Killifish (IMAGE) University of Cincinnati Caption UC biology student Ariana Berrios scoops up a least killifish. UC assistant professor Latonya Jackson is studying the effects of hormones discharged from sewage treatment plants that get into streams and public drinking water. Credit Andrew Higley/UC Creative 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.