Kajian Perbaikan Mutu Air Gambut Untuk Kegiatan Budidaya Ikan Di Desa Sungai Tohor, Kecamatan Tebing Tinggi Timur, Kabupaten Kepulauan Meranti

Abstract

This study aims to analyze the study of the effect of improvement of water quality parameters of peat water with filter system, biological coogulation and microalgae for fish farming activities. The research was conducted in Sungai Tohor Village, Tebing Tinggi Timur Subdistrict, Meranti Islands Regency. Procedure of research activity is done by way of peat water coming from canal pumped by multilevel filtering. Water filtration by drum stratum is intended with macro and micro filtration separation, macro filtering using only ijuk and burlap sack. While microscreening using layers of krikil, sand and charcoal, and the provision of lime tohor. The results showed that there was a change (increase) to pH value from 3.7 to 5.4; Dissolved CO2 decreased from 31.9 to 24.6 mg /l, dissolved DO increased from 3.92 to 4.09 mg /l, TSS decreased from 82.5 to 4.5 mg /l, increased brightness from 64.5 to 68.2 cm and the temperature rises from 27.9 to 30.1 °C and there is growth and multiplication of microalgae on the surface of water. From the experimental maintenance of catfish dumbo done, generally not possible to survive, because the still high dissolved CO2 which is toxic to fish and pH that still needs to be improved again. Need further research on the technique of reducing the dissolved CO2 value and increasing the pH value, thus reaching the recommended threshold point for fish farming. For fish cultivation activities from the results of this study only allows to cultivate the local fishes only.