NESP MaC Project 3.16 - Delineation and estimation of the Maugean skate population in Macquarie Harbour, Tasmania

本记录概述了国家环境保护计划海洋和沿海枢纽研究计划2023年项目“塔斯马尼亚州麦夸里港毛吉岛溜冰鞋种群的描述和估计”。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/> 濒临灭绝的毛吉岛溜冰鞋现在只在麦夸里港发现，那里的环境退化历史悠久，最近的研究表明，这种冰鞋的数量可能正在下降。然而，我们现有的丰度估计工具不足以确定种群状况，需要一种新的方法。该项目将使用下一代基因测序和新的成像调查工具来描绘和估计麦考里港毛吉岛溜冰鞋种群的规模，为保护战略提供信息。还需要研究毛吉岛溜冰鞋的进化潜力，以适应不断变化的环境条件。这项研究将通过使用全基因组分型来检查溜冰鞋的遗传多样性和精细的种群结构，并开发全基因组范围的单核苷酸多态的高分辨率数据集来满足这些需求。这种遗传方法将有助于形成适应性管理策略，如圈养繁殖，并增强我们发现具有适应潜力的不同血统的能力。<br/> <br/> 产出<br/> ·组织采样结果和全基因组群体遗传结构[数据集]<br/> ·自适应分辨率成像声纳(ARIS)和激光雷达水柱扫描[数据集]<br/> ·最终项目报告[书面]

This record provides an overview of the NESP Marine and Coastal Hub Research Plan 2023 project "Delineation and estimation of the Maugean skate population in Macquarie Harbour, Tasmania". For specific data outputs from this project, please see child records associated with this metadata.<br /> --------------------<br /> <br /> The endangered Maugean skate is now only found in Macquarie Harbour, which has a long history of environmental degradation, and recent research suggests that the population may be declining. However, our current abundance estimation tools are inadequate to determine population status and a new method is needed. This project will use next generation genetic sequencing and novel imaging survey tools to delineate and estimate the size of the Macquarie Harbour Maugean skate population to inform conservation strategies. There is also a need to investigate the evolutionary potential of the Maugean skate to adapt to the changing environmental conditions. This research will address these needs by examining the skate's genetic diversity and fine-scale population structure using whole genome typing, and developing a high-resolution dataset of genome-wide single nucleotide polymorphisms. This genetic approach will help inform adaptive management strategies, such as captive breeding, and enhance our ability to detect differentiated lineages with adaptive potential.<br /> <br /> Outputs<br /> • Tissue sampling results and genome-wide population genetic structure [dataset]<br /> • Adaptive resolution imaging sonar (ARIS) and lidar water column scanning [dataset]<br /> • Final project report [written]