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Phytoplankton and sea ice algal biomass and physiology during the transition between winter and spring (McMurdo Sound, Antarctica)
Citation
McMinn, A and Martin, AR and Ryan, K, Phytoplankton and sea ice