Climate-driven oscillation of phosphorus and iron limitation in the North Pacific Subtropical Gyre.

ABSTRACT: The supply of nutrients is a fundamental regulator of ocean productivity and carbon sequestration. Nutrient sources, sinks, residence times, and elemental ratios vary over broad scales, including those resulting from climate-driven changes in upper water column stratification, advection, and the deposition of atmospheric dust. These changes can alter the proximate elemental control of ecosystem productivity with cascading ecological effects and impacts on carbon sequestration. Here, we report multidecadal observations revealing that the ecosystem in the eastern region of the North Pacific Subtropical Gyre (NPSG) oscillates on subdecadal scales between inorganic phosphorus (P _i ) sufficiency and limitation, when P _i concentration in surface waters decreas

SUBMITTER: Letelier RM 

PROVIDER: S-EPMC6600909 | biostudies-literature | 2019 Jun

REPOSITORIES: biostudies-literature