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Marine Resources Assessment for the Marianas Operating ... - SPREP

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AUGUST 2005 FINAL REPORT<br />

147 to 334 Hz <strong>for</strong> adult males (Le Bouef and Petrinovich 1974). The mean source level of <strong>the</strong> maleproduced<br />

vocalizations during <strong>the</strong> breeding season is 110 dB (Sanvito and Galimberti 2003). In-air<br />

calls made by aggressive males include: (1) snoring, which is a low-intensity threat; (2) a snort (0.2 to<br />

0.6 kHz) made by a dominant male when approached by a subdominant male; and (3) a clap threat<br />

(

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