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Foraging dives of sperm whales in the north-western Mediterranean Sea

Published online by Cambridge University Press:  31 August 2012

Alexandre Gannier ,
Estelle Petiau ,
Violaine Dulau  and
Luke Rendell
Alexandre Gannier*
Affiliation:
Groupe de Recherche sur les Cétacés, BP 715, 06633 Antibes cedex, France
Estelle Petiau
Affiliation:
61 Le Mail, 60117 Vauciennes
Violaine Dulau
Affiliation:
GLOBICE, 30 chemin Parc Cabris, 97410 Saint Pierre, Réunion, France
Luke Rendell
Affiliation:
School of Biology, University of St Andrews, Bute Medical Building, St Andrews, Fife, KY16 9TS, UK
*
Correspondence should be addressed to: A. Gannier, Groupe de Recherche sur les Cétacés, BP 715, 06633 Antibes cedex, France email: [email protected]
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Abstract

Oceanic odontocetes rely on echolocation to forage on pelagic or benthic prey, but their feeding ecology is difficult to study. We studied sperm whale foraging dives during summer in the north-western Mediterranean, using visual and passive acoustic observations. Clicking and creaking activities were recorded during dives of focal whales, at distances <3000 m using a towed hydrophone and DAT recorder. A total of 52 sperm whales were recorded over at least one full dive cycle. Data were obtained for 156 complete dives in total, including sequences of up to nine consecutive dives. Various dive and environmental variables were entered in multiple linear regression and principal components analysis, as well as estimated mass of whales. Creak rate was 0.80 creak/minute on average, with moderate variance. Bigger whales tended to dive longer at greater depths (as suggested by ascent durations), and emitted more creaks during a dive: 20.2 creaks/dive on average for individuals <24 tons, compared to 25.6 creaks/dive for animals >24 tons of estimated mass. For individual whales, creak rates did not vary significantly with size (range 0.78–0.80 creak/minute), but decreased with time of the day, and increased for shorter foraging phases. For different dives, higher creak rates were also observed earlier in the day, and linked to shorter foraging phases and surface durations. Although the exact significance of creak emissions (i.e. foraging attempt or prey capture) is not precisely determined, creak rates may be reliably used to quantify sperm whale foraging when single animal dives can be followed acoustically.

Keywords

sperm whaleforagingcreakMediterraneanacoustics
Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 92 , Issue 8: Marine Mammals , December 2012 , pp. 1799 - 1808
Copyright
Copyright © Marine Biological Association of the United Kingdom 2012

