Catatan Biodiversitas Gastropoda pada Ekosistem Mangrove Desa Kramat Kecamatan Mananggu Kabupaten Boalemo, Provinsi Gorontalo

Abstract

Anthropogenic actions that degrade mangroves in coastal areas are suspected to reduce the biodiversity of gastropod fauna in this region. The purpose of this research,  conducted from July to October 2021, was to evaluate the number of species, dominance, and diversity of gastropods and the richness and similarity of gastropod communities in the coastal mangrove ecosystem in Kramat Village, Mananggu-Boalemo District. The survey method carried out by purposive sampling was on a 3-line transect as an observation station based on differences in the width of the mangrove belt. The study results recorded 14 species of gastropod members from 8 families at all stations. The highest presence was recorded in the family Potamidae, with members of Terebralia sulcata being the most abundant species at all stations. The unique environmental conditions in all stations are land conversion in the area behind the mangrove formation, and the substrate tends to be acidic (pH 6). This study indicates the complexity between stations as a habitat for live gastropods as epi and tree fauna in the mangrove community of Kramat Village.