Donald Orth, Virginia Tech (IMAGE) Virginia Tech Caption Virginia Tech professor Donald Orth reviewed both historical events and progress in the development of policies to protect in-stream flows in the US in his keynote address at the meeting of the Southeastern Fishes Council. Credit Virginia Tech Photo Usage Restrictions Photo maybe used when reporting or discussing Donald Orth work. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.