Kaustubh Thirumalai on Scientific Cruise (IMAGE) University of Texas at Austin Caption Kaustubh Thirumalai (Brown University) helping retrieve a CTD instrument, which collects water samples and measures physical parameters of oceanic waters such as temperature, aboard the R/V Point Sur in the northern Gulf of Mexico. Credit Caitlin Reynolds (USGS) Usage Restrictions Credit photo 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.