Algae for Biofuel (IMAGE) University of Michigan Caption These are samples collected from large tanks containing mixes of various freshwater algal species. The green samples are healthy, while the yellow samples were contaminated by a fungal disease. The biofuels experiment was conducted in the summer of 2016 at U-M's E.S. George Reserve near Pinckney, Mich Credit Daryl Marshke/Michigan Photograp 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.