Kangkuso Analuddin, Jamili1, Rasas Raya, Andi Septiana and Saban Rahim
Mangrove ecosystem at the Rawa Aopa Watumohai (RAW) National Park is one of among the most protected ecosystems in the Southeast Sulawesi Region of Indonesia. The present study was aimed to elucidate the structural characteristics of mangrove forest at RAW National Park, knowledge of which fundamental for conservation and management that of National Park. The growth parameters of mangrove species including stem diameter at breast height DBH, tree height H and crown diameter CD were measured in the 50 quadrats of 100 m2 wide each, which were placed near the seashore, midle area and near the land of mangrove forest. The Rhizophora apiculata and Rhizophora mucronata were the most dominant mangrove near the seashore and midle sites, while Ceriops tagal and Lumnitzera Littorea were the most dominant mangrove near the land site. The spatial structural of mangroves at the Rawa Aopa Watumohai National Park seems to realize the zonation because many similarity index values of paired stands were estimated as zero. The skewness of DBH for R. apiculata and R. mucronata was found nearly zero, which indicated normal distribution, while the skewness of DBH for Ceriops tagal and Lumnitzera littorea was possitive, which indicated L-shaped distribution
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