NESP MaC Project 1.26 - Relative abundance of the ‘western’ population of southern right whales from an aerial survey off southern Australia

本记录概述了NESP海洋和沿海枢纽桥接研究--“更新澳大利亚西南部聚集区分类的南部露脊鲸的照片识别研究”。有关此项目的特定数据输出，请参阅与此元数据关联的子记录。<br/> <br/> 对南方露脊鲸(Eubalaena Australis)的航空调查从澳大利亚珀斯(W.A.)横跨澳大利亚南部海岸进行。至塞杜纳(S.A.)自1993年以来，作为长期计划的一部分，监测这种濒危物种的恢复情况，并向保护管理计划(2011-2021年)通报情况(根据EPBC法案)。2020年的航空调查记录的鲸鱼数量比过去13年大幅减少，而且是该项目开始以来非产卵鲸鱼数量的最低水平。该项目于2021年8月进行的一项空中调查将提供年度种群数量的相对估计，以确定较长期的种群趋势，并有助于确定2020年是一个异常年份，还是近期恢复率和雌性繁殖周期的一些较长期变化的指标。<br/> <br/> 产出<br/> ·航鲸调查数据(按大小类别、数量和位置计数)-2021-22季节[数据集]<br/> ·鲸鱼个体照片识别数据--2021-22年季[图像--发布至ARWPIC]<br/> ·带有分析数据的最终技术报告，包括对主要调查结果向决策者提出的建议的简短摘要[书面]

This record provides an overview of the NESP Marine and Coastal Hub bridging study - "A photo-identification study of southern right whales to update aggregation area classification in the southwest of Australia". For specific data outputs from this project, please see child records associated with this metadata.<br /> --------------------<br /> <br /> Aerial surveys of southern right whales (Eubalaena australis) have been conducted across the southern Australian coast from Perth (W.A.) to Ceduna (S.A.) since 1993, as part of a long-term program to monitor the recovery, and inform the Conservation Management Plan (2011-2021), for this Endangered species (under the EPBC Act). The 2020 aerial survey recorded substantially lower numbers of whales than in the previous 13 years, and the lowest number of non-calving whales since the program started. An aerial survey conducted by this project in August 2021 will provide a relative estimate of annual population size for determining longer term population trends and contribute to determining if 2020 was an anomalous year or an indicator of some longer-term change to recent recovery rates and the female breeding cycle.<br /> <br /> Outputs<br /> • Aerial whale survey data (counts by size class, number, and location) - 2021-22 season [dataset]<br /> • Individual whale photo-identification data - 2021-22 season [imagery - published to ARWPIC]<br /> • Final technical report with analysed data, including a short summary of recommendations for policy makers of key findings [written]