<![CDATA[This study was conducted at the Village of Delodbrawah, Jembrana Regency, Bali. It was aimed to know the managementpattern available at the Village of Delodbrawah, the effect of maintenance to the water quality of shrimp pond and river, vegetationcondition and river biota. The study was conducted for approximately 3 months in each pond starting from January up to May 2007.Shrimp ponds found in the Village of Delodbrawah use intensive and semi intensive management with open system where thechange its water maximaly from well and river. Semi intensive pattern used vitamin C as a mixture of food and the intensive one usedgarlic (Allium sativum L) as antibiotic. The use of natural antibiotics can increase the age of the shrimps up to 96 days before it washarvested. While the one using other probiotics, the age of the shrimps was 88 – 90 days shorter after it was harvested.The data of water quality showed that pond 1 that used intensive system had more stable water quality parameter and supportthe culture compared with other blocks. At the end of the culture of PO4 and NO2 tends to increase blooming plankton such asChlorella sp, Oscillatoria sp, Cyclotella sp. But it did not affect the quality of river water which was still under the threshold ofstandard quality of water class III Government Regulation of the Republic of Indonesia Number 82 of 2001 concerning theManagement of Water Quality and Water Pollution Control.Vegetation around the shrimp ponds were dominated by Nipah (Nypa fruticans Wurm) in the location nearing the river estuary.From the production data pond 1 had the best production, related to the nipah functioning as bioremediator of surrounding waters.The other location is near palawija plants. The most prominent river biota is kijing (Bivalvia) which looked bigger and many innumbers in the location where there are two disposal channels, pond disposal and agricultural channel that transports higher organicsubstance to be disposed to the river. Affectiveness of the intensive pond management optimally produces the oldest age of 96 days, the harvest of 3,964 – 4,271kg/1500 m2, Survival Rate (SR) of 98% and Feed Convertion Ratio (FCR) of 1,32]]>
