Localized nutrient colimitation of phytoplankton growth rates across the subtropical South Pacific Ocean

Proceedings of the National Academy of Sciences, Volume 122, Issue 50, December 2025. <br/>SignificanceOceanic phytoplankton support marine food webs and influence global climate. Their growth typically depends on the availability of nutrients; principally nitrogen, phosphorus, and iron. An ongoing conundrum is whether multiple nutrient …