I am a lecturer in the biology  program, Udayana University. Currently I am focusing on studying and researching about invertebrates, bioindicators, and environmental pollution. During my undergraduate studies, I did research on leeches (Hirudo medicinalis). Then, during my master's degree, I did research on water strider (Gerris marginatus). Hopefully the results of my research are useful for a sustainable life. If colleagues want to carry out collaborative research, they are welcome. Thank you