The ocean-atmospheric condition around Pieh Islands _ Western Sumatra, Indonesia and its role on coral reef resilience

International Conference on Climate Change 2018

Corvianawatie, C.^1,2 ; Abrar, M.^3 ; Wouthuyzen, S.^3 ; Darmawan^4 ; Kusumo, S.^5 ; Samsuardi^6 ; Yennafri^6 ; Salatalohi, A.^1 ; Hanif, A.^4 ; Permana, S.^4 ; Arrafat, M.Y.^6 ; Tanto, T.A.^7

Research Center for Oceanography, Indonesian Institute of Sciences (LIPI), Jl. Pasir Putih I, Ancol Timur Jakarta Utara

14430, Indonesia^1

University of Chinese Academy of Sciences, Beijing

100049, China^2

Development Unit for Oceanographic Human Resources Development LIPI, Jl. Raden Saleh 43, Jakarta Pusat

10330, Indonesia^3

Loka Kawasan Konservasi Perairan Nasional Pekanbaru, Tenayan Raya, Kota Pekanbaru, Riau, Kulim

28282, Indonesia^4

Bogor Agricultural University, Kampus IPB Dramaga, Jl. Raya Dramaga, Babakan, Dramaga, Babakan, Dramaga, West Java, Bogor

16680, Indonesia^5

Yayasan Minang Bahari (Sanari), Padang, Indonesia^6

Research Centre for Coastal Resources and Vulnerability (LRSDKP), Padang, Indonesia^7

关键词: Atmospheric conditions;    Atmospheric parameters;    Indian ocean dipoles;    Marine conservations;    Nutrient concentrations;    Oceanographic conditions;    Sea surface temperature (SST);    Southern oscillation;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/200/1/012063/pdf
DOI  :  10.1088/1755-1315/200/1/012063

来源: IOP

【 摘 要 】

Pieh Islands located at the Western Sumatra is one of the most affected areas by massive coral bleaching during 2015-2016. The persistence warming or cooling of sea surface temperature due to regional climate phenomena such as El Niño Southern Oscillation (ENSO) and Indian Ocean Dipole (IOD) put the coral reef into stress condition leading into coral bleaching. However, corals have an ability to recover from such bleaching condition into normal state by reducing its stressors. A suitable oceanographic condition such as normal range of temperature and salinity, low nutrient concentration, and low sedimentation rate could support corals recovery process. This study aims to understand the variability of the ocean and atmospheric data and its role in coral reef recovery. Data gained from in situ measurements of water quality at Pieh Marine Conservation Area (PMCA) on June 2018. Several historical ocean-atmospheric data were collected to analyze their temporal variability. It is confirmed that the bleaching event was caused by positive IOD and El Niño condition in 2015-2016. However, there is the sign of coral reef recovery during 2017-2018 which is suggested due to the relatively normal condition of the ocean and atmospheric parameters in Pieh Islands.