Rate My Professor Ivan Arismendi

Ivan Arismendi is an Associate Professor of Freshwater Ecology and Conservation in the Department of Fisheries, Wildlife, and Conservation Sciences at Oregon State University in the College of Agricultural Sciences. Hailing from southern Chile, he earned a B.S. in Fisheries Engineering with Maximum Distinction and a Professional Diploma in Fisheries Engineering in 1997 from Universidad Austral in Puerto Montt, Chile, and a Doctorate in Forest Sciences in 2010 from Universidad Austral in Valdivia, Chile. From 2010 to 2012, he served as a Post-Doctoral Scholar in the College of Earth, Ocean, and Atmospheric Sciences at Oregon State University. Since September 2016, he has held a faculty position in the Department of Fisheries and Wildlife, now known as Fisheries, Wildlife, and Conservation Sciences, where he has advanced to Associate Professor.

Arismendi's research centers on quantitative aquatic ecology, exploring freshwater-terrestrial links, impacts of biological invasions on aquatic and riparian ecosystems, consequences of climate change on freshwater ecosystems, stream ecology, limnology, hydrology, forestry, and watershed-level processes, as well as diversity and inclusion in science. He teaches FW 456/556 Freshwater Ecology and Conservation and FW 421/521 Aquatic Biological Invasions. His prolific scholarship includes recent publications such as "Ecological niche models as tools for freshwater fish conservation in a changing world" (Fisheries, 2026), "Environment, taxonomy, and socioeconomics predict non-imperilment in freshwater fishes" (Nature Communications, 2026), "Unmarked escapees undermine policy and public trust in Chilean salmon aquaculture" (Reviews in Aquaculture, 2026), "Forest age influences freshwater biodiversity in temperate watersheds" (Biological Conservation, 2026), and "Shrinking sizes of trout and salamanders are unexplained by climate warming alone" (2024). With over 5,000 citations, his work significantly impacts freshwater conservation and climate adaptation strategies. Arismendi serves on the Advisory Board of Limnologica (Elsevier) and has received the Savery Outstanding Young Faculty Award from the College of Agricultural Sciences, the Family Friendly Faculty Award, and the Student Learning and Success Teamwork Award from Oregon State University.