Mangrove Vegetation Analysis and Integrated Management Approaches in Mandul Island North Kalimantan

The researches on Mangrove in Mandul Islands are conducted on January 2010. The result of inventorization and exploration shows that Mandul Island has 17 types of mangrove, which is included in 13 genus and 11 species. Based on the provision of IUCN, 13 out of 17 mangrove’s types in Mandul Island are categorized as rare types of mangrove with the rare status from vulnerability (VU) to critical (CR). The result of vegetation analysis toward mangrove forest in Mandul Island for each level of growth shows that the level of tree is dominated by Sonneratia alba (K = 193 individual/ha; BA = 6.46 m2/ha; NP = 90.75) and Avicennia officinalis (K = 133 individual/ha; BA = 10.77 m2/ha; NP = 89.29). The level of belta is dominated by Bruguiera parviflora (K = 167 individual/ha; BA = 0.67 m2/ha; NP = 94.60) and Sonneratia alba (K = 127 individual/ha; BA = 0.54 m2/ha; NP = 76.79). While the level of seedling is dominated by Avicennia officinalis (K = 196,667 individual/ha), Avicennia marina (K = 96,667 individual/ha) and Avicennia alba (K = 93,333 individu/ha). Based on the criteria of mangrove damage, mangrove forest in Mandul Island is included in damaged and rarely criteria. Mangrove plant has lot of function, one of them for health which is able to use as medicine ingredient and natural insecticide or pesticide. Because of that, the development of research toward utilization needs to be developed beside the effort to conserve the existing mangrove. Anticipation should be taken toward the threat to mangrove existence considering the development in Mandul Island is very rapid. Some stakeholders such as fisheries department, Pertagas, forest department and the public should be involved in mangrove management. International Conference on Innovative Trends in Multidisciplinary Academic Research. Hal. 233-242