从它们在漂浮物体周围的关联行为中直接评估热带金枪鱼的丰度
Yannick Baidai1, Amaël Dupaix2, Laurent Dagorn2
1African Marine Expertises , Abidjan 04 BP 2991, Côte d'Ivoire.
Proceedings. Biological sciences
|August 20, 2024
概括
准确评估野生海洋物种的丰富性是一项挑战. 一个新的以协会行为为基础的丰富度指数 (ABBI) 提供了热带金枪鱼的直接估计,可能有助于改善库存评估.
科学领域:
- 海洋生物学 海洋生物学
- 渔业 科学 渔业 科学
- 保护生物学 保护生物学
背景情况:
- 准确的丰度评估对于管理野生捕捞物种至关重要.
- 海洋物种的传统方法通常依赖于间接的,基于收获的指数,在努力标准化方面存在局限.
- 热带金枪鱼被大量利用,需要使用替代的丰度估计方法.
研究的目的:
- 开发和实施一种用于直接估计海洋物种丰度的新方法.
- 解决热带金枪鱼种群传统库存评估技术的局限性.
- 为监测表现出协会行为的野生物种提供一个新的工具.
主要方法:
- 协会行为丰富度指数 (ABBI) 的发展.
- 在印度洋西部捕捞鱼,黄鱼和大眼鱼的ABBI实施.
- 利用与聚合点的关联行为进行直接丰富度估计.
主要成果:
- 在三种热带金枪鱼种类中,ABBI已成功实施.
- 类似的相对丰度轨迹被观察到鱼,黄鱼和大眼鱼.
- 这项研究表明,在具有聚合行为的物种中,有直接丰度估计的潜力.
结论:
- 基于关联行为的丰富度指数 (ABBI) 是传统热带金枪鱼种群评估方法的替代方案.
- 阿比提供了一种新的方法来评估与环境结构相关的各种野生物种的丰富性.
- 这种方法提高了更有效地监测和管理被开发的海洋种群的能力.
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