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Long-term assessment of an innovative mangrove rehabilitation project: case study on Carey Island, Malaysia.

Motamedi S, Hashim R, Zakaria R, Song KI, Sofawi B - ScientificWorldJournal (2014)

Bottom Line: Further, a large number of mangrove seedlings were planted using different techniques.The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings.As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

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A row of natural recruits in the study site at the site near the detached breakwater (June 2014).
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fig4: A row of natural recruits in the study site at the site near the detached breakwater (June 2014).

Mentions: Our most recent observation (June 2014) revealed a few new natural recruits outside the rehabilitation site. The natural recruits are Avicennia marina and Rhizophora apiculata, which are now more than 1 m tall with well-developed spreading root systems (Figure 4). The growth of natural recruits indicates that the site is now biologically ready for further mangrove rehabilitation. Based on our findings, trying to rehabilitate the mangrove forest at the target site is worthwhile.


Long-term assessment of an innovative mangrove rehabilitation project: case study on Carey Island, Malaysia.

Motamedi S, Hashim R, Zakaria R, Song KI, Sofawi B - ScientificWorldJournal (2014)

A row of natural recruits in the study site at the site near the detached breakwater (June 2014).
© Copyright Policy - open-access
Related In: Results  -  Collection

Show All Figures
getmorefigures.php?uid=PMC4109262&req=5

fig4: A row of natural recruits in the study site at the site near the detached breakwater (June 2014).
Mentions: Our most recent observation (June 2014) revealed a few new natural recruits outside the rehabilitation site. The natural recruits are Avicennia marina and Rhizophora apiculata, which are now more than 1 m tall with well-developed spreading root systems (Figure 4). The growth of natural recruits indicates that the site is now biologically ready for further mangrove rehabilitation. Based on our findings, trying to rehabilitate the mangrove forest at the target site is worthwhile.

Bottom Line: Further, a large number of mangrove seedlings were planted using different techniques.The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings.As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

View Article: PubMed Central - PubMed

Affiliation: Department of Civil Engineering, Faculty of Engineering, University of Malaya, 50603 Kuala Lumpur, Malaysia.

ABSTRACT
Wave energy and storm surges threaten coastal ecology and nearshore infrastructures. Although coastal structures are conventionally constructed to dampen the wave energy, they introduce tremendous damage to the ecology of the coast. To minimize environmental impact, ecofriendly coastal protection schemes should be introduced. In this paper, we discuss an example of an innovative mangrove rehabilitation attempt to restore the endangered mangroves on Carey Island, Malaysia. A submerged detached breakwater system was constructed to dampen the energy of wave and trap the sediments behind the structure. Further, a large number of mangrove seedlings were planted using different techniques. Further, we assess the possibility of success for a future mangrove rehabilitation project at the site in the context of sedimentology, bathymetry, and hydrogeochemistry. The assessment showed an increase in the amount of silt and clay, and the seabed was noticeably elevated. The nutrient concentration, the pH value, and the salinity index demonstrate that the site is conducive in establishing mangrove seedlings. As a result, we conclude that the site is now ready for attempts to rehabilitate the lost mangrove forest.

Show MeSH
Related in: MedlinePlus