Diversity of molluscs in the mangrove forest area of Cengkrong Beach-Trenggalek

Research on the study of the diversity of molluscs in the mangrove forest area of Cengkrong Beach – Trenggalek has an important role in knowing the decline in the ecological function of mangrove forests due to exploitation. The exploitation that occurs is the illegal logging of mangrove trees. The purpose of this study was to analyze environmental conditions through physic-chemical parameters, analyze the relationship between environmental conditions, and the diversity of molluscs in the mangrove forest Cengkrong Beach- Trenggalek. Sampling was carried out at three stations with 27 plots. Sampling using a purposive sampling technique with the belt transect method then measures environmental conditions. Data analysis using regression test. The results showed that the conditions of pH, temperature, salinity were normal. The diversity of molluscs found was 13 species consisting of 11 species from the Gastropoda class and two species from the Bivalvia class. Furthermore, there is a significant relationship between environmental conditions and the diversity of molluscs.