In situ measurement of photosynthetic capacity in scleractinian corals (Acropora formosa and Pocillopora damicornis) during the 2010 massive coral reef bleaching event in Pulau Tioman, Malaysia

Kee Alfan Abdul Adzis, Affendi Yang Amri, Julian Hyde, Nasrulhakim Maidin, Izarenah Md Repin, Aw Soo Ling, Che Abd. Rahim Mohamed

Research output: Contribution to journalArticle

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Abstract

In situ measurement of Acropora formosa and Pocillopora damicornis photosynthetic capacity was conducted to evaluate the severity of the massive coral reef bleaching event in Pulau Tioman, Peninsular Malaysia in 2010. Diving-PAM was used to measure the effective quantum yield (δF/F m') which represents the photosynthetic capacity of the corals. The δF/Fm' for A. formosa and P. damicornis during bleaching were reduced to 88.06% and 38.89% of its pre-bleaching value, respectively. Both species showed signifcant differences for the two conditions (ANOVA, P<0.05). The suppression of its photosynthetic capacity was further supported by its initial (Fo) and maximum (Fm) fuorescence. During bleaching, Fo for A. formosa and P. damicornis was reduced to 94.08% and 63.98% of its pre-bleaching value, respectively. For Fm, A. formosa and P. damicornis recorded 97.88% and 79.30% reduction from its prebleaching value, respectively. Both species recorded signifcant differences for Fo and Fm between pre-bleaching and bleaching conditions (ANOVA, P<0.05). There was massive coral reef bleaching for 16 sites with water temperature of 32°C. This study demonstrated the severity of the massive coral reef bleaching event to A. formosa and P. damicornis photosynthetic capacity in Pulau Tioman and that it was a not a localized event.

Original languageEnglish
Pages (from-to)85-96
Number of pages12
JournalJournal of Science and Technology in the Tropics
Volume8
Issue number2
Publication statusPublished - Dec 2012

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Reefs
Bleaching
Analysis of variance (ANOVA)
Pulse amplitude modulation
Quantum yield

Keywords

  • Acropora formosa
  • Coral bleaching 2010
  • Diving-PAM
  • Photosynthetic capacity
  • Pocillopora damicornis

ASJC Scopus subject areas

  • General
  • Engineering(all)

Cite this

In situ measurement of photosynthetic capacity in scleractinian corals (Acropora formosa and Pocillopora damicornis) during the 2010 massive coral reef bleaching event in Pulau Tioman, Malaysia. / Adzis, Kee Alfan Abdul; Amri, Affendi Yang; Hyde, Julian; Maidin, Nasrulhakim; Repin, Izarenah Md; Ling, Aw Soo; Mohamed, Che Abd. Rahim.

In: Journal of Science and Technology in the Tropics, Vol. 8, No. 2, 12.2012, p. 85-96.

Research output: Contribution to journalArticle

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abstract = "In situ measurement of Acropora formosa and Pocillopora damicornis photosynthetic capacity was conducted to evaluate the severity of the massive coral reef bleaching event in Pulau Tioman, Peninsular Malaysia in 2010. Diving-PAM was used to measure the effective quantum yield (δF/F m') which represents the photosynthetic capacity of the corals. The δF/Fm' for A. formosa and P. damicornis during bleaching were reduced to 88.06{\%} and 38.89{\%} of its pre-bleaching value, respectively. Both species showed signifcant differences for the two conditions (ANOVA, P<0.05). The suppression of its photosynthetic capacity was further supported by its initial (Fo) and maximum (Fm) fuorescence. During bleaching, Fo for A. formosa and P. damicornis was reduced to 94.08{\%} and 63.98{\%} of its pre-bleaching value, respectively. For Fm, A. formosa and P. damicornis recorded 97.88{\%} and 79.30{\%} reduction from its prebleaching value, respectively. Both species recorded signifcant differences for Fo and Fm between pre-bleaching and bleaching conditions (ANOVA, P<0.05). There was massive coral reef bleaching for 16 sites with water temperature of 32°C. This study demonstrated the severity of the massive coral reef bleaching event to A. formosa and P. damicornis photosynthetic capacity in Pulau Tioman and that it was a not a localized event.",
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