The effectiveness of filopaludina javanica and sulcospira testudinaria in reducing organic matter in catfish (clarias sp.) aquaculture wastewater

Abstract

The residual or wastewater from the cultivation process that is discharged directly into common waters can reduce the quality of the waters because it contains a lot of organic material from organism feces and feed residue, so, water quality management is needed. The objective of this study was to determine the ability of Tutut Jawa and Susuh Kura snails to reduce total organic matter in catfish culture waste. The research method was the experiment with 2-factor Factorials Completely Randomized Design. The first factor was the time measurement (4, 8, 12, and 16 hours) and the second factor was the abundance of the Tutut Jawa and Susuh Kura snails (100%, 75%, 50%, 25%, and control). The Tutut Jawa snails were taken from the pond at UPR Sumbermina Dau. The results obtained in the treatment with the addition of Tutut Jawa snail, the total organic matter content decreased at quality during the study was in a condition that could tolerate the Tutut Jawa snails and freshwater 75% snail density by 90% (from 68.75 mg/L to 5.31 mg/L) at the 12th hour. The treatment with the addition of Susuh Kura at a density of 25%, the total organic matter content was decreased by 87% (from 72.48 to 9.35 mg/L) at the 8th hour. The conclusion is that the addition of Tutut Jawa snail and / or Susuh Kura can reduce the total organic matter content to the water quality standard.