Contribution of Environmental Parameter on Stability Ecosystem of Habitat of Molluscs

This research was carried out from May to September 2013, located around Tallo River estuary, District of Tallo, Municipality of Makassar, Indonesia. The aim of this research was to determine the contribution of environmental parameters on the stability of ecological mollusks, using a quantitative method of sampling with a Principal Component Analysis Approach (PCA). The results of this research are expected to provide an overview and information for further research and as consideration for stockholders to ascertain the suitability of ecological habitats for the survival of molluscs. The abundance and percentage of Molluscs were found in three classes , i.e., 285 ind/m 2 of Pelecypod s or 61%, 95 ind/m 2 95 of gastropods or 20%, 90 ind/m 2 of Bivalves or 19%. The contributions of environmental parameters as an identifier in management of habitat of mollusc are that salinity is +0.1571 in the range of 20 to 31%. The contribution of the depth is 0.5284 with a value of 1-4 meters. A pH value is +0.5834 with a value of 7.7 to 8.2. Dissolved organic matter with a contribution is 0.0083 with a value of 21.98 to 52.74 ppm. Turbidity with a contribution is 0.1730 with a value of 2.8 to 7.25 NTU. The range is an optimal range for the growth and survival of molluscs at the research location.