Supplementary data files to the article "Nitrogen fixation under declining Arctic sea ice" in Communications Earth and Environment.

Supporting datasets and amplicon sequence variants (nucleotide and amino acids) to the article "Nitrogen fixation under declining Arctic sea ice". Supplementary Datasheet 1. Rate and error-propagation calculations for nitrogen fixation rates and specific N₂-uptake.<br>Supplementary Datasheet 2. Rate calculations for carbon fixation rates.<br>Supplementary Datasheet 3. Data from the quantitative PCR of <i>nifH</i><i> </i>from three non-cyanobacterial diazotroph assays: Beta-Arctic1, Gamma-Arctic1, and Gamma-Arctic2.<br>Nucleotide and amino acid lists of generated <i>nifH</i> amplicon sequence variants.