GLOBEC: Mysticete Whale Acoustic Census

美国全球海洋生态系统动态（U.S. Global Ocean Ecosystems Dynamics，简称GLOBEC）项目的目标是了解并最终预测海洋动物种群对自然和人为气候变化的反应。在南大洋（SO）的研究表明，气候过程和生态系统动力学之间的强耦合通过每年海冰的形成和破坏。南大洋GLOBEC计划（SO GLOBEC）将通过确定影响目标物种分布、丰度和种群动态的关键参数，研究物理过程与生态系统响应之间的动态关系。SO GLOBEC项目的总体目标是阐明大陆架环流过程及其对海冰形成和磷虾分布的影响，并研究影响磷虾生存和向更高营养水平（包括企鹅、海豹和鲸鱼）供应的因素。美国对国际SO GLOBEC项目的贡献重点将放在冬季过程上。这个部分将侧重于确定神秘鲸，特别是蓝鲸的最低种群估计、分布和季节性。这将通过部署在海底的被动声波记录仪来完成，为期一到两年。在南极部署的大孔径自主水听器阵列将结合使用被动声学作为神秘鲸鱼探测和普查的工具。综合SO GLOBEC计划的结果将是提高海洋生物资源的可预测性，特别是对当地和全球气候变化的可预测性。

The U.S. Global Ocean Ecosystems Dynamics (U.S. GLOBEC) program has the goal of understanding and ultimately predicting how populations of marine animal species respond to natural and anthropogenic changes in climate. Research in the Southern Ocean (SO) indicates strong coupling between climatic processes and ecosystem dynamics via the annual formation and destruction of sea ice. The Southern Ocean GLOBEC Program (SO GLOBEC) will investigate the dynamic relationship between physical processes and ecosystem responses through identification of critical parameters that affect the distribution, abundance and population dynamics of target species. The overall goals of the SO GLOBEC program are to elucidate shelf circulation processes and their effect on sea ice formation and krill distribution, and to examine the factors which govern krill survivorship and availability to higher trophic levels, including penguins, seals and whales. The focus of the U.S. contribution to the international SO GLOBEC program will be on winter processes. This component will focus on determining minimum population estimates, distribution and seasonality for mysticete whales, especially blue whales. This will be accomplished using passive acoustic recorders deployed on the seafloor for a period of one to two years. The deployment of a large aperture autonomous hydrophone array in the Antarctic will incorporate the use of passive acoustics as a tool for mysticete whale detection and census. The result of the integrated SO GLOBEC program will be to improve the predictability of living marine resources, especially with respect to local and global climatic shifts.