Hydrothermal Vent in the Pescadero Basin (Gulf of California) (image) Monterey Bay Aquarium Research Institute Share Print E-Mail Caption Deep-sea hydrothermal vents in the Pescadero Basin emit scalding liquids that form light-colored carbonate spires. These vents have been colonized by the largest and densest colonies of Oasisia alvinae tubeworms ever observed. Credit © 2015 MBARI Usage Restrictions May only be published in conjuction with an article about this research. Share Print E-Mail 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.