Analysis of organic content on sediment and mangrove density in mangrove conservation area, Mamburungan urban village, Tarakan city, Indonesia

Imra Imra (Department of Fisheries Product Technology, Faculty of Marine Science and Fisheries, Universitay of Borneo Tarakan, Indonesia.)
Minawati Minawati (Department of Aquatics Resource Management, Faculty of Marine Science and Fisheries, University of Borneo Tarakan, Indonesia)
Abdul Jabarsyah (Department of Aquatics Resource Management, Faculty of Marine Science and Fisheries, University of Borneo Tarakan, Indonesia.)

Indonesian Journal of Tropical Aquatic
Vol. 4 No. 2 (2021): August

The mangrove ecosystem in Mamburungan Village is known to have two dominant types of mangroves, namely Avicennia sp. and Sonneratia sp. The main factors that cause mangrove growth zoning are the type of substrate and the content of organic matter. This research was conducted through several stages, namely, determining the location, preparing tools and materials, taking sediment, and analyzing mangrove data. The highest organic matter content was found at station I of 2.53 % - 17.81 %, and the highest mangrove density ranged from 0.05 ind m-2 - 0.12 ind m-2 which was dominated by Avicennia sp. More organic matter content was found at a depth of 0 cm.