Giant Clam (Tridacnae) Community Bioecology Studies in Patani, Central Halmahera regency.
Abstract
Giant clam is a type of giant mollusk that lives in coral reef ecosystems and is found in shallow waters up to 20 meters deep. Chemicals play an important role in cleaning up excess microorganisms so that the integrity of the marine environment is more securely maintained. Giant clams also have the function as a basic biofilter that cleans dissolved dirty substances to maintain the sea balance. This study aims to analyze the results of chemical bioecology in Patani Subdistrict, Central Halmahera Regency, North Maluku Province, as a basic step for the preservation and protection of clams. The study sample used the Purposive sample method with a belt transect tool. Data analysis used relative density analysis, density, morbidity index, cluster hierarchy, and linear regression by using SPSS. The results of the analysis showed that the clam with the highest relative abundance was Tridacna coreceae, and the lowest was Tridacna maxima. The species with the highest density value was Tridacna coreceae, and the species with the lowest density value was Hippus hippus. The overall distribution pattern is clustered, caused by the nature of clustered species or the existence of similar habitats and availability of food in an area. There are two clusters, namely the Patani Bay cluster and the Island (Liwo-Sayafi) cluster. The results of linear regression showed that temperature, pH, and brightness had a significant effect on abundance, while depth and salinity had no significant effect.
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