TROUBLED WATERS - Whale and Dolphin Conservation Society
TROUBLED WATERS - Whale and Dolphin Conservation Society
TROUBLED WATERS - Whale and Dolphin Conservation Society
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4<br />
A REVIEW REVIEW OF THE WELFARE IMPLICATIONS IMPLICATIONS OF MODERN WHALING WHALING ACTIVITIES<br />
The potential stress effects on whales of pursuit during whaling<br />
operations<br />
• Whaling operations can impose a degree of physical <strong>and</strong> psychological stress upon a pursued<br />
cetacean before any killing method is deployed. Such stress factors may be significant for cetaceans<br />
that are struck <strong>and</strong> eventually killed, but also for those that evade capture. From first sighting, the<br />
elements of the pursuit, such as the approach, duration, speed <strong>and</strong> distance covered, may affect<br />
morbidity <strong>and</strong> mortality, even amongst animals that successfully evade being struck.<br />
• The degree of exertion imposed on whales during pursuit may fall outside the species’ adaptive<br />
range. <strong>Whale</strong>rs depend on achieving a minimum distance between themselves <strong>and</strong> whales for<br />
successful harpooning. This range is likely to fall below the distance that would naturally be<br />
maintained by wild cetaceans. Pursuit, as part of whaling, therefore has the potential to induce<br />
stress, which may reveal itself in a series of lethal <strong>and</strong> sub-lethal pathologies.<br />
Weather, sea condition <strong>and</strong> ship motions affecting accuracy in whaling<br />
• The combination of visibility, sea state, ship motion <strong>and</strong> marksmanship are likely to impact<br />
significantly on the ability of a whaler to reliably kill a whale instantaneously. If weather, sea<br />
conditions or the motion of the vessel do not allow for a properly aimed shot, then there is a<br />
significant risk of a poorly placed harpoon or bullet causing an extended time to death <strong>and</strong><br />
associated suffering.<br />
Euthanasia of cetaceans<br />
• The meticulous nature of the methods developed for the euthanasia of str<strong>and</strong>ed cetaceans <strong>and</strong><br />
the conditions under which these methods are applied, contrast significantly with the often<br />
inferior circumstances <strong>and</strong> subst<strong>and</strong>ard methods used during whaling operations. <strong>Whale</strong>rs<br />
attempting a fatal shot with a harpoon or a rifle, often from a considerable range, need to overcome<br />
a number of significant factors that hinder accuracy. The significance of these variables <strong>and</strong> the<br />
inadequacies of the methods used are reflected in the poor instantaneous death rates <strong>and</strong> average<br />
times to death during all whaling operations.<br />
Other welfare considerations<br />
• The complex social behaviour of cetaceans may mean that the killing of one cetacean from a<br />
social group may have a significant effect on others. This is especially likely if the strong maternal<br />
bond between mother <strong>and</strong> calf is broken. There is also growing evidence of culture in some<br />
cetacean species. Therefore, consideration should be given to the impact of whaling operations on<br />
the welfare of remaining individuals in the social groups.<br />
Comparison with the commercial slaughter of other species<br />
• Basic principles that must be addressed to protect the welfare of animals at slaughter have been<br />
identified for livestock animals. These principles, the determinants of high welfare slaughter<br />
methodology, are:<br />
pre-slaughter h<strong>and</strong>ling facilities which minimise stress;<br />
use of competent well-trained, caring personnel;<br />
appropriate equipment, which is fit for the purpose;<br />
an effective process which induces immediate unconsciousness <strong>and</strong> insensibility, or an<br />
induction to a period of unconsciousness without distress; <strong>and</strong>,<br />
guarantee of non-recovery from that process until death ensues.