Preprints
https://doi.org/10.5194/tc-2016-186
https://doi.org/10.5194/tc-2016-186

  05 Oct 2016

05 Oct 2016

Review status: this preprint was under review for the journal TC but the revision was not accepted.

Brief Communication: Capturing scales of spatial heterogeneity of Antarctic sea ice algae communities

Alexander L. Forrest1, Lars C. Lund-Hansen2, Brian K. Sorrell2, Isak Bowden-Floyd3, Vanessa Lucieer4, Remo Cossu5, and Ian Hawes6 Alexander L. Forrest et al.
  • 1Civil & Environmental Engineering, University of California – Davis, Davis, CA 95616, USA
  • 2Department of Bioscience, Aquatic Biology and Arctic Research Centre, Aarhus University, DK-8000 Aarhus C., Denmark
  • 3Australian Maritime College, University of Tasmania, Launceston, TAS 7250, Australia
  • 4Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS 7053, Australia
  • 5School of Civil Engineering, University of Queensland, St Lucia, QLD 4072, Australia
  • 6Gateway Antarctica, University of Canterbury, Christchurch, Private Bag 4800, New Zealand

Abstract. Identifying spatial heterogeneity of sea ice algae communities is critical to predicting ecosystem response under future climate scenarios. Using an autonomous robotic sampling platform beneath sea ice in McMurdo Sound, Antarctica, we measured irradiance in spectral bands expected to describe the spatial heterogeneity. Derived estimates of ice algae biomass identified patchiness at length scales varying from 50–70 m under first-year sea ice. These results demonstrate that a step-change in how these communities can be assessed and monitored. The developed methodologies could be subsequently refined to further categorize different ice algae communities and their associated productivity in both Arctic and Antarctic waters.

Alexander L. Forrest et al.

 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement
 
Status: closed
Status: closed
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
Printer-friendly Version - Printer-friendly version Supplement - Supplement

Alexander L. Forrest et al.

Alexander L. Forrest et al.

Viewed

Total article views: 1,111 (including HTML, PDF, and XML)
HTML PDF XML Total BibTeX EndNote
635 362 114 1,111 68 114
  • HTML: 635
  • PDF: 362
  • XML: 114
  • Total: 1,111
  • BibTeX: 68
  • EndNote: 114
Views and downloads (calculated since 05 Oct 2016)
Cumulative views and downloads (calculated since 05 Oct 2016)

Viewed (geographical distribution)

Total article views: 1,010 (including HTML, PDF, and XML) Thereof 1,009 with geography defined and 1 with unknown origin.
Country # Views %
  • 1
1
 
 
 
 

Cited

Latest update: 20 Sep 2021
Download
Short summary
Measuring light conditions across sub-kilometer underwater transects of sea-ice in McMurdo Sound, Antarctica with an Autonomous Underwater Vehicle (AUV), we were able to derive estimates of ice algae biomass living at the ice/ocean interface at an unprecedented resolution. Characterizing ice algae communities at the appropriate scales of ecosystem variability is critical to understanding present day conditions and to predict how ecosystem response under future climate change scenarios.