Phytoplankton Community Structure As An Indicator Of Fertility In Mangrove Ecosystem Waters And Surrounding Pejarakan, Bali, Indonesia Raden Fajar Aflah Richtiana, Ario Damar, Sulistiono
Department of Aquatic Resources Management, Faculty of Fisheries and Marine Science, IPB University, Bogor, 16680, Indonesia
Abstract
Pejarakan village is a village that has an area of aquaculture adjacent to the mangrove ecosystem. The waste produced by the aquaculture can cause risks to surrounding waters. This study aims to analyze the structure of the plankton community as an indicator of water quality in the waters of mangrove ecosystems and surrounding areas in Pejarakan, Bali. The research was conducted in September 2022, January 2023, September 2023, and January 2024 at 6 stations. Data analysis included abundance, diversity, evenness, dominance, similarity index, and principal component analysis. The results showed that phytoplankton were dominated by Bacillariophyceae and Dinophyceae, and the phytoplankton abundance ranged 96,388-316,852 cells/L. Plankton had a medium diversity index, a medium to high eveness index, and no dominance. The structure of the plankton community shows that these waters have a high level of diversity category.
