Spatial Distribution of Marine Debris Pollution in Mangrove-Estuaries Ecosystem of Kendari Bay

Abstract

Marine debris is a solid material that is either accidentally or accidentally disposed of in a river that empties into the sea or is left directly in the sea. The research on marine debris is carried out in the estuary and mangrove forest areas of Kendari Bay which is assumed to be accommodated garbage sites that enter the coastal area. The purpose of this study is to identify the types of composition and potential sources of marine waste contributors found in several river estuaries and mangrove forest areas, to know the density of marine debris and to mapping the distribution of marine debris from several river estuaries and mangrove forest in Kendari Bay. This research was conducted by survey method and using 5x5 quadratic plots in a random sampling. The data obtained were analyzed statistically and map overlays. The results showed that the composition of marine debris types in mangrove ecosystems and estuaries in Kendari bay generally consisted of plastic (plastic bottles, plastic bags, ropes, pipettes, plastic cups), metals (beverage cans), rubber, glass (glass bottles) and others (cloth, paper and others) with the dominant amount of plastic waste. The highest total density of waste types in the four locations in the mangrove ecosystem and river estuary in Kendari Bay is at station 1 (Lahundape Mangrove Tracking Area). The density of plastic waste dominates the four locations in the mangrove ecosystem with the highest value of 3,024 items/m2 in the mangrove ecosystem around the estuary of Mandonga and Lahundape. The high distribution of marine debris in the mangrove ecosystem is found at station 1 and station 2 because it is directly related to the river flow which contributes greatly to marine debris input in Kendari Bay.