Effects of tsunami on Kedah waters: relationships between biotic and abiotic factors in the benthic environment

Ahmad Adnan Nuruddin, . and Ryon S., . (2005) Effects of tsunami on Kedah waters: relationships between biotic and abiotic factors in the benthic environment. [Proceedings Paper]

The recent tsunami disaster had a significant impact on the lives and livelihood of the fishing communities throughout the region. In Malaysia the coastal area of Kedah was hardest hit by the giant waves. The effects of these waves on the benthic community may be significant. This study concentrated on the effects of the tsunami on the benthic sediment organisms in Kedah waters. A previous benthos study conducted in the same area in the year 2004 was used as the reference for compariosn. This study also focused on the relationship between various biotic and abiotic factors in the benthic environment and tried to relate the effects of the disaster on the benthic environment. Eleven stations were determined and sampling was carried out using a Smith-McIntyre Grab onboard K.K. MERSUJI in January 2005. The results showed that there was a marked change in the benthos population and composition in Kedah waters after the tsunami. There were significant changes in the mollusc population and weak changes in crustacea population. The tsunami also caused a significant increase in the level of clay decrease in the level of fine sand and an increase in medium sand. However these changes may not be permanent and the situation may revert back to its previous state with time.

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Abstract

The recent tsunami disaster had a significant impact on the lives and livelihood of the fishing communities throughout the region. In Malaysia the coastal area of Kedah was hardest hit by the giant waves. The effects of these waves on the benthic community may be significant. This study concentrated on the effects of the tsunami on the benthic sediment organisms in Kedah waters. A previous benthos study conducted in the same area in the year 2004 was used as the reference for compariosn. This study also focused on the relationship between various biotic and abiotic factors in the benthic environment and tried to relate the effects of the disaster on the benthic environment. Eleven stations were determined and sampling was carried out using a Smith-McIntyre Grab onboard K.K. MERSUJI in January 2005. The results showed that there was a marked change in the benthos population and composition in Kedah waters after the tsunami. There were significant changes in the mollusc population and weak changes in crustacea population. The tsunami also caused a significant increase in the level of clay decrease in the level of fine sand and an increase in medium sand. However these changes may not be permanent and the situation may revert back to its previous state with time.

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Item Type:	Proceedings Paper
Additional Information:	Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. mal GC219 S471 2005 Call Number
AGROVOC Term:	WATER DEPRIVATION
AGROVOC Term:	BENTHIC ENVIRONMENT
AGROVOC Term:	MARINE ENVIRONMENT
AGROVOC Term:	DISASTERS
AGROVOC Term:	TSUNAMIS
AGROVOC Term:	IMPACT ASSESSMENT
AGROVOC Term:	MALAYSIA
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:13
URI:	http://webagris.upm.edu.my/id/eprint/10917

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