Growth Rates Analysis of Porites Corals from Nusa Penida, Bali


  • Camellia Kusuma Tito Institute for Marine Research and Observation, Ministry of Marine Affairs and Fisheries, Jl. Baru Perancak, Jembrana, Bali 82251, Indonesia
  • Agus Setiawan Institute for Marine Research and Observation, Ministry of Marine Affairs and Fisheries, Jl. Baru Perancak, Jembrana, Bali 82251, Indonesia
  • Sri Yudawati Cahyarini Geotechnology Research Centre, Indonesian Institute of Sciences Kompleks LIPI, Jl. Sangkuriang, Bandung 40135, Indonesia
  • Muji Wasis Indriyawan Marine and Coastal Resource Management, Ministry of Marine Affairs and Fisheries, Jl. Bypass Prof. Ida Bagus Mantra, Gianyar, Bali 80581, Indonesia



coral growth rates, densitometry, Nusa Penida, Porites, SST


The annual growth of Porites coral is represented by a pair ofhigh- and low-density bands. Environmental changes in the ambient watersinfluence the pattern of these annual density bands. Five colonies of Poritescorals from Nusa Penida, Bali were investigated to analyze their annuallinear growth rates using coral densitometry. From the analysis it was foundthat the annual linear growth rates of the colonies varied between 0.8924 to1.0012 cm/yr. The trends of the colonies growth rates also varied. Twocolonies showed a decreasing trend, while the others showed an increasingtrend. The annual linear growth rates of most of the colonies were not
influenced by sea surface temperature (SST); only one out of five colonieshad a significant correlation with SST (R = 0.66, p-value < 0.05).


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