Born in 1967, Prof. Dr. Widanarni is a lecturer in Department of Aquaculture, Faculty of Fisheries and Marine Science, She has been studying and performing research in microbiology, probiotic, prebiotic, and synbiotic in Aquaculture since 1998, during which she has published some scientific papers in reputable national and international journals. Since May 2017, she has pointed as a Profesor in Fish Probiotic. She also interests in fish disease and another fish health research.