ABSTRACT: Recovered archival satellite tags afford a rare opportunity to evaluate diving behavior relative to ocean conditions at fine spatiotemporal scales. Ocean temperature and mixed layer depth (MLD) were strongly related to daily and seasonal patterns in diving behavior of an adult female porbeagle shark Lamna nasus. The shark remained below MLD when waters were strongly stratified in summer or in the Gulf Stream; the daily timing of dives was associated with local sunrise and sunset. In the presence of a hurricane, diving activity abruptly increased, coincident with upwelling causing an abrupt decrease in surface temperature. Our first report of the behavioral response to a hurricane as well as the seasonal patterns in depths, occupied temperatures, and vertical speeds suggest environmental preferences of porbeagle are not static and individuals may use horizontal, as well as vertical, movement to take advantage of areas with specific characteristics.

中文翻译：

---

海洋条件和飓风的变化影响了波尔格纳姆潜鼻潜水行为

摘要：回收的档案卫星标签为评估相对于海洋条件的精细时空尺度的潜水行为提供了难得的机会。海洋温度和混合层深度（MLD）与成年雌性大嘴鲨Lamna nasus的潜水行为的日常和季节性模式密切相关。当夏季或海湾溪流水域强烈分层时，鲨鱼仍保持在MLD以下。潜水的每日时间与当地的日出和日落时间有关。在飓风的存在下，潜水活动突然增加，与上升流同时发生，导致表面温度突然下降。我们对飓风的行为反应以及深度，居住温度和垂直速度的季节性模式的第一份报告表明，猎狼犬的环境偏好不是一成不变的，个人可以利用水平和垂直移动来利用这些区域具有特定的特征。