Douglas Rodríguez Olarte is a full Professor of Ecology at the Department of Biology, Agronomy Faculty, Universidad Centro Occidental Lisandro Alvarado. He received his Ph.D. from the University Complutense of Madrid, Spain. His research interests include biogeography, integrity, biomonitoring and conservation of freshwater fishes and rivers, and fish and aquatic ecology. Olarte has published 35 paper in international journals and authored one book, edited another, and has contributed to 25 book chapters.