Potential impact of climate change on water resources availability in Bantaeng District, South Sulawesi Province

Abstract

As a result of climate change, the condition of the rain pattern will be more extreme, where in the rainy season, the rainfall will be higher so that it can trigger more floods and landslides; while in the dry season, the rainfall will be less added by increasing evaporation due to increased temperatures which can trigger drought disasters. The objective of this research was to what extent the impact of climate change on water availability which will be used as the main raw material for Municipal Water in Bantaeng Regency. The research method was descriptive qualitative with cross sectional approach. The results of climate change projections showed that the potential monthly average surface water discharge in Bantaeng Regency, especially the watershed used by PDAM, changed fluctuatively. During the rainy season, the projected run-off discharge increased by around 15%; while during the dry season it decreased by around 13% in the Nipa-Nipa, Gusung, and Kaili Watershed. This indicated that the vulnerability of surface water resources during the peak of the dry season (August) to the watershed with Municipal Water intakes, however, in general, the availability of surface water resources in the three watersheds was relatively safe as indicated by the projection results of the run-off discharge average annual rate increased by 4%

Investigation of Microplastic Exposure to Marine Fish in the Marine Tourism Area of Makassar City

“…The content of microplastics in fish that live in the Makassar City KWB tourist destination is a warning so that all of us can make efforts and efforts and care for the environment by not littering, especially plastic-type waste, because the waste is not degraded (Chaerul, Gusty, Marzuki, & Nur, 2021). All types of microplastic contaminants identified in the three fish samples obtained from the waters around Samalona Island are secondary microplastics or microplastics originating from human activities.…”

Comparison of the Strength of Biodegradation of Pyrene between Symbiont Bacteria of Marine Sponges and Bacteria Isolated from Seawater

“…Based on these variables, it is known that the bacterial isolate of Bacillus licheniformis strain ATCC 9789 (Bl), isolated from the marine sponge Auletta sp., has a relatively balanced biodegradation power against pyrene compared to bacteria of the Sphingobacterium sp. strain 21 (Sb) was isolated from seawater contaminated with PAHs [97]. Suppose the contamination of the hydrocarbon component increases, and it is predicted that it will have an impact on decreasing the quality of ground and surface water so that the availability of clean water will decrease [98] both in water areas (sea), land and air.…”