Skip to main content
  • Published:

Simulations of the Effect of Currently Used Grenade Harpoons for the Killing of Whales Using a Pig-Model

Simuleringer av effekten av granatharpuner for avlivning av hval ved bruk av en grise-modell

Abstract

Physical model experiments, as well as simulations of the effects of grenade harpooning on anaesthetized pigs fully immersed in water suggest that the shock effect of the blast from the currently used grenades is relatively minor. Also the animals are not stunned to death, but loose consciousness and subsequently die from hemorrhage. Survival time is therefore very short if the animals are hit in the thorax, and is likely to be further reduced if the charge which is currently used is increased, or, even better, if shrapnel (fragment scattering) grenades are used instead of blast grenades.

Sammanfattning

Fysiske modelleksperimenter og simulering av effekten av granatharpuner i anesteserte griser, som var helt nedsenket i vann, indikerer at sjokkeffekten av eksplosjonen fra de for tiden brukte granatene er relativt liten, og det er lite som tyder på at dyrene vanligvis dør av eksplosjonssjokket. Det er derimot trolig at dyrene mister bevisstheten og derefter dør som følge av blodtab. Overlevelsestiden er derfor svært kort hvis dyrene blir truffet i brystet, og vil sannsynligvis bli ytterligere redusert hvis ladningen i granaten økes, eller ennu bedre, om man tar i bruk splintgranater isteden for de nu brukte sjokkgranater.

References

  • Adams JH, Graham DI, Gennarelli TA, Maxwell WL: Diffuse axonal injury in non-missile head injury. J. Neurol. Neurosurg. Psychiat. 1991, 54, 481–483.

    Article  CAS  Google Scholar 

  • Blix AS, Folkow B: Cardiovascular adjustments to diving in mammals and birds. In: Shepard JT, Abboud FM (eds.): Handbook of Physiology. The Cardiovascular System. Vol. III(2). Am. Physiol. Soc., Bethesda, USA, 1983, pp 917–945.

    Google Scholar 

  • Folkow LP, Blix AS: Metabolic rates of minke whales in cold water. Acta Physiol. Scand. 1992, 146, 141–150.

    Article  CAS  Google Scholar 

  • Sharpnack DD, Johnson AJ, Phillips YY: The pathology of primary blast injury. In: Bellamy RF, Zajtchuk R (eds.): Textbook of Military Medicine, Part I, vol.5. Office of the Surgeon General, US Army, Washington DC, pp. 271–294.

  • Stahl WR: Scaling of respiration variables in mammals. J. Appl. Physiol. 1967, 22, 453–460.

    Article  CAS  Google Scholar 

  • Øen EO: Effectiveness of a new penthrite grenade for the Alaskan eskimo hunt for bowhead whales compared with the traditional black powder grenade. Arctic 1995a, 48, 177–185.

    Article  Google Scholar 

  • Øen EO: A Norwegian penthrite grenade for minke whales : Hunting trials with prototypes and results from the hunt in 1984, 1985 and 1986. Acta Vet. Scand., 1995b, 36, 111–121.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to A. S. Blix.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Blix, A.S., Folkow, L.P. & Sørlie, D.G. Simulations of the Effect of Currently Used Grenade Harpoons for the Killing of Whales Using a Pig-Model. Acta Vet Scand 41, 237–242 (2000). https://doi.org/10.1186/BF03549632

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1186/BF03549632

Keywords