, Bintulu, Sarawak. [Project Paper] (Submitted)

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Abstract

A study on invertebrate gastropods mollusc was carried out at Kuala Similajau, Bintulu coastal area which is a rocky shore area during low tide period. Sampling was conducted during low tide from August 2009 until October 2009. Sample data were obtained through 1m x 1m quadrats by using free random technique. Results shown, there were total of 13 families with 40 species which 13 species unidentified and 27 species of gastropods were identified in the study areas. The diversity indices shown that SA area had high diversity value (1.677) while SO areas were the lowest diversity value (0.3781). For the richness index SO area showed the highest value (2.295) compared to SA area were the lowest value (0.2507). SA are shown the highest value (0.999) for evenness index compared to the SO area which had the lowest value (0.3587). The cluster analysis shown that at 60% similarity, only three groups was have high similarity, group 2 (SS1, SS2 and SS5), group 3 (SO1, SS3 and SS4) and group 4 (SO4, SO6, SO5, SO2 and SO3) while the rest were independent. SO area was recorded the highest abundance values because had the highest number of individuals value (558 individual/m2) with 26 species of gastropods compared to SA area which had the lowest abundance (186 individual/m2) with 14 species. Clypeomorus batillariaeformis were recorded the most important species and highly abundance compared to other species by ISI method. The Pearson Correlation Analysis shown there were significantly different for salinity and DO parameter when compared to the other physic-chemical parameters of seawater.

Item Type:	Project Paper
Subjects:	S Agriculture > S Agriculture (General) S Agriculture > SH Aquaculture. Fisheries. Angling
Faculty:	Faculty of Agriculture and Food Sciences
Depositing User:	Mr. Mohd Faizal Jabat
Date Deposited:	29 May 2026 07:28
Last Modified:	29 May 2026 07:28
URI:	http://psaspb.upm.edu.my/id/eprint/2784

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