ANALISIS KUALITAS LINGKUNGAN DAN PRODUKTIVITAS TAMBAK BUDIDAYA UDANG WINDU SISTEM TEKNOLOGI TRADISIONAL DI KABUPATEN BULUNGAN

Pond as a controlled medium used to raise or raise shrimp must meet requirements for survival and growth of shrimp. This study aims to analyze the quality factor pond environment that affects the productivity of tiger shrimp ponds in the Bulungan Regency. The implementation of this research was carried out in February-April 2019. This study used the regression method multiple linear and sampling is done by purposive sampling method. Based on the results of the simultaneous test that the variables of temperature, salinity, water pH, alkalinity, hardness, dissolved oxygen, water phosphate, water iron, soil pH, material soil organics, soil organic carbon, soil phosphate, soil ammonia, soil nitrate, soil nitrate, soil potassium, and soil iron have a major effect on the productivity of ponds by 128,347 kg/ha/cycle. While the partial test obtained 8 variables that directly affect the productivity of shrimp ponds, namely water