Articles | Volume 12, issue 11
Biogeosciences, 12, 3567–3577, 2015
https://doi.org/10.5194/bg-12-3567-2015
Biogeosciences, 12, 3567–3577, 2015
https://doi.org/10.5194/bg-12-3567-2015

Research article 10 Jun 2015

Research article | 10 Jun 2015

Photosynthesis–irradiance responses in the Ross Sea, Antarctica: a meta-analysis

W. O. Smith Jr. and K. Donaldson

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A compilation of photosynthesis-irradiance measurements from the Ross Sea, Antarctica, was analyzed for spatial and temporal trends, as well as the oceanographic factors that control the responses. The maximum, chlorophyll-specific, irradiance-saturated rate averaged 1.07+/-0.060 ug C per ug Chl per hour. Spring rates were 59% greater than summer rates. Irradiance, CO2, and iron had significant effects on rates. The effects of time need to be incorporated into models of Antarctic production.
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