勇气,活动和攻击性:来自对波罗的海鱼 (Salmo salar L) 的大规模研究的见解
Johanna Axling1,2, Laura E Vossen3, Erik Peterson4
1Behavioural Neuroendocrinology, Department of Medical Cell Biology, Uppsala University, Uppsala, Sweden.
PloS one
|July 20, 2023
概括
通过镜像刺激 (MIS) 测试,可以识别农场中的侵略性大西洋鱼行为. 这种方法有助于预测侵略水平,与单独的露天实地测试不同,有助于鱼类福利和管理.
科学领域:
- 动物行为 动物行为
- 水产养殖科学 水产养殖科学
- 鱼类福利 鱼类福利
背景情况:
- 大西洋鱼水产养殖中的高侵略性导致翅损伤和压力,影响生长和福利.
- 识别侵略性个体对于改善鱼类管理和减少负面福利结果至关重要.
- 行为综合征表明,侵略可能与大胆和活跃等特征相关.
研究的目的:
- 开发一种高通量方法,用于量化和预测幼年波罗的海鱼的个人攻击性.
- 为了研究化场养的鱼的侵略性,活动性和大胆性之间的关系.
- 评估开放场 (OF) 和镜像刺激 (MIS) 试验对攻击性分析的有效性.
主要方法:
- 使用OF和MIS测试选了大约2000只年轻的鱼.
- 利用视频跟踪提取行为变量:活动,大胆和攻击性.
- 相关的行为变量,并分析了不同侵略群体的活动和大胆.
主要成果:
- 中等和低攻击性鱼类表现出更高的活动水平;高度攻击性鱼类显示出平均活动.
- 在侵略群体之间没有观察到大胆度的显著差异.
- 活动和大胆与积极相关,并检测出左眼偏好看镜子.
结论:
- 幼鱼的攻击性不能仅仅通过开放的野外测试来预测.
- 镜像刺激测试对于大规模的个人攻击性鱼分析有效.
- 这种方法可以帮助识别和管理水产养殖环境中的侵略性个体.
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