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Can Antarctic sea-ice extent be determined from whaling records?

Published online by Cambridge University Press:  27 October 2009

Stephen Vaughan
Stephen Vaughan
Affiliation:
Scott Polar Research Institute, University of Cambridge, Lensfield Road, Cambridge CB2 1ER
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Summery

The subject of retreating global sea-ice extent is a matter of grave concern, and any new method that promises reliable information about past ice-extent parameters must be welcomed. However, the method proposed by De la Mare should be viewed with caution for four reasons. First, his predictions of sea-ice extent do not correspond with known observations of sea-ice extent from research published in 1936 and 1972. Second, his predictions correlate much more closely with the whale-sighting data recorded by Hansen (1936). Third, since Hansen's sea-ice extent data do not correspond closely with his whalesighting data, it must be questioned whether whale-based data should be used for retrospective predictions relating to sea-ice extent. And finally, information from the IWC indicates that De la Mare's datasets are not considered accurate. Predicting sea-ice edge extent is complex, and, it would seem, a purely biological approach is not necessarily the most accurate method to adopt.

Type
Notes
Information
Polar Record , Volume 36 , Issue 199 , October 2000 , pp. 345 - 347
Copyright
Copyright © Cambridge University Press 2000

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References

Arrigo, K.R., Worthen, D.L., Dixon, P., and Lizotte, M.P.. 1998. Primary productivity of near-surface communities within Antarctic pack ice. In: Lizotte, M.P., and Arrigo, K.R. (editors). Antarctic sea ice: biological processes, interactions and variability. Washington, DC: American Geophysical Union: 23–43.Google Scholar
Butterworth, D.S., and Buckland, S.T.. 1988. Revised estimates of takeable minke abundance from the 1978/79 and 1984/85 IDCR sightings cruises. Report of the International Whaling Commission 38: 86.Google Scholar
De la Mare, W.K. 1997. Abrupt mid-twentieth-century decline in Antarctic Sea-iceextent from whaling records. Nature 389: 57–60.CrossRefGoogle Scholar
Hansen, H.E. 1936. Atlus over Antarktisog og Synishavet. Sandefjord: Hvalfangernes Assuranceforening.Google Scholar
Headland, R.K. 2000. Chronological list of Antarctic expeditions and related historical events. Unpublished revision. Cambridge: Scott Polar Research Institute, University of Cambridge.Google Scholar
Hjort, J., Lie, J., and Rudd, J.T.. 1933. Norwegian pelagic whaling in the Antarctic III. Hvalradets Skrifter: 8 4–36.Google Scholar
Horwood, J. 1990. Biology and exploitation of the minke whale. Boca Raton, FL: CRC Press.Google Scholar
Mackintosh, N.A., and Herdman, H.F.P.. 1972. Sea ice limits. Discovery Reports 36: 12.Google Scholar