Shelled Pteropod individual-based model output for the publication: The impact of aragonite saturation variability on shelled pteropods: An attribution study in the California current system

Observations from the California Current System (CalCS) indicate that the long-term trend in ocean acidification (OA) and the naturally occurring corrosive conditions for the CaCO3 mineral aragonite (saturation state Ω &lt; 1) have a damaging effect on shelled pteropods, a keystone group of calcifying organisms in the CalCS. Concern is heightened by recent findings suggesting that shell formation and developmental progress are already impacted when Ω falls below 1.5. Here, we quantify the impact of low Ω conditions on pteropods using an individual-based model (IBM) with life-stage-specific mortality, growth, and behaviour in a high-resolution regional hindcast simulation of the CalCS between 1984 and 2019. Special attention is paid to attributing this impact to different processes that lead to such low Ω conditions, namely natural variability, long-term trend, and extreme events. We find that much of the observed damage in the CalCS, and specifically &gt;70% of the shell CaCO3 loss, is ..., This dataset contains the modelled trajectories of shelled pteropod in the California Current System for each year in the period between 1984 and 2019. The population dynamics were modelled using an extended version of the shelled pteropod Individual-Based Model (spIBM). The environmental conditions experienced by the modelled pteropods and their movement were calculated using the Lagrangian tool OceanParcelsv2.1.3 and the biogeochemical-physical forcing taken from the high-resolution hindcast simulation of the Northeast Pacific taken from Desmet et al. (2022). The spIBM is parameterized based on members of the Limacinidae family, and calibrated to capture the observed pteropod abundance signal, life-stage duration, and succession sequence for the temperate region. It simulates the pteropod life-cycle using four life-stages (eggs, larvae, juveniles, and adults) across two generations per year (spring and overwintering generation). The pteropod population is simulated from January 1st to..., , # Shelled Pteropod Individual-Based Model output for the publication \"The impact of aragonite saturation variability on shelled pteropods: An attribution study in the California Current System\" [https://doi.org/10.5061/dryad.wh70rxww9](https://doi.org/10.5061/dryad.wh70rxww9) This dataset contains the simulated shelled pteropod trajectories for the period between 1984-2019 in the California Current System used for the publication \"The impact of aragonite saturation variability on shelled pteropods: An attribution study in the California Current System\". The trajectories were simulated using an improved version of the shelled pteropod Individual-Based Model [spIBM](https://doi.org/10.5281/zenodo.11096564). This version of the spIBM simulates the response of individuals to damaging conditions in two scenarios, which allowed us to distinguish between responses caused by the natural variability in aragonite saturation state (Ω), the long-term ocean acidification trend, and extreme events ...加利福尼亚流系统（California Current System, CalCS）的观测结果显示，海洋酸化（ocean acidification, OA）的长期趋势，以及碳酸钙（CaCO₃）矿物文石的自然腐蚀性环境（饱和状态Ω<1），会对有壳翼足类造成损害——这类生物是加利福尼亚流系统中钙化生物的关键类群。近期研究发现，当Ω降至1.5以下时，翼足类的壳体形成与发育进程就已受到影响，这进一步加剧了学界的担忧。 本研究基于1984-2019年加利福尼亚流系统的高分辨率区域后报模拟，利用考虑了生活史阶段特异性死亡率、生长与行为的个体模型（individual-based model, IBM），量化了低Ω环境对翼足类的影响。研究重点关注将该影响归因于三类不同的低Ω形成过程：自然变率、长期酸化趋势与极端事件。我们发现，加利福尼亚流系统中观测到的大部分损害，尤其是超过70%的壳体碳酸钙流失量，源于…… 本数据集包含1984-2019年加利福尼亚流系统内有壳翼足类的模拟轨迹。种群动态通过改进的有壳翼足类个体模型（shelled pteropod Individual-Based Model, spIBM）进行模拟。模拟翼足类所经历的环境条件与移动轨迹，通过拉格朗日工具OceanParcelsv2.1.3计算得到，生物地球化学-物理强迫场则取自Desmet等人（2022）发布的东北太平洋高分辨率后报模拟结果。 该spIBM以驼螺科（Limacinidae）物种为参数化基础，并针对温带海域的翼足类丰度特征、生活史阶段时长与演替序列进行了校准。模型通过四个生活史阶段（卵、幼虫、稚虫、成体），每年模拟两代翼足类（春季世代与越冬世代）的生命周期。翼足类种群模拟周期为每年1月1日至…… # 发表论文《文石饱和状态变率对翼足类的影响：加利福尼亚流系统归因研究》的翼足类个体模型输出数据集 [https://doi.org/10.5061/dryad.wh70rxww9](https://doi.org/10.5061/dryad.wh70rxww9) 本数据集包含发表于论文《文石饱和状态变率对翼足类的影响：加利福尼亚流系统归因研究》中，1984-2019年加利福尼亚流系统有壳翼足类的模拟轨迹。轨迹模拟采用了改进版的有壳翼足类个体模型（spIBM，https://doi.org/10.5281/zenodo.11096564）。该版本spIBM可在两种场景下模拟个体对损害环境的响应，从而能够区分由文石饱和状态（Ω）自然变率、长期海洋酸化趋势与极端事件所引发的不同响应……