Macroalgal photosynthesis near the southern global limit for growth; Cape Evans, Ross Sea, Antarctica

@article{Schwarz2003MacroalgalPN,
  title={Macroalgal photosynthesis near the southern global limit for growth; Cape Evans, Ross Sea, Antarctica},
  author={A. Schwarz and Ian Hawes and Neil L. Andrew and Alf Norkko and Vonda J. Cummings and Simon F. Thrush},
  journal={Polar Biology},
  year={2003},
  volume={26},
  pages={789-799}
}
Photosynthetic characteristics of the red macroalgae Phyllophora antarctica and Phymatolithon foecundum collected from under sea ice at Cape Evans, McMurdo Sound (Ross Sea) were determined using in situ fluorometric and lab-based oxygen exchange techniques. Only 0.16% of incident irradiance penetrated the 2.5 m thick ice cover and photosynthetic parameters for both taxa were characteristic of highly shade-adapted plants. Saturation onset parameter (E k) did not exceed 13 μmol photons m-2 s-1 in… CONTINUE READING
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