Mangrove Propagule Dispersal And Early Growth Studies Of Avicennia Marina And Rhizophora Apiculata
| dc.contributor.author | Wong, Yun Yun | |
| dc.date.accessioned | 2018-07-26T07:19:40Z | |
| dc.date.available | 2018-07-26T07:19:40Z | |
| dc.date.issued | 2012-02 | |
| dc.description.abstract | A study was conducted to investigate the propagule dispersal and early growth of two common species in Malaysia, Avicennia marina and Rhizophora apiculata. Field studies were carried out at Kuala Pulau Betong, a coastal mangrove area in the west coast of Penang Island. Movements of the mangrove propagules were monitored by the release and recapture method while their early growth were examined at the site by tethering system. Another “enforced dispersal” experiment was conducted under laboratory condition. Dispersal attributes and propagule developments of both species were observed in the water of a range of salinities (0, 10, 20 and 30). The field results showed that the dispersal direction and distance were significantly different between the two species for both of the release points at upper and middle intertidal zones (P < 0.05). After one month, 98 % of the released propagules were found dispersed away from the study area mainly due to strong wave current. Furthermore, A. marina performed a better growth than R. apiculata in the study area but none of them was able to permanently establish after four months period. In the laboratory experiment, A. marina developed more rapidly than R. apiculata and they were successfully developed into young seedlings in the saltwater with salinities of 10, 20 and 30. Most of the propagule dispersal properties were found significantly different between species (P < 0.05) and between fresh and saltwater (P < 0.05). In conclusion, A. marina propagules were more readily spread out for a preferable habitat compared to R. apiculata; and they have dispersal properties of high survival rate, always buoyant and rapid growth in saltwater environments. Therefore, A. marina is better adapting to the water dispersal in the high wave and tidal influenced coastal areas. In this study area, natural regeneration is hard to take place due to wave effect and soil condition. For the mangrove planting project at similar exposed sites, A. marina should be a more appropriate species to plant in the mudflat area under proper control of wave effect. | en_US |
| dc.identifier.uri | http://hdl.handle.net/123456789/6047 | |
| dc.language.iso | en | en_US |
| dc.publisher | Universiti Sains Malaysia | en_US |
| dc.subject | The propagule dispersal and early growth | en_US |
| dc.subject | Avicennia marina and Rhizophora apiculata | en_US |
| dc.title | Mangrove Propagule Dispersal And Early Growth Studies Of Avicennia Marina And Rhizophora Apiculata | en_US |
| dc.type | Thesis | en_US |
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