Seawater carbonate chemistry and skeletal morphometricss of hybrid coral recruits

Using high-resolution 3D X-ray microscopy, this study aims to quantify skeletal parameters (e.g. length, diameter, surface area and volume) and examine skeletal deformity of purebred and interspecifc hybrid Acropora coral recruits previously generated via experimental crossing of Acropora cf. kenti and Acropora loripes. When tested under predicted ambient and mid-century conditions, hybrid ofspring were ftter than at least one of the parental purebreds, with survival and size being similar to, or exceeding that of the maternal parent. This study aims to determine whether the skeletal structure of these 7-month-old hybrid and purebred recruits were diferentially afected by predicted mid-century warming and acidifcation conditions. This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were extracted from tables in the related paper (see Related to) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2025-04-22.本研究采用高分辨率三维X射线显微镜技术，旨在量化纯种及种间杂交轴孔珊瑚（Acropora）幼体的骨骼参数（如长度、直径、表面积与体积），并检测其骨骼畸形情况。这些幼体此前通过对近似肯特轴孔珊瑚（Acropora cf. kenti）与洛里普斯轴孔珊瑚（Acropora loripes）开展实验杂交获得。在模拟预测的当前环境与本世纪中期环境条件的实验中，杂交后代的适应能力至少优于其中一种亲本纯种，其存活率与体型大小与母本相当，甚至超过母本。本研究旨在明确：这7月龄的杂交与纯种幼体的骨骼结构，是否会受到本世纪中期预测的气候变暖和海洋酸化条件的差异化影响。本数据集收录于国际原子能机构（IAEA）海洋酸化国际协调中心（OA-ICC）维护的OA-ICC数据汇编集（详见https://oa-icc.ipsl.fr）。本数据集的原始数据由OA-ICC数据管理员从相关论文的表格中提取（详见关联文献）。为实现与其他海洋酸化数据集的全面可比性，本研究采用R语言包seacarb（Gattuso等，2024）计算得到一套完整且一致的碳酸盐系统变量，具体方法参照Nisumaa等（2010）的描述。本数据集同时存档了原始数值与重新计算得到的参数（详见关联项目负责人）。使用seacarb进行碳酸盐化学计算的日期为2025年4月22日。