ANALISIS KANDUNGAN NITRAT DAN FOSFAT PADA LOKASI BUANGAN LIMBAH TAMBAK UDANG VANAME (Litopenaeus vannamei) DI KABUPATEN BANGKA TENGAH PROVINSI KEPULAUAN BANGKA BELITUNG

organik mikroalga. Penelitian eutrofikasi. Kandungan parameter kualitas suhu, salinitas, pH DO lokasi menunjukan nilai yang masih memenuhi standar baku mutu yang bahwa tidak limbah tambak udang yang dihasilkan. ABSTRACT Pacific white shrimp shrimp cultivation in the coastal waters of Central Bangka is carried out intensively using artificial feed as the main shrimp feed. Problems in intensive cultivation are uneaten feed residues and metabolic wastes in the form of feces and urine which have the potential to cause fertility in aquatic ecosystems. Decomposition of organic matter by microorganisms will produce nitrogen compounds in the form of nitrate and phosphate. They will be absorbed by plants that have the potential to cause blooming algae. This study aims to test and analyze the content of nitrate, phosphate and other water quality parameters as well as the suitability of wastewater generated at the disposal site of pacific white shrimp ponds in Central Bangka Regency. The research locations were TLTA Shrimp Pond (Location 1), ALB Shrimp Pond (Location 2), and SDL Shrimp Pond (Location 3). The research method used quantitative descriptive analysis method. The results showed that the nitrate content at locations 1, 2 and 3 were 0.92±0.18 mg/L, 0.89±0.14 mg/L, and 0.93±0.21 mg/L, respectively, and phosphate content of 0.25±0.09 mg/L, 0.15±0.11 mg/L, and 0.23±0.15 mg/L, respectively. The nitrate and phosphate content still meets the standard quality criteria for pond waste water, but there is potential for eutrophication when they flow into estuary or seas area. Their values are in the range that can cause eutrophication. The content of water quality parameters TSS, BOD, COD, turbidity, temperature, salinity, pH and DO at all location points shows values that still meet quality standards which illustrate that there is no pollution from shrimp pond waste produced.