Dr. David Lodge, University of Notre Dame (IMAGE) NOAA Headquarters Caption Dr. David Lodge, the project's Principal Investigator, collects a water sample of the Chicago River to test for the presence of DNA from the Asian Carp, an invasive species threatening the Great Lakes. Credit NOAA Usage Restrictions None 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.