Measuring body length of male sperm whales from their clicks: the relationship between inter-pulse intervals and photogrammetrically measured lengths.

@article{Growcott2011MeasuringBL,
  title={Measuring body length of male sperm whales from their clicks: the relationship between inter-pulse intervals and photogrammetrically measured lengths.},
  author={Abraham Growcott and Brian S. Miller and Pascal Sirguey and Elisabeth Slooten and Stephen M. Dawson},
  journal={The Journal of the Acoustical Society of America},
  year={2011},
  volume={130 1},
  pages={568-73}
}
Sperm whales (Physeter macrocephalus) emit short, broadband clicks which often include multiple pulses. The time interval between these pulses [inter-pulse interval (IPI)] represents the two-way time for a pulse to travel between the air sacs located at either end of the sperm whale's head. The IPI therefore, is a proxy of head length which, using an allometric relationship, can be used to estimate total body length. Previous studies relating IPI to an independent measure of length have relied… CONTINUE READING
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