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在海射击中,射击角度的重要性

Kathrine A Ryeng¹, Stig E Larsen²

¹Institute of Marine Research, Fram Centre, PO Box 6606, Stakkevollan, NO-9296 Tromso, Norway.

Animal welfare (South Mimms, England)

|March 15, 2024

概括

年轻的海狩猎的最佳射击角度是从前方斜向的,显著增加瞬间死亡率 (IDR),以改善动物福利结果.

科学领域:

海洋哺乳动物科学科学
野生动物管理野生动物管理
动物福利研究动物福利研究

背景情况:

在某些地区,狩猎幼海 (Pagophilus groenlandicus) 是一个重要的活动.
了解影响狩猎期间动物福利的因素对于伦理实践至关重要.
以前的研究还没有全面评估射击角度对海死亡率的影响.

研究的目的:

为了研究头部射击角度和年轻海的动物福利结果之间的关系.
为了确定最佳的拍摄角度,最大限度地提高瞬间死亡率 (IDR) 并最大限度地减少死亡时间 (TTD).

主要方法:

一项随机试验,涉及格陵兰海种群中的171只年轻海 (2-7周大).
密封件根据相对于头部的射击角度 (正面,斜面,侧面,后面) 分为四组 (A-D).
即时死亡率 (IDR) 和死亡时间 (TTD) 被测量为主要福利指标.

主要成果:

平均IDR在不同组之间有显著的差异,在斜前部组观察到的最高率 (96.8%) 和侧面组观察到的最低率 (66.7%).
没有立即死亡的海的平均TTD在前组 (16秒) 最短,在侧组 (85秒) 最长,尽管这项分析的样本规模有限.
所有组的整体IDR为84.2%.

结论:

射击角度直接影响年轻海狩猎的动物福利结果.
建议采用斜的前射角度,以达到最高的瞬间死亡率,从而改善动物福利.
对TTD分析进行更大样本大小的进一步研究是有必要的.

关键词:

动物福利动物福利哈普海是海的海之一.即时死亡率即时死亡率.步枪狩猎步枪狩猎步枪狩猎射击角度射击角度射击角度死亡的时间到死亡.

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