快速变暖的海洋驱动性分歧的息地使用在一个危的掠食性海洋内热
Lucy R Mead1,2,3, Adam Piper1, David Jiménez Alvarado3,4
1Institute of Zoology, Zoological Society of London, London, UK.
Global change biology
|July 16, 2025
概括
气候变化对海洋生物产生影响,特别是对温度敏感的天使鱼 (Squatina squatina). 海洋温度上升扰乱了繁殖和息地使用,威胁到这个临灭绝的物种.
科学领域:
- 海洋生物学 海洋生物学
- 气候变化 生态学 生态学
- 保护科学 保护科学
背景情况:
- 气候变化对海洋生态系统构成重大威胁,改变了物种的现象学,分布和行为.
- 对于对快速变暖的适应情况的特定物种数据,特别是对海洋生态热生物的数据,有着极大的需求.
研究的目的:
- 调查天使鱼 (Squatina squatina) 分布的环境驱动因素.
- 为了报告2022年与热应激相关的行为异常,在这个临灭绝的物种.
主要方法:
- 在La Graciosa海洋保护区 (2018-2023) 追踪112只成年天使 (Squatina squatina) 的声学遥测.
- 使用增强回归树和通用添加模型对遥感环境数据进行季节性存在的分析.
主要成果:
- 在环境对分布的影响方面观察到显著的性别差异.
- 雌性天使鱼 (Squatina squatina) 显示出对温度的高度敏感性,其潜在的上限接近22.5°C.
- 在2022年繁殖季节缺少雌性与创纪录的高海面温度相关.
结论:
- 海洋温度的升温和热异常扰乱了天使 (Squatina squatina) 运动和息地使用的季节性线索,对性别有显著的影响.
- 预计的气候变暖可能会使女性天使鱼的关键息地变得不适宜居住,从而危及该物种的生存.
- 迫切地将特定物种的热容忍度纳入保护战略,对于在不断变化的海洋中有效管理至关重要.
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