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The Capacities of water jasmine (Echinodorus palaefolius) as phytoremediator to Reduce Nitrogen and Phosphate Waste of Eel (Angullia bicolor bicolor) intensive Culture in Recirculation aquaculture Systems (RAS)
Hany Handajani1, Widanarni2, Tatag Budiardi2, Mia Setiawati2

1 Department of Fisheries, Faculty of Agriculture and Animal Science, University of Muhammadiyah Malang, Malang 65144, Indonesia. 2 Department of Aquaculture, Faculty of Fisheries and Marine Science, Bogor Agricultural University, Bogor 16680, Indonesia.


Abstract

Abstract The study aimed to evaluate the administration of water jasmine plants through increasing the capacity of plants as phytoremediators in reducing the waste of intensive culture eel. This study used a completely randomized design with three treatments of water jasmine plant density and repeated 3 times, as treatments were 1.04 g/L (Ep1), 2.08 g/L (Ep2), and 3.13 g/L (Ep3). The initial average eel weight was 8.3 g, with a stocking density of 4 g/L. Culture of eel is carried out in a 50 cm diameter tub and 55 cm high with a recirculation system with water jasmine plants as phytoremediators. Jasmine water is planted in an aquarium measuring 60 cm x 40 cm x 40 cm with a volume of 48 L. A feed paste contain 45.15% protein as much as 4% weight of eel biomass, was given 3 times a day. Culture is carried out for 60 days. The results showed a significant difference in the effect of water jasmine density on nutrient removal efficiency, also performances on the growth of eel and plant. Plants of E. palaefolius (water jasmine) with a density of 2.08 g/L had the highest TAN efficiency removal nutrients, nitrite, nitrate and phosphate compared to density of 1.04 g/L and 3.13 g/L. Nutrient removal efficiency at a density of 2.08 g/L, id est TAN 46.03%; nitrite 49.65%; nitrate 59.62% and phosphate 60.88%, respectively. At a jasmine density of 2.08 g/L produced the highest specific growth rate of eel 0.99% the lowest feed conversion 1.97, and the highest increasing of water jasmine biomass (262.33 g with a daily growth of 4.37 g/day). Thus, it can be concluded that the density of water jasmine 2.08 g/L produces the best nutrient removal efficiency, the growth performance of eel and plant.

Keywords: Keywords: phytoremediation, water jasmine, waste water eel culture

Topic: International Conference on Sustainable Agriculture

Link: https://ifory.id/abstract/MkFTDrnXZdAE

Conference: The 3rd International Conference on Sustainability and Innovation (ICoSI 2019)

Plain Format | Corresponding Author (Hany Handajani)

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