Satellite tagging of female hawksbill sea turtles (Eretmochelys imbricata) nesting on Groote Eylandt, Northern Territory

Hawksbill turtles are classified Critically Endangered by the IUCN following intense commercial exploitation that decimated global stocks. Despite Australia supporting one of the largest breeding aggregations worldwide, hawksbill turtle biology and ecology remains poorly documented, especially for populations nesting in the Northern Territory. This study focused on the internationally significant hawksbill turtle population breeding in Groote Eylandt in the Gulf of Carpentaria, and aimed at providing high resolution information for managing this critically endangered species. By using multiple state-of-the-art analytical frameworks and combining satellite telemetry, hydrological modelling, and tag recapture data, we (i) assessed habitat utilisation during the inter-nesting and foraging periods, (ii) quantified migratory behaviour for better understanding of navigational strategies , and (iii) simulated post-hatchling dispersal patterns, which we subsequently compared to the location of adult foraging grounds.This metadata record, represents several different datasets listed hereafter, which can all be accessed through a multi-WFS service. CTD - Data parameters measured by the instruments include time, temperature, and depth. The data represented by this record are presented in delayed mode.GPS - Location data parameters measured by the instruments include time, longitude, latitude, location quality, along with other diagnostic information. The Fastloc GPS data represented by this record are presented in delayed mode. Argos - Location data parameters measured by the instruments include time, longitude, latitude, location quality, along with other diagnostic information provided by Argos (http://www.argos-system.org/). The Argos data represented by this record are presented in delayed mode. Haulout - A haulout begins when the SRDL has been continuously dry for a specified length of time (usually 10 minutes). It ends when continuously wet for another interval (usually 40 seconds). Haulout data parameters measured by the instruments include haulout start and end dates and longitude/latitude, and haulout number. The haulout data represented by this record are presented in delayed mode. Diving - Diving data parameters measured by the instruments include start and end time and longitude/latitude of each individual dive, post-dive surface duration, dive duration, maximum dive depth, intermediate dive depths and times. The diving data represented by this record are presented in delayed mode. Summary - As well as sending records of individual events such as dives and haulouts, the SRDL also calculates summary statistics of those events over a specified time period (usually 3, 4 or 6 hours). Summary statistics computed by the instruments include the proportion of time spent diving, at the surface and hauled-out, the number of dives, and the average, standard deviation and maximum dive duration and dive depth during each summary period. These statistics are based on all the data recorded by the SRDL and so are not prone to distortion by variations in the efficiency of transmission via Argos. The summary data represented by this record are presented in delayed mode. Note that it is impossible to subset this particular dataset using a bounding box as there is no latitude, longitude coordinates associated with each entry.

玳瑁龟（Hawksbill turtles）被国际自然保护联盟（IUCN）列为极危物种，缘由是高强度商业开发致使全球种群遭受毁灭性打击。尽管澳大利亚拥有全球规模最大的玳瑁龟繁殖集群之一，但学界对该物种的生物学与生态学特征仍知之甚少，尤其是北领地的筑巢种群。本研究聚焦于卡奔塔利亚湾格鲁特岛这一具有国际重要性的玳瑁龟繁殖种群，旨在为这一极危物种的保护管理提供高分辨率支撑数据。

本研究采用多种前沿分析框架，结合卫星遥测、水文模拟与标记重捕数据，完成三项核心任务：(i) 评估玳瑁龟在筑巢间期与觅食期的栖息地利用模式；(ii) 量化洄游行为特征，以深入解析其导航策略；(iii) 模拟幼体孵化后的扩散格局，并将该结果与成年个体觅食地的地理位置进行对比。

本元数据记录涵盖以下多组数据集，所有数据均可通过多WFS服务获取：
1. CTD数据：仪器测量参数包括时间、温度与水深。本记录对应的CTD数据以延迟模式发布。
2. GPS数据：仪器测量的位置参数包括时间、经度、纬度、定位质量，以及其他诊断信息。本记录对应的Fastloc GPS数据以延迟模式发布。
3. Argos数据：仪器测量的位置参数包括时间、经度、纬度、定位质量，以及Argos系统（http://www.argos-system.org/）提供的其他诊断信息。本记录对应的Argos数据以延迟模式发布。
4. 上岸记录数据：当SRDL设备持续干燥达指定时长（通常为10分钟）时，上岸事件开始；当设备持续湿润达指定间隔时长（通常为40秒）时，上岸事件结束。上岸记录的测量参数包括上岸起止日期、经纬度以及上岸编号。本记录对应的上岸数据以延迟模式发布。
5. 潜水数据：仪器测量的潜水参数包括单次潜水的起止时间与经纬度、潜水后水面停留时长、潜水时长、最大潜水深度、中间潜水深度及对应时长。本记录对应的潜水数据以延迟模式发布。
6. 汇总统计数据：除记录潜水、上岸等单个事件外，SRDL设备还会在指定时间段（通常为3、4或6小时）内计算上述事件的汇总统计量。设备计算的汇总统计参数包括：潜水时长占比、水面停留时长占比、上岸时长占比、潜水次数，以及各汇总周期内的平均、标准差与最大潜水时长及潜水深度。此类统计量基于SRDL记录的全部数据生成，不会因Argos传输效率的波动出现失真。本记录对应的汇总统计数据以延迟模式发布。

需注意，本数据集无法通过边界框（bounding box）进行子集提取，因每条记录均未关联纬度与经度坐标。