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| Main Authors: | , , , , , , , , , , , , , , , , , , , , , |
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| Format: | Artículo científico |
| Language: | en |
| Published: |
Limnology and oceanography letters
2025
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| Online Access: | https://pubmed.ncbi.nlm.nih.gov/40667513/ |
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Table of Contents:
- A global dataset of nitrogen fixation rates across inland and coastal waters. Fulweiler, Robinson W Berberich, Megan E Rinehart, Shelby A Taylor, Jason M Kelly, Michelle C Ray, Nicholas E Oczkowski, Autumn Balint, Sawyer J Geisser, Alexandra H Mahoney, Catherine R Benavides, Mar Church, Matthew J Loeks, Brianna Newell, Silvia E Olofsson, Malin Oppong, Jimmy C Roley, Sarah S Vizza, Carmella Wilson, Samuel T Groffman, Peter M Scott, J Thad Marcarelli, Amy M Biological nitrogen fixation is the conversion of dinitrogen (N) gas into bioavailable nitrogen by microorganisms with consequences for primary production, ecosystem function, and global climate. Here we present a compiled dataset of 4793 nitrogen fixation (N-fixation) rates measured in the water column and benthos of inland and coastal systems via the acetylene reduction assay, N labeling, or N/Ar technique. While the data are distributed across seven continents, most observations (88%) are from the northern hemisphere. N labeling accounted for 67% of water column measurements, while the acetylene reduction assay accounted for 81% of benthic N-fixation observations. Dataset median area-, volume-, and mass-normalized N-fixation rates are 7.1 mol N-N m h, 2.3 × 10 mol N-N L h, and 4.8 × 10 mol N-N g h, respectively. This dataset will facilitate future efforts to study and scale N-fixation contributions across inland and coastal aquatic environments.