Citation
Ahmad Adnan Nuruddin, . and Abdul Haris Hilmi Ahmad Arshad, . and Abu Talib Ahmad, . and Halimah Mohamed, . and Mohd. Faisal Mohd. Salleh, . (2005) Changes in density and diversity of fish resources before and after the tsunami in the southwest coast of Penang Island using K.K. MERSUJI. [Proceedings Paper]
Abstract
This study compared results of a survey conducted in June 2005 about six months after the tsunami with results of a survey conducted in July-August 2000. Both surveys had different initial objectives but they were conducted in the specific area off the southwest coasts of Penang Island that was affected by the tsunami. It is hoped that the effect of the tsunami on the fish resources can be observed. Both surveys were carried out using that research vessel K.K. MERSUJI a 97-GRT fiberglass stern-trawler. Observations were made on the changes in terms of density and diversity in the catch samples. Subsequently the fish were re-grouped according to environmental groups and trophic level groups in order to see if the tsunami had any impact on these groups of fish. Results showed a slight reduction in density of demersal fish demersal invertebrate composition in the total density reported in 2005 was 90 compared to 93 in 2000. The density reductions were more in the shallowest and the deepest areas in the southwest coast of Penang. Omnivores were reduced by 30 mid-level carnivores reduced by 12 while there was a slight increase in the density of high-level carnivores in the 2000-2005 period. This explained the increased in the mean trophic level TL from 3.43 in the July-August 2000 survey to 3.56 in June 2005. The latest survey also showed the disappearance of 13 families with 16 species of demersal fish. However three new families with six species were recorded. The change in fish density over the five-year period was tested to see if there was any significant difference. Results showed that tsunami did not cause a significant change in the average density of the fish at the 0.05 level.
Download File
Full text available from:
|
Abstract
This study compared results of a survey conducted in June 2005 about six months after the tsunami with results of a survey conducted in July-August 2000. Both surveys had different initial objectives but they were conducted in the specific area off the southwest coasts of Penang Island that was affected by the tsunami. It is hoped that the effect of the tsunami on the fish resources can be observed. Both surveys were carried out using that research vessel K.K. MERSUJI a 97-GRT fiberglass stern-trawler. Observations were made on the changes in terms of density and diversity in the catch samples. Subsequently the fish were re-grouped according to environmental groups and trophic level groups in order to see if the tsunami had any impact on these groups of fish. Results showed a slight reduction in density of demersal fish demersal invertebrate composition in the total density reported in 2005 was 90 compared to 93 in 2000. The density reductions were more in the shallowest and the deepest areas in the southwest coast of Penang. Omnivores were reduced by 30 mid-level carnivores reduced by 12 while there was a slight increase in the density of high-level carnivores in the 2000-2005 period. This explained the increased in the mean trophic level TL from 3.43 in the July-August 2000 survey to 3.56 in June 2005. The latest survey also showed the disappearance of 13 families with 16 species of demersal fish. However three new families with six species were recorded. The change in fish density over the five-year period was tested to see if there was any significant difference. Results showed that tsunami did not cause a significant change in the average density of the fish at the 0.05 level.
Additional Metadata
| 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: | COASTS |
| AGROVOC Term: | COASTAL WATERS |
| AGROVOC Term: | DENSITY |
| AGROVOC Term: | TSUNAMIS |
| AGROVOC Term: | FISHERY RESOURCES |
| 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/10910 |
Actions (login required)
 |
View Item |
