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Sea ice can contain high concentrations of dissolved organic carbon (DOC), much of which is carbohydrate-rich extracellular polymeric substances (EPS) produced by microalgae and bacteria inhabiting the ice. Here we report the concentrations of dissolved carbohydrates (dCHO) and dissolved EPS (dEPS) in relation to algal standing stock [estimated by(More)
Antarctic and Southern Ocean (ASO) marine ecosystems have been changing for at least the last 30 years, including in response to increasing ocean temperatures and changes in the extent and seasonality of sea ice; the magnitude and direction of these changes differ between regions around Antarctica that could see populations of the same species changing(More)
The availability of micronutrients is a key factor that affects primary productivity in High Nutrient Low Chlorophyll (HNLC) regions of the Southern Ocean. Nutrient supply is governed by a range of physical, chemical and biological processes, and there are significant feedbacks within the ecosystem. It has been suggested that baleen whales form a crucial(More)
Physical, biogeochemical and photosynthetic parameters were measured in sea ice brine and ice core bottom samples in the northwestern Weddell Sea during early spring 2006. Sea ice brines collected from sackholes were characterised by cold temperatures (range-7.4 to-3.8°C), high salinities (range 61.4–118.0), and partly elevated dissolved oxygen(More)
There is an error in Table 2. The numbers in the " Zn " column for " Average among krill " should be 255.5 ± 141.6. Please see the corrected Table 2 here. There is a reference missing from Table 3. Please see the corrected Table 3 here. Copyright: © 2015 Ratnarajah et al. This is an open access article distributed under the terms of the Creative Commons(More)
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