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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
http://eprints.usm.my/48315/
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spelling my.usm.eprints.48315 http://eprints.usm.my/48315/ Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians 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 NonPeerReviewed application/pdf en http://eprints.usm.my/48315/1/NADTHIKPHORN%20DO%20KAMPHOL_hj.pdf Kamphol, Nadthikphorn (2018) Effects Of Temperature Stress On Symbiodinium Spp. From Selected Scleractinians. Masters thesis, Universiti Sains Malaysia.
institution Universiti Sains Malaysia
building Hamzah Sendut Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Sains Malaysia
content_source USM Institutional Repository
url_provider http://eprints.usm.my/
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
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
publishDate 2018
url http://eprints.usm.my/48315/1/NADTHIKPHORN%20DO%20KAMPHOL_hj.pdf
http://eprints.usm.my/48315/
_version_ 1692992773715656704
score 13.211869

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