The Influences of Physical and Chemical Factors to Coral Reef Ecosystem on Coastal Waters Village Eri, Outer Ambon Bay

Abstract

This research conducted in coastal waters of Eri, Outer Ambon Bay on July 2011 to analysis the influences of physical-chemical factors of coral reef ecosystem on coastal waters of Eri. Physical-chemical factors of coastal waters measured used CTD. The result measurement data of Current meter and CTD carried out by computer use software equipment. Data processing and graph analyze use the software of Microsoft Excel 2003 and Golden Software Surfer 9. The sample of dissolved oxygen, phosphate and nitrate taken with Nansen Bottle. Dissolved oxygen determined by pursuant to titration Winkler. Rate of phosphate and nitrate analysis by Strikland and Parsons method (1968). The enumeration sample of dissolved oxygen, rate of phosphate and nitrate conducted in laboratory of LIPI Ambon. From research known that the temperature in coast of Eri on July range from 25.9°C – 27.3°C. The salinity ranges from 33.5 ppt – 34.2 ppt. The current sea in coastal water of Eri moves follow the current install pattern and withdraw in Ambon Bay. Others influenced by wave which is resulted by monsoon. The turbidity around coast more predominated by inorganic material in the form of refinement sand which suspend effect of current in coast. Phosphate rate detected range from 0.00489 – 0.0079 ppm and nitrate rate range from 0.0390 – 0.0671 ppm. While gyration assess of dissolve oxygen is lowering with the value 1.99 ppm until 3.38 ppm. All of physical and chemical factor was good to influenced coral reef ecosystem on coastal water village Eri.