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Fine-scale acoustic and movement behaviour of bottlenose dolphins (Tursiops truncatus) in Cardigan Bay, Wales

威尔士卡迪根湾宽吻海豚（Tursiops truncatus）的精细声音和运动行为

基本信息

批准号：
2443537
负责人：
金额：
--
依托单位：
University of Bristol
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2020
资助国家：
英国
起止时间：
2020 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2443537
关键词：
Fine scale acoustic movement behaviour

项目摘要

The bottlenose dolphin is a qualifying feature of three Special Areas of Conservation (SAC) in the UK, two of which are in Cardigan Bay, Wales. Although the population of bottlenose dolphins in Cardigan Bay are thought to be stable over the long-term, recent monitoring suggests a decline over the last decade - the reasons for this remain unclear. It is possible that bottlenose dolphins are moving outside of the Cardigan Bay SACs, an aspect that requires further investigation. The aim of this project is to significantly advance our knowledge of how individual dolphins use habitats found in Cardigan Bay and Pen Llyn a'r Sarnau SACs in Cardigan Bay, Wales. The project will utilise acoustic monitoring techniques such as towed arrays and fixed-bottom acoustic recorders with detailed systematic behavioural observation to determine the fine-scale characteristics of how individuals within the broader population interact, range, use habitat and how these behaviours fluctuate temporally. For example, this project will quantify individual dolphin habitat preferences and movement patterns using acoustic signatures of dolphins. The findings will have implications for conservation and management that may necessitate the development of wider- or indeed more habitat-specific conservation measures within and outside of current SAC designations.

海豚是英国三个特别保护区的合格特征，其中两个在威尔士的开衫湾。虽然开衫湾的海豚数量被认为是长期稳定的，但最近的监测表明，在过去十年中，海豚数量有所下降，原因仍不清楚。这是可能的，海豚正在移动的开衫湾SAC外，一个方面，需要进一步调查。这个项目的目的是显着推进我们的知识如何个别海豚使用栖息地发现在开衫湾和笔Llyn在开衫湾，威尔士Sarnau SAC。该项目将利用声学监测技术，如拖曳阵列和固定底部声学记录仪，进行详细的系统行为观察，以确定更广泛人群中个体如何相互作用，范围，使用栖息地以及这些行为如何随时间波动的精细特征。例如，该项目将利用海豚的声学特征来量化个体海豚的栖息地偏好和运动模式。这些发现将对保护和管理产生影响，可能需要在目前的SAC指定范围内和范围外制定更广泛的或更具体的生境保护措施。