Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians

Symbiodinium is described as a coccoid yellow-brown endo-symbiont, which inhabits coral tissues and provides photosynthetic products necessary for corals. However, under stressful conditions such as temperature change, the symbiotic relationship between Symbiodinium and corals may collapse and resul...

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Main Author:	Kamphol, Nadthikphorn
Format:	Thesis
Language:	English
Published:	2018
Subjects:	QH301 Biology
Online Access:	http://eprints.usm.my/48315/1/NADTHIKPHORN%20DO%20KAMPHOL_hj.pdf
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id	my-usm-ep.48315
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spelling	my-usm-ep.483152021-02-16T06:49:27Z Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians 2018-09 Kamphol, Nadthikphorn QH301 Biology Symbiodinium is described as a coccoid yellow-brown endo-symbiont, which inhabits coral tissues and provides photosynthetic products necessary for corals. However, under stressful conditions such as temperature change, the symbiotic relationship between Symbiodinium and corals may collapse and result in coral bleaching. Hence, this study was conducted to record coral species found in Pulau Songsong, Pulau Kendi and Pulau Redang, and to investigate the effects of temperature increased on the Symbiodinium cell density and health among coral species. Ten families with a total of 21 coral species were recorded. Diving-Pulse Amplitude Modulation (PAM) was used to determine the maximum quantum yield values (dark-adapted) (Fv/Fm), which is an indicator that helps to assess the current health status of corals. The in-situ Fv/Fm value of Porites somaliensis, Porites lutea, Goniopora cellulosa, Turbinaria mesenterina, Oulastrea crispata, Cyphastrea chalcidicum, Goniastrea retiformis and Pavona danai indicated that these corals were healthy and had adapted to maximum bottom light condition (600μmol quanta m-2s-1) during sampling day. Massive meandroid coral colonies like Coelastrea aspera and Goniopora cellulosa recorded high in its zooxanthellae density, 0.258±0.134x10-5cm-2, and 0.224±0.229x10-5cm-2, respectively, in 40-60mg/L total suspended solids (TSS) of turbid water area. Moreover, thermal stress experiments were conducted to investigate how the zooxanthellae thrive at 31°C to 37°C of water temperature. 2018-09 Thesis http://eprints.usm.my/48315/ http://eprints.usm.my/48315/1/NADTHIKPHORN%20DO%20KAMPHOL_hj.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Sains Kajihayat
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	QH301 Biology
spellingShingle	QH301 Biology Kamphol, Nadthikphorn Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
description	Symbiodinium is described as a coccoid yellow-brown endo-symbiont, which inhabits coral tissues and provides photosynthetic products necessary for corals. However, under stressful conditions such as temperature change, the symbiotic relationship between Symbiodinium and corals may collapse and result in coral bleaching. Hence, this study was conducted to record coral species found in Pulau Songsong, Pulau Kendi and Pulau Redang, and to investigate the effects of temperature increased on the Symbiodinium cell density and health among coral species. Ten families with a total of 21 coral species were recorded. Diving-Pulse Amplitude Modulation (PAM) was used to determine the maximum quantum yield values (dark-adapted) (Fv/Fm), which is an indicator that helps to assess the current health status of corals. The in-situ Fv/Fm value of Porites somaliensis, Porites lutea, Goniopora cellulosa, Turbinaria mesenterina, Oulastrea crispata, Cyphastrea chalcidicum, Goniastrea retiformis and Pavona danai indicated that these corals were healthy and had adapted to maximum bottom light condition (600μmol quanta m-2s-1) during sampling day. Massive meandroid coral colonies like Coelastrea aspera and Goniopora cellulosa recorded high in its zooxanthellae density, 0.258±0.134x10-5cm-2, and 0.224±0.229x10-5cm-2, respectively, in 40-60mg/L total suspended solids (TSS) of turbid water area. Moreover, thermal stress experiments were conducted to investigate how the zooxanthellae thrive at 31°C to 37°C of water temperature.
format	Thesis
qualification_level	Master's degree
author	Kamphol, Nadthikphorn
author_facet	Kamphol, Nadthikphorn
author_sort	Kamphol, Nadthikphorn
title	Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
title_short	Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
title_full	Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
title_fullStr	Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
title_full_unstemmed	Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians
title_sort	effects of temperature stress on symbiodinium spp. from selected scleractinians
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Sains Kajihayat
publishDate	2018
url	http://eprints.usm.my/48315/1/NADTHIKPHORN%20DO%20KAMPHOL_hj.pdf
_version_	1747821916267216896

Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians

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