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The geological history of Bermuda coupled with biological evidence indicates a strong possibility for the presence of "deepwater caves" near the island. [ deepwater, meaning cave entrances under more than 150 feet of water ] In order to gain further insight into the origin, evolution and distribution of life in submarine caves, it is necessary to first discover these deep water caves, and then investigate their nature and the possible relationships between shallow water cave fauna and (as yet undiscovered) animals from deep water caves. Through a three-step approach, a series of expeditions will explore the seas surrounding Bermuda to search for deep water caves. First, multi-beam sonar will be used to survey the area and create a high-resolution map of the sea floor. Investigators will look for cave entrances directly, as well as indirect indicators of the cave presence (schools of fish, plumes of “shimmering water”). The second step will involve a remotely operated vehicle (ROV) to investigate sites identified by the multi-beam. Finally, divers using mixed gas rebreathers will locate and investigate deep water caves. The specific goals of this exploration are to characterize the natural history of the Bermuda platform, discover deep water cave habitats, determine the origin and age of such caves, and observe and collect deep water cave fauna for comparison with species inhabiting Bermuda's shallow caves. Ref: http://oceanexplorer.noaa.gov/explorations/09bermuda/welcome.html --------------------------------------------------------------------- Visit our website: http://texascavers.com To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
