Open AccessThe Effectiveness of Three Biofilter Media on Total Ammonia Nitrogen (TAN) Removal and Survival Rate of Tilapia Gift Seeds (Oreochromis niloticus) in Recirculation Aquaculture System
Author(s) -
Mira Andhika Pierrenia,
Sri Rejeki,
Dicky Harwanto
Publication year - 2021
Publication title -
omni-akuatika
Language(s) - English
Resource type - Journals
eISSN - 2476-9347
pISSN - 1858-3873
DOI - 10.20884/1.oa.2021.17.2.899
Subject(s) - biofilter , tilapia , recirculating aquaculture system , oreochromis , aquaculture , zoology , expanded polystyrene , biology , fish <actinopterygii> , pulp and paper industry , chemistry , fishery , environmental science , environmental engineering , materials science , composite material , engineering
Efforts to increase tilapia production are carried out through intensive culture by taking into account various aspects that support fish survival. The culture system that supports intensive culture is the Recirculation Aquaculture System (RAS). The RAS technology has the ability to support aquaculture with very high density and high yields compared to open culture systems. This study aims to determine the effect of different biofilter media in RAS on decreasing TAN concentration and growth of tilapia seeds. The method used was experimental with three treatments and four replications. Tilapia with an average individual weight of 3.40 ± 0.15 g were maintained in RAS with three different biofilter media treatments, sand (A), polystyrene microbeads (B) and kaldnes (C). The parameters observed were pH, DO, temperature, TAN removal efficiency, specific growth rate (SGR) and survival rate (SR). The results showed that different biofilter media had a significant effect (P 0.05) on the SGR and SR values. The sand biofilter treatment (A) gave the best TAN removal efficiency of 36.61±4.82%.Key words: Kaldnes, Polystyrene, Sand, TAN, Tilapia