Gastropod Community Structure at Sepanjang Beach, Yogyakarta Hanum Isfaeni, Rusdi, Reza Dino Mahardika, Risda Putri Indriani, Feni Oetari
Universitas Negeri Jakarta
Abstract
Sepanjang Beach is located in Gunungkidul Regency, Yogyakarta. This beach is composed of coral reefs which are one of the habitats of mollusks, including gastropods. Gastropods in the ecosystem act as decomposers and provide micro-ecosystem nutrients for microorganisms. In addition, it plays a role in the food chain in coastal ecosystems. Gastropod diversity and abundance can affect this. Therefore, an analysis of the diversity and abundance index of gastropods in the coastal ecosystem was carried out. This study uses an exploratory descriptive method with data collection techniques using quadratic transects. The data obtained were analyzed indices of abundance, diversity, uniformity, and dominance. The results showed that there were 26 species of gastropods living in the waters of the Panjang Coast, DI Yogyakarta. In addition, the highest abundance of gastropods was at station 4 which was far from the beach entrance, the level of diversity was moderate, the level of species distribution was fairly even, and the level of dominance was high.
Keywords: Mollucs, Quadrant Transect, Sepanjang Beach
