Ohio Natural History Conference 2019  Ohio's Aquatic Systems: Historical Tragedies and Tales of Recovery Saturday, February 23, 2019 Ohio History Center (614) 297-2300 800 E. 17th Ave. Columbus, Ohio 43211 United States Map and Directions The Ohio Biological Survey is pleased to announce Dr. Jeff Reutter as this year's Keynote Speaker! Dr. Reutter is an aquatic…