Struktur Komunitas Keong Di Empat Zona yang Berbeda di Mangrove Munjang Kurau Barat, Bangka Tengah

Abstract

Snails in the mangrove ecosystem have an important role in the ecology of nutrient dynamics, especially in the West Munjang Kurau mangrove forest, Central Bangka. On the other hand, 60-70% of the forest has experienced significant damage and potential decline. Therefore, limited research has been carried out to provide information about the species composition of mangrove snails in four mangrove ecosystem zones with different conditions. Gastropod samples were taken based on purposive sampling method. The environmental data observed were air temperature (°C), air pH, DO (mg/l), salinity (%), canopy cover (%), maximum INP, tree density (trees/Ha), and substrate type. The study found 17 types of gastropods with the highest number of individuals being Sphaerassiminea miniata and the lowest being Littoraria pallescens, Lisachatina fulica, and Vittoida variegata. The results of the CCA analysis showed three groups of snails in association with environmental variables, namely groups that were not strongly associated with any variables. The second group is slightly associated with tree density and the group is related to INP max and substrate.