ANALISIS SALINITAS, SUHU DAN pH AIR DALAM BUDIDAYA UDANG VANNAMEI (Litopenaeus Vannamei)MENGGUNAKAN AIR TANAH DI KECAMATAN NGADIROJO KABUPATEN PACITAN

White shrimp (Litopenaeus vannamei) is one type of shrimp whose natural habitat is located on the coast and sea, Shrimp pond is one type of habitat that is used as a place for shrimp farming activities. Based on its tolerance to salinity, the White shrimp belong to the marine euryhaline class. Therefore, the authors are interested to conduct research on "Analysis of Temperature Salinity and pH Water In White Shrimp Farming (Litopenaeus vannamei) Using Ground Water In Sub-districts Nadirojo Districts Pacitan". This research to determine the fluctuations of Salinity, Temperature and pH at white shrimp ponds (Litopeneaus vannamei) that use ground water as a medium of cultivation in Sub-district Ngadirojo District Pacitan. The results of this study are expected to provide insight for researchers and in particular provide information to white shrimp (Litopeneaus vannamei) by farmer. This research was conducted on 02 February 2017 until 12 May 2017 at shrimp pond of Village Hadiwarno, Sub-district Ngadirojo, Districts Pacitan , East Java. The method used in this study is are descriptive analysis that provides an overview or description of a situation as clear as possible without any treatment of the object under study. The analysis used in this study using time series analysis, the purpose of this analysis is to separate the time series consisting of complex cyclic components into several functions. Spectrum density of salinity, temperature, pH water of Vannamei shrimp pond (Litopenaus Vannamei) is searched with statistica for windows 6.0 software. The results showed that fluctuations in each parameter of water quality were observed. Salinity in the ponds one peak fluctuation period at 139.5 (8 hour / cycle) or 46 days in (93 days), ponds two peak periods fluctuation period 150 (8 hour / cycle) or 50 days in (100 days) and a three-point peak pond fluctuation period of 64.5 (8 hour / cycle) or 21 days within (86 days). Temperatures at the pond one point peak fluctuation period in the period of 2.968 (8hour / cycle) within (93 days). ponds two periods of the fluctuation period of 2.97 (8 hour / cycle) periods within (100 days) and the three-point fluctuation pond of the period of 2.966 (8 hour / cycle) within (86 days). pH in the pond at one point of the fluctuation period at 17.44 (8 hour / cycle) or 6 days in (93 days), the second peak period fluctuation period of 17.65 (8 hour / cycle) or 6 days within (100 days ), and the third pond fluctuates the period of 17.2 (8 hour / cycle) or 6 days within (86 days)