Animal Sonar Systems pp 291-297

Part of the NATO Advanced Study Institutes Series book series (volume 28)

Click Sounds from Animals at Sea

  • William A. Watkins

Abstract

Echolocation signals from passing cetaceans (Deliphinidae, Phocoenidae, etc.) at sea generally exhibit somewhat different characteristics from those of the same species in captivity that are involved in discrimination experiments in echolocation. Presumably, these differences are partly because the echolocation task at sea would have been primarily for orientation (as suggested by Norris, Evans, and Turner 1967; Norris 1969). Generally, the clicks from groups of cetaceans passing within a few meters of a hydrophone at sea are (1) relatively low frequency (rarely energy above 50 kHz from any species), (2) mostly low level, and (3) often at slow, variable repetition rates. Under these circumstances, the clicks may be used primarily in social contexts.

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References

  1. Au, W. W. L., Floyd, R. W., and Haun, J. E., 1978, Propagation of Atlantic bottlenose dolphin echolocation signais, J. Acoust. Soc. Am., 64:411.CrossRefGoogle Scholar
  2. Busnel, R. G., Dziedzic, A., and Andersen, S., 1963, Acoustique physiologie — sur certaines caracteristiques des signaux acoustiques du marsouin Phocoena phocoena, L. C. R. Acad. Se. Paris, 257:2545.Google Scholar
  3. Busnel, R. G., Dziedzic, A., 1966, Acoustic signals of the pilot whale Globicephala melaena and of the porpoise Delphinus delphis and Phocoena phocoena, in: “Whales, Dolphins, and Porpoises”, K. S. Norris, ed., Univ. California Press, Berkeley.Google Scholar
  4. Dubrovskiy, N. A., Krasnov, P. S., and Titov, A. A., 1971, On the emission of echolocation signals by the Azov sea harbor porpoise, Akust. Zh., 16:521;Google Scholar
  5. Dubrovskiy, N. A., Krasnov, P. S., and Titov, A. A., 1971, On the emission of echolocation signals by the Azov sea harbor porpoise, Sov. Phys. Acoust., 16:444.Google Scholar
  6. Evans, W. E., 1973, Echolocation by marine delphinids and one species of fresh-water dolphin, J. Acoust. Soc. Am., 54:191.CrossRefGoogle Scholar
  7. Ford, J. K. B., and Fisher, H. D., 1978, Underwater acoustic signals of the narwhal (Monodon monoceros), Can. J. Zool., 56:552.CrossRefGoogle Scholar
  8. Hall, J. D., and Johnson, C. S., 1972, Auditory thresholds of a killer whale Orcinus orca Linnaeus, J. Acoust. Soc. Am., 51: 515.CrossRefGoogle Scholar
  9. Møhl, B., and Andersen, S., 1973, Echolocation: high-frequency component in the click of the harbour porpoise Phocoena ph. L., J. Acoust. Soc. Am., 54:1368.PubMedCrossRefGoogle Scholar
  10. Norris, K. S., Prescott, J. H., Asa-Dorian, P. V., and Perkin, P., 1961, Experimental demonstration of echolocation behavior in the porpoise Tursiops truncatus (Montagu), Biol. Bull., 120: 163.CrossRefGoogle Scholar
  11. Norris, K. S., and Evans, W. E., 1966, Directionality of echolocation clicks in the rough-tooth porpoise, Steno bredanensis, (Lesson), in: “Marine Bioacoustics”, W. N. Tavolga, ed., Pergamon Press, New York.Google Scholar
  12. Norris, K. S., Evans, W. E., and Turner, R. N., 1967, Echolocation in an Atlantic bottlenose porpoise during discrimination, in:“Proc. Symp. Animal Sonar Systems: Biology and Bionics,” R. G. Busnel, ed., Laboratoire de Physiologie Acoustique, Jouyen-Josas, France.Google Scholar
  13. Norris, K. S., 1969, The echolocation of marine mammals, in: “The Biology of Marine Mammals”, H. T. Anderson, ed., Academic Press.Google Scholar
  14. Ridgway, S. H., 1966, Dall porpoise, Phocoenoides dalli (True): observations in captivity and at sea, Norsk Hvalfangst-Tidende, 5:97Google Scholar
  15. Schevill, W. E., and Watkins, W. A., 1966, Sound structure and directionality in Orcinus (Killer Whale), Zoologica, 51:71.Google Scholar
  16. Schevill, W. E., and Watkins, W. A., 1971, Pulsed sounds of the porpoise Lagenorhynchue australis, Breviora, 366.Google Scholar
  17. Schevill, W. E., Watkins, W. E., and Ray, C., 1969, Click structure in the porpoise, Phocoena phocoena, J. Mamm., 50:721.CrossRefGoogle Scholar
  18. Watkins, W. A., Schevill, W. E., and Ray, C., 1971, Underwater sounds of Monodon (narwhal), J. Acoust. Soc. Am., 49:595.CrossRefGoogle Scholar
  19. Watkins, W. A., and Schevill, W. E., 1972, Sound source location by arrival-times on a nonrigid three-dimensional hydrophone array, Deep-Sea Research, 19:691.Google Scholar
  20. Watkins, W. A., 1974, Bandwidth limitations and analysis of cetacean sounds, with comments on delphinid sonar measurements and analysis, (K. J. Diercks, R. T., Trochta, and W. E. Evans, J. Acoust. Soc. Am., 54:200 (1973)). J. Acoust. Soc. Am., 55:849.PubMedCrossRefGoogle Scholar
  21. Watkins, W. A., and Schevill, W. E., 1974, Listening to Hawaiian spinner porpoises, Stenella cf. longirostris, with a three-dimensional hydrophone array, J. Mamm., 55:319.CrossRefGoogle Scholar
  22. Watkins, W. A., Schevill, W.E., and Best, P. B., 1977, Underwater sounds of Cephalorhynchus heavisidii (Mammalia: Cetacea), J. Mamm., 58:316.CrossRefGoogle Scholar

Copyright information

© Plenum Press, New York 1980

Authors and Affiliations

  • William A. Watkins
    • 1
  1. 1.Woods Hole Oceanographic InstitutionWoods HoleMassachusettsUSA

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