Hydrocarbon seep in the Gulf of Mexico (IMAGE) Marine Biological Laboratory Caption Hydrocarbon seep in the southern Gulf of Mexico emitting a viscous petroleum, much like asphalt. Hydrocarbons serve as an energy source for microbes and in turn, microbial biomass is a food source for a diverse community of organisms including tube worms, mussels, crabs and shrimp. Credit Center for Marine Environmental Sciences (MARUM), University of Bremen Usage Restrictions Please use with proper credit 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.