The U.S. Navy said that a newly released scientific report demonstrates the viability of a new method to estimate received sound levels during real scenarios and analyzes movements of satellite-tagged individuals of three species of marine mammals exposed to Navy mid-frequency active sonar around Kauai's Pacific Missile Range Facility (PMRF). "This is exciting news in several ways, not least of which is the promise this new integrated approach holds for learning how sonar affects marine mammals," said Julie Rivers, natural and marine resources program manager for the U.S.