Abstract:
The objectives of this study was conducted to identify the compositions abundance of
mangrove species at Sg. Haji Dorani, which is located at the west coast area of Peninsular
Malaysia and to study the species richness, species evenness and species diversity of
mangrove ecosystem. Method of inventory that used like recorded the number of species
individuals, DBH, height of tree and stem category in each plot. There were 15 plots built
over 15 transects along 1 km seaward. Overall, there were mangroves species identified
and divided into two types of life form, tree and shrub. By using PC-ORD statistical
software version 3.2, species richness, species evenness and species diversity for each
species will be known. Avicennia marina showed the highest species richness (15),
species evenness (0.947) and species diversity (2.565). Meanwhile, there were six species
identified as the lowest species richness, species evenness and species diversity. The
species were sapling of Avicennia officinalis, sapling of Hibiscus tiliaceus, sapling of
Lumnitzera racemosa, seedling of A.marina, seedling of Excoecaria agallocha and
seedling of Hibiscus tiliaceus. However, for overall species at Sg.Haji Dorani, Avicennia
marina was the most frequent species found and indirectly dominated the area.
