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Minke whale hunt and animal welfare

Published online by Cambridge University Press:  11 January 2023

SK Knudsen*
Affiliation:
The Animal Department, Faculty of Medicine, University of Tromsø, NO-9037 Tromsø, Norway Section of Arctic Veterinary Medicine, Department of Food Safety and Infection Biology, Norwegian School of Veterinary Science, PO Box 6204, NO-9292 Tromsø, Norway
EO Øen
Affiliation:
The Animal Department, Faculty of Medicine, University of Tromsø, NO-9037 Tromsø, Norway
L Walløe
Affiliation:
Department of Physiology, University of Oslo, PO Box 1103 Blindern, 0317 Oslo, Norway
*
* Contact for correspondence and requests for reprints: [email protected]
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Over the last twenty-five years, Norway has given priority to research to improve hunting methods for Minke whales. This has resulted in an increase in the instantaneous death rate (IDR) from about 17% in the early 1980s to about 80% today, and, thus, in a considerable decrease in the time to death (TTD) (Øen 2003). TTD data have been collected by official veterinary inspectors on board Norwegian whaling vessels and reported annually to the International Whaling Commission (IWC) since 1983. Estimates of TTD have been based, predominantly, on the ‘criteria of death in whales’ that were established at an IWC workshop in 1980 (IWC 1980). These criteria in principle require complete immobility, ie a whale can only be pronounced dead if it has stopped moving, the jaw and flippers have slackened, and it is sinking passively. However, as early as 1995 the IWC agreed (IWC 1995) that the criteria were incomplete and sometimes misleading, as they did not allow for reflex movements and seizures that occur in the unconscious state after an animal is stunned. This phenomenon is well-known from the slaughter of domestic animals (for review, see eg Knudsen 2005). The IWC identified a need for a more reliable method of determining the time of onset of permanent insensibility in whales (IWC 1995) and in particular asked for research investigating in detail the trauma, and its consequences, caused by hunting methods.

Type
Letters
Copyright
© 2007 Universities Federation for Animal Welfare

References

IWC 1980 Report of the Workshop on Humane Killing Techniques for Whales. Report of the International Whaling Commission IWC/32/15. 10-14 November 1980. Cambridge, UKGoogle Scholar
IWC 1995 Report of the Workshop on Whale Killing Methods. Report of the International Whaling Commission IWC/47/18. 23-25 June 1995, Dublin, IrelandGoogle Scholar
IWC 2003 Report of the Workshop on Whale Killing Methods and Associated Welfare Issues, Report of the International Whaling Commission IWC/55/Rep. 5. 7-9 June 2003, Berlin, GermanyGoogle Scholar
Knowles, TG and Butterworth, A 2006 Immediate immobilisation of a Minke whale using a grenade harpoon requires striking a restricted target area. Animal Welfare 15: 5557CrossRefGoogle Scholar
Knudsen, SK, Mørk, S and Øen, EO 2002 A novel method for in situ fixation of whale brains. Journal of Neuroscience Methods 120: 3544CrossRefGoogle ScholarPubMed
Knudsen, SK and Øen, EO 2003 Blast-induced neurotrauma in whales. Neuroscience Research 46: 377386CrossRefGoogle ScholarPubMed
Knudsen, SK 2004 Assessment of insensibility and death in whales. PhD Thesis, The Norwegian School of Veterinary Science, Tromsø, NorwayGoogle Scholar
Knudsen, SK 2005 A review of the criteria used to assess insensibility and death in hunted whales compared to other species. The Veterinary Journal 169: 4259CrossRefGoogle ScholarPubMed
Øen, EO 2003 Improvements in hunting and killing methods for minke whales in Norway 1981-2003. In: Proceedings of the International Whaling Commission Report International Whaling Commission IWC/55/WKM&AWI 17Google Scholar