Toxicity of Leaves, Stems, and Roots of Linostoma Pauciflorum on the Mortality Rate of Oreochromis Niloticus and Water Quality in Glass Aquarium

Abstract

The objectives of this research were to study the mortality rate of tilapia (Oreochromis niloticus) and water quality in glass aquariums using extracts from leaves, stems, and roots of Linostoma pauciflorum. There were 4-control set treatments, i.e. no Linostorna pauciflorum, with leaves, with stems, and with roots at a concentration of 6 mg/l. The experiment was conducted in the glass aquarium containing 14 liters of water. Each glass aquarium contained 10 fish with the length between 5 and 7.5 cm. In the experiment, it was found that at the period of 6 hours, the root of Linostoma. pauciflorum had the highest cumulative mortality rate with an average of 100%. Leaves and stems had the highest mortality rate of tilapia at 24 hours with an average of 23.33 and 43.33% respectively while in the experimental set without Linostoma pauciflorum, no dead tilapia was found throughout the experimental period. The water quality in the glass aquarium was at the average dissolved oxygen in the range of 7.19-7.28 mg/l with the average water temperature in the range of 27.50-28.90 degrees Celsius and the average pH in the range of 7.35-7.61.