Jellyfish Abundance in the World's Oceans (IMAGE) University of British Columbia Caption This is a map of population trends of native and invasive species of jellyfish by LME. Red: increase (high certainty); orange: increase (low certainty); green stable/variable; blue decrease, gray: no data. Circles represent jellyfish populations with relative sizes reflecting confidence in the data. Credit Brotz et al, <i>Hydrobiologia</i> Usage Restrictions Use permitted with coverage of study, pls credit source as noted. 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.