The influence of seawater pH on U/ Ca ratios in the scleractinian cold-water coral Lophelia pertusa@en

The increasing pCO2 in seawater is a serious threat for marine calcifiers and alters the biogeochemistry of the ocean. Therefore, the reconstruction of past-seawater properties and their impact on marine ecosystems is an important way to investigate the underlying mechanisms and to better constrain the effects of possible changes in the future ocean. Cold-water coral (CWC) ecosystems are biodiversity hotspots. Living close to aragonite undersaturation, these corals serve as living laboratories as well as archives to reconstruct the boundary conditions of their calcification under the carbonate system of the ocean. […]海水二氧化碳分压（pCO₂）持续升高，对海洋钙化生物构成严重威胁，并改变海洋生物地球化学循环。 因此，重建古海水理化性质及其对海洋生态系统的影响，是探究其潜在作用机制、并更好地约束未来海洋可能变化所产生影响的重要途径。 冷水珊瑚（Cold-water coral, CWC）生态系统属于生物多样性热点区域。 这类珊瑚栖息于文石不饱和环境中，可作为活体实验室与自然档案，用于重建海洋碳酸盐体系下其钙化作用的边界条件。[...]