Carbon Absorption Potential in Sargassum sp. and Padina sp. in The Waters of East Melano Bay, Lemukutan Island, Bengkayang District, West Kalimantan Province

Increasing human activities have caused negative impacts on the environment, such as rising earth's surface temperature and extreme climate change. This impact is caused by increased greenhouse gas emissions such as carbon dioxide and methane. Marine vegetation such as seaweed Sargassum sp. and Padina sp. It can also help absorb carbon and reduce carbon emissions through the process of photosynthesis. Seaweed that has the potential to reduce carbon emissions is Sargassum sp. and Padina sp. which is located in the waters of East Melano Bay, Bengkayang Regency. This study aims to determine the density of seaweed species Sargassum sp. and Padina sp. in East Melano Bay, as well as analyzing the carbon sequestration potential of seaweed. The method used is to use the descriptive method of exploration. The descriptive method of exploration aims to describe the state of a phenomenon. This study uses the quadrant transect method in sampling in the field, while the determination of carbon content uses the analysis of biomass, ash content, moisture content and volatile substances. The results of the analysis that have been carried out show the density value of Sargassum sp. has the highest value of 102.4 Ind/m2 and Padina sp. 76.05 Ind/m2. Carbon sequestration by seaweed Sargassum sp. is 105,637 tons of C/ha and Padina sp. amounting to 78,032 tons of C/ha. Based on the description in this study, it can be concluded that the highest carbon absorption is in Sargassum sp.