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References

REFERENCES

Amano, M. and Yoshioka, M. (2003) Sperm whale diving behavior monitored using a suction-cup attached TDR tag. Marine Ecology Progress Series 258, 291–295.CrossRefGoogle Scholar
André, M., Johansson, T., Delory, E. and Van der Schaar, M. (2007) Foraging on squid: the sperm whale mid-range sonar. Journal of the Marine Biological Association of the United Kingdom 87, 59–67.CrossRefGoogle Scholar
Au, W.W.L. (1993). The sonar of dolphins. New York: Springer-Verlag.CrossRefGoogle Scholar
Drouot, V., Gannier, A. and Goold, J.C. (2004a) Summer social distribution of sperm whales (Physeter macrocephalus) in the Mediterranean Sea. Journal of the Marine Biological Association of the United Kingdom 84, 675–680.CrossRefGoogle Scholar
Drouot, V., Gannier, A. and Goold, J.C. (2004b) Diving and feeding behaviour of sperm whales (Physeter macrocephalus) in the Northwestern Mediterranean Sea. Aquatic Mammals 30, 419–426.CrossRefGoogle Scholar
Fristrup, K.M. and Harbison, G.R. (2002) How do sperm whales catch squids? Marine Mammal Science 18, 42–54.CrossRefGoogle Scholar
Gannier, A., Drouot, V. and Goold, J.C. (2002) Distribution and relative abundance of the sperm whale in the Mediterranean Sea. Marine Ecology Progress Series 243, 281–293.CrossRefGoogle Scholar
Gannier, A. and Praca, E. (2007) SST fronts and the summer sperm whale distribution in the north-west Mediterranean Sea. Journal of the Marine Biological Association of the United Kingdom 87, 187–193.CrossRefGoogle Scholar
Gordon, J.C.D. (1987) Sperm whale groups and social behaviour observed off Sri Lanka (SC/38/Sp7). Report of the International Whaling Commission 37, 205–217.Google Scholar
Gordon, J.C.D. (1991) Evaluation of a method for determining the length of sperm whale (Physeter catodon) from their vocalizations. Journal of Zoology (London) 224, 301–314.CrossRefGoogle Scholar
Jochens, A., Biggs, D., Benoit-Bird, K., Engelhaupt, D., Gordon, J., Hu, C., Jaquet, N., Johnson, M., Leben, R., Mate, B., Miller, P., Ortega-Ortiz, J., Thode, A., Tyack, P. and Würsig, B. (2008) Sperm whale seismic study in the Gulf of Mexico: synthesis report. US Department of the Interior, Minerals Management Service, Gulf of Mexico OCS Region, New Orleans, LA, OCS Study MMS 2008-006, 341 pp.Google Scholar
Kleiber, M. (1975) Metabolic turnover rate: a physiological meaning of the metabolic rate per unit body weight. Journal of Theoretical Biology 53, 199–204.CrossRefGoogle Scholar
Laran, S. and Drouot-Dulau, V. (2007) Seasonal variation of striped dolphins, fin- and sperm whales' abundance in the Ligurian Sea (Mediterranean Sea). Journal of the Marine Biological Association of the United Kingdom 87, 345–352.CrossRefGoogle Scholar
Lockyer, C. (1981) Estimates of growth and energy budget for the sperm whale. In Mammals in the seas, III. FAO Fishery Series No. 5. Rome: FAO, pp. 491–504.Google Scholar
Madsen, P.T., Wahlberg, M. and Møhl, B. (2002) Male sperm whale (Physeter macrocephalus) acoustics in high-latitude habitat: implications for echolocation and communication. Behavioral Ecology and Sociobiology 53, 31–41.Google Scholar
Madsen, P.T., Wilson, M., Johnson, M., Hanlon, R., Bocconcelli, A., Aguilar de Soto, N. and Tyack, P. (2007) Clicking for calamari: toothed whales can echolocate squid. Aquatic Biology 1, 141–151.CrossRefGoogle Scholar
Miller, P.J.O., Johnson, M.P. and Tyack, P.L. (2004a) Sperm whale behaviour indicates the use of echolocation clicks buzzes ‘creaks’ in prey capture. Proceedings of the Royal Society of London, Series B 271, 2239–2247.CrossRefGoogle ScholarPubMed
Miller, P.J.O., Johnson, M.P., Tyack, P.L. and Terray, E.A. (2004b) Swimming gaits, passive drag and buoyancy of diving sperm whales Physeter macrocephalus. Journal of Experimental Biology 207, 1953–1967.CrossRefGoogle ScholarPubMed
Mohl, B., Wahlberg, M. and Madsen, P. (2003) The monopulsed nature of sperm whale clicks. Journal of the Acoustical Society of America 114, 1143–1154.CrossRefGoogle ScholarPubMed
Rendell, L., Whitehead, H. and Escribano, R. (2004) Sperm whale habitat use and foraging success off northern Chile: evidence of ecological links between coastal and pelagic systems. Marine Ecology Progress Series 275, 289–295.CrossRefGoogle Scholar
Rice, D.W. (1989) Sperm whale Physeter macrocephalus Linnaeus 1758. In Ridgway, S.H. and Harrison, R. (eds) Handbook of marine mammals. Volume 4: river dolphins and the larger toothed whales. London: Academic Press, pp. 177–234.Google Scholar
Teloni, V. (2005) Patterns of sound production in diving sperm whales in the north-western Mediterranean. Marine Mammal Science 21, 446–457.CrossRefGoogle Scholar
Wahlberg, M. (2002) The acoustic behaviour of diving sperm whales observed with a hydrophone array. Journal of Experimental Marine Biology and Ecology 28, 53–62.CrossRefGoogle Scholar
Wahlberg, M., Frantzis, A., Alexiadou, V. and Møhl, B. (2005) Click production during breathing in a sperm whale (Physeter macrocephalus). Journal of the Acoustical Society of America 118, 3404–3407.CrossRefGoogle ScholarPubMed
Watwood, S., Miller, P., Johnson, M. and Madsen, P. (2006) Foraging behavior in deep-diving sperm whales. Journal of Animal Ecology 75, 814–825.CrossRefGoogle ScholarPubMed
Whitehead, H. and Rendell, L. (2004) Movements, habitat use and feeding success of cultural clans of South Pacific sperm whales. Journal of Animal Ecology 73, 190–196.CrossRefGoogle Scholar