Recording Device at Black Smoker (IMAGE) University of Washington Caption The recording device that captured the sounds of black smoker venting sits here between waters that are 660 F, hot enough to poach unsuspecting fish, and cooler places lush with tube worms. It is speculated that the sound generated by hydrothermal vents may help fish navigate around such structures. Credit University of Washington Usage Restrictions None 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.