Ecology, Environment and Conservation Paper

Vol 25, Aug Suppl. Issue, 2019; Page No.(S63-S73)

MANGROVE ECOSYSTEM CONDITION IN THE CONSERVATION AREA OF PANTAR STRAITS AND SURROUNDING SEA IN ALOR REGENCY

Fonny J.L. Risamasu, Ismawan Tallo and Kiik G. Sine

Abstract

The mangrove ecosystem in the Pantar Strait and the surrounding sea is a habitat for various marine biotaand is currently used for fishing, coastal cultivation, recreation and so on. The study was conducted to determine the condition of mangrove ecosystems in the Pantar Strait and the surrounding sea. This research has been conducted from October to December 2016, using a direct observations method in the field.Mangrove sampling was using the quadratic transects method. Data can be used to determine the value of Density, Frequency, Dominance and Important Value Index (IVI). The results showed that there were 14 mangrove species belong to 11 genera and 9 families. The location with the highest species, genus and mangrove family is in Hula, followed by Teluk Mutiara, and the lowest in Paliboo. Mangrove performance in the six locations showed that the condition of mangroves at the tree level was categorized as good, while at the sapling / seedling level it was classified as severely damaged, but the seedling level was classified as good. Mangrove species have highest Important Value Index were Sonneratia alba, Aegialitis annulata, Avicennia marina, R. mucronata, Exocaria agallocha and Pemphis acidula. These six mangroves species have a greater level mastery of space because the substrate where it grows is suitable to the growth which is the sand substrate, muddy sand, dead coral beds, gravel and branch coral fractures. Referring to the results of this study, it is necessary to make efforts to overcome mangrove damage all seven locations through rehabilitation of mangroves, supervision and enforcement of rules.

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