A Planktonic Copepod Crustacean (IMAGE) University of Hawaii at Manoa Caption One suspect in the disappearance of cod and other groundfish is the food source for their young: a planktonic copepod crustacean, no larger than a grain of rice. Researchers at the University of Hawaii at Manoa are using a new molecular technique called transcriptomics to determine how copepods are responding to global climate change. Credit <a target="_blank"href="http://en.wikipedia.org/wiki/File:GulfofMaine2.jpg">Gulf of Maine -- Wikipedia</a>; <i>Calanus finmarchicus</i> -- Patrick Hassett, Ohio University Usage Restrictions <a target="_blank"href="http://commons.wikimedia.org/wiki/GNU_Free_Documentation_License">For academic and news use</a>. 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.