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https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

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Significance We present direct, field-based measurements of low nitrogen fixation rates in the eastern tropical South Pacific (ETSP) Ocean demonstrating that N2 fixation plays a minor role supporting export production regionally. These results are in contrast to indirect estimates that the highest global rates of N2 fixation occur in the ETSP. The low N2 -fixation rates occur in a region with relatively high surface ocean phosphate concentrations (and low nitrate concentrations) but where atmospheric iron deposition rates are diminishingly low. Consequently, these results indicate that the ETSP hosts a minor fraction of global N2 -fixation fluxes and that low nitrate to phosphate concentration ratios alone are insufficient to support high N2 -fixation fluxes.

Low rates of nitrogen fixation in eastern tropical South Pacific surface waters