Carbon and Nitrogen content and cell biovolume of marine protist Rhizaria (Radiolaria and Phaeodaria)

Full data table for Carbon content, Nitrogen content, and biovolume measurements of planktic Rhizaria.
This data is associated with the publication: Mansour, J.S., Norlin, A., Llopis Monferrer, N., L'Helguen, S., and Not, F. (2020). Carbon and nitrogen content to biovolume relationships for marine protists of the Rhizaria lineage (Radiolaria and Phaeodaria). Limnol. Oceanogr. doi: 10.1002/lno.11714

Rhizaria are ubiquitous in oceanic waters. They have previously been underestimated due to their fragility, but recent (molecular) studies show that they are major components of the planktic community and contribute greatly to, among others, the carbon and silica flux. This study provides key data on the carbon and nitrogen content of Rhizaria and its relation to cell biovolume. Here presented are the raw data of measured (CN Elemental Analyzer) carbon and nitrogen content of Rhizaria (i.e. specifically Collodaria, Acantharia, Nassellaria, Spumellaria, Aulacantha, Protocystis, and Challengeria), as well as picture-based estimates of biovolume and derived characteristics. The biovolume-to-mass relationship for these protists has allowed the formulation of mass-to-volume equations and ratios that can be used to estimate mass from biovolume. Our data shows that global Rhizaria biomass might have in fact still been underestimated. This will be pivotal information for studies of ocean ecology and for modeling biomass fluxes, whether it is biogeographic or smaller-scale system dynamics.

本数据集包含了浮游有孔虫类群（包括放射虫和硅藻）的碳含量、氮含量以及生物体积测量的完整数据表。该数据与以下出版物相关联：Mansour, J.S., Norlin, A., Llopis Monferrer, N., L'Helguen, S., and Not, F. (2020). 海洋有孔虫类群（放射虫和硅藻）的碳和氮含量与生物体积关系。湖泊与海洋科学，doi: 10.1002/lno.11714。有孔虫类在海洋水体中普遍存在，由于脆弱性曾一度被低估，但近期（分子）研究表明，它们是浮游生物群落的主要组成部分，并对碳和硅的通量做出了巨大贡献。本研究提供了关于有孔虫类碳和氮含量的关键数据及其与细胞生物体积的关系。所展示的是通过元素分析仪（CN Elemental Analyzer）测量的有孔虫类（即具体包括Collodaria、Acantharia、Nassellaria、Spumellaria、Aulacantha、Protocystis和Challengeria）的碳和氮含量原始数据，以及基于图像的生物体积和衍生特征的估计值。这些原生生物的生物体积与质量关系使得质量与体积方程和比率的建立成为可能，从而可以通过生物体积估算质量。我们的数据显示，全球有孔虫类生物量可能实际上仍被低估。这对于海洋生态学研究以及生物量通量模型（无论是生物地理学尺度还是较小尺度的系统动力学）都将至关重要。