CD Skripsi
Analisis Densitas Zooxanthellae Pada Karang Acropora Sp Di Pulau Pagang, Kabupaten Pesisir Selatan, Provinsi Sumatera Barat
Coral reefs play a crucial role in maintaining the stability of marine ecosystems. Healthy coral growth is often indicated by the presence of symbiotic zooxanthellae within the coral tissue. The density of zooxanthellae varies and is influenced by several factors. Depth affects these limiting factors—such as light intensity, temperature, and ocean acidity—which in turn impacts zooxanthellae density. This study aims to examine the differences in zooxanthellae density in Acropora corals based on depth. This research was conducted from February to March 2023 in Setan island, West Sumatra. A survey method was employed, and coral samples were collected using purposive sampling across three different depths, based on the distribution of branching Acropora coral formations. The results showed that the average zooxanthellae density at a depth of 3 meters was 1.75×10⁶ cells/cm², at 5 meters was 0.92×10⁶ cells/cm², and at 7 meters was 0.66×10⁶ cells/cm². One-way ANOVA test results indicated a statistically significant difference in zooxanthellae density among the three depths. The results of the LSD test revealed a significant difference, indicating that increasing depth leads to a significant decrease in zooxanthellae density.
Keywords: acropora, coral, densitas zooxanthellae, zooxanthellae
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