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Did dilution limit the phytoplankton response to iron addition in HNLCLSi sub-Antarctic waters during the SAGE experiment?

Law, Cliff S; Smith, Murray J.; Stevens, C L; Abraham, E R; Ellwood, Michael; Hill, Peter; Nodder, Scott D; Peloquin, J.; Pickmere, Stuart; Safi, Karl A; Walkington, C M


An in situ iron addition experiment (SAGE) was carried out in high-nitrate low-chlorophyll low-silicic acid (HNLCLSi) sub-Antarctic surface waters south-east of New Zealand. In contrast to other iron addition experiments, the phytoplankton response was minor, with a doubling of biomass relative to surrounding waters, with the temporal trends in dissolved iron and macronutrients instead dominated by physical factors such as mixing and dilution. The initial increase in patch surface area...[Show more]

CollectionsANU Research Publications
Date published: 2011
Type: Journal article
Source: Deep-Sea Research Part II: Tropical studies in oceanography
DOI: 10.1016/j.dsr2.2010.10.018


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