Identifikasi Fungi pada Dekomposisi Serasah Daun Avicennia marina pada Tingkat Salinitas 21-30 ppt di Belawan

Abstract

Litter production is very important for the sustainability of mangrove ecosystems, because it contributes organic matter to mangrove ecosystems. Decomposition by decomposing organisms produces simple essential nutrients that can be utilized to sustain the growth of mangroves and other biota. Decomposed mangrove litter will produce nutrients that are absorbed by plants and used by microorganisms on the forest floor. Litter undergoes decomposition involving the role of microorganisms such as bacteria and fungi. Decomposition will run faster if there is the addition of these microorganisms. This study aims to determine the rate of decomposition of Avicennia marina leaf litter, fungi that play a role in decomposition, and carbohydrate and protein levels in decomposed litter. This study used the litter bag method to place the litter to be planted and the isolation method to identify the types of fungi. This research was conducted in Fisherman Village, Belawan Bahari, Medan Belawan. The results of this study showed the decomposition rate of Avicennia marina leaf litter was 6.69 and the types of fungi contained in the decomposed litter were 5 types. The average percentage of carbohydrate content contained in the decomposed litter is 8.7 and protein content is 7.7.