Penggunaan Biomonitor Multispesies Air Tawar dalam Menilai Perubahan Kelakuan Ikan Gapi, Poecilia reticulata dan Udang Air Tawar, Macrobrachium lanchesteri Terhadap Air Larut Resap dari Tapak Pelupusan Sampah

The Multispecies Freshwater Biomonitor (MFB™) was used to measure and analyse different types of behaviours from different aquatic organisms for monitoring water quality in freshwater ecosystems. The signal response of freshwater shrimp (Macrobrachium lanchesteri) and guppy fish (Poecilia reticulata) was studied in the laboratory to determine the specific response of both organisms to different concentrations of leachate (1%, 3% and 5%). Behavioural changes were recorded by using Multispecies Freshwater Biomonitor (MFB) for 24 h. Our results showed that the behavioural and ventilation responses of freshwater shrimp increased with increasing exposure to concentrations of leachate. However, the responses shown by guppy fish was not clear although there was a trend of reduction in the behavioural responses with increasing exposure and increasing ventilation responses with increasing exposure to leachate. Results also showed that the M. lanchesteri was more sensitive to leachate than P. reticulata and this organism was more suitable as indicator organism for the MFB.