| an acoustic survey of beaked whales at cross seamount near hawaii. | an acoustic record from cross seamount, southwest of hawaii, revealed sounds characteristic of beaked whale echolocation at the same relative abundance year-around (270 of 356 days), occurring almost entirely at night. the most common sound had a linear frequency upsweep from 35 to 100 khz (the bandwidth of recording), an interpulse interval of 0.11 s, and duration of at least 932 mus. a less common upsweep sound with shorter interpulse interval and slower sweep rate was also present. sounds mat ... | 2009 | 19206838 |