Citation
Zulfigar H. Y., . and Satien K. T., . and Alan G., . and Reungchai T., . (2000) Colonization of artificial substrate on the coral reef at Pulau Payar in the Straits of Malacca. [Proceedings Paper]
Abstract
Colonization of sand-and-cement-covered settlement plates at 6 and 12 meters depth on a coral reef was investigated at Pulau Payar in the Straits of Malacca off the western coast of Peninsular Malaysia. Plates were placed for varying durations from 1 to 10 months series A and for 2-month periods following placement at different times of the year series B. Four plates were placed in each study condition. The total area of settlement abundance and size distribution of molluscs sponges barnacles and coral were recorded. The rate of sedimentation and water properties were measured monthly throughout the study period. Salinity temperature and dissolved oxygen showed small fluctuations with season. Sedimentation rate however showed a marked peak in the rainy seasonJune-Augustat the shallower depth. Interms of mean area cover molluscs were the dominant type of the 4 major life-forms recorded throughout the immersion period on both upper and lower surfaces at 6 and at 12 meters depth although sponges occupied a similar area on the lower surface of plates. At 6 meters depth area cover of molluscs increased throughout the study period but at 12 meters depth cover by molluscs increased rapidly in the first 3-4 months then plateaued and started to decrease by 7-8 months probably due to predation. Barnacle cover on lower surfaces was higher than on upper surfaces. Maximum cover on lower surfaces occurred in February at both depths 8 at 6 meters and 4 at 12 meters. Coral cover was insignificant at all times maximum0.2. The increase in area cover by molluscs was the result mainly of growth as after the initial settlement of over 100 individuals per plate in the first 1-4 months numbers clined steadily throughout the remaining immersion period on both surfaces at both depths. By contrast the change in area cover by barnacles closely paralleled the change in numbers of individuals suggesting that settlement rates were an important determinant of area cover by barnacles. There was no obvious temporal factor contributing to the settlement of corals although settlement was higher at 6 meters than at 12 meters depth and on upper surfaces than on lower aces. The size-abundance distribution of coral colonies clearly shifted to larger sizes with increasing duration of immersion on upper surfaces at 6 meters depth.
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Abstract
Colonization of sand-and-cement-covered settlement plates at 6 and 12 meters depth on a coral reef was investigated at Pulau Payar in the Straits of Malacca off the western coast of Peninsular Malaysia. Plates were placed for varying durations from 1 to 10 months series A and for 2-month periods following placement at different times of the year series B. Four plates were placed in each study condition. The total area of settlement abundance and size distribution of molluscs sponges barnacles and coral were recorded. The rate of sedimentation and water properties were measured monthly throughout the study period. Salinity temperature and dissolved oxygen showed small fluctuations with season. Sedimentation rate however showed a marked peak in the rainy seasonJune-Augustat the shallower depth. Interms of mean area cover molluscs were the dominant type of the 4 major life-forms recorded throughout the immersion period on both upper and lower surfaces at 6 and at 12 meters depth although sponges occupied a similar area on the lower surface of plates. At 6 meters depth area cover of molluscs increased throughout the study period but at 12 meters depth cover by molluscs increased rapidly in the first 3-4 months then plateaued and started to decrease by 7-8 months probably due to predation. Barnacle cover on lower surfaces was higher than on upper surfaces. Maximum cover on lower surfaces occurred in February at both depths 8 at 6 meters and 4 at 12 meters. Coral cover was insignificant at all times maximum0.2. The increase in area cover by molluscs was the result mainly of growth as after the initial settlement of over 100 individuals per plate in the first 1-4 months numbers clined steadily throughout the remaining immersion period on both surfaces at both depths. By contrast the change in area cover by barnacles closely paralleled the change in numbers of individuals suggesting that settlement rates were an important determinant of area cover by barnacles. There was no obvious temporal factor contributing to the settlement of corals although settlement was higher at 6 meters than at 12 meters depth and on upper surfaces than on lower aces. The size-abundance distribution of coral colonies clearly shifted to larger sizes with increasing duration of immersion on upper surfaces at 6 meters depth.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia. QH91.75 K4N277 2000 Call Number |
| AGROVOC Term: | Coral reefs |
| AGROVOC Term: | Ecosystems |
| AGROVOC Term: | Molluscs |
| AGROVOC Term: | Barnacles |
| AGROVOC Term: | Marine ecology |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/11687 |
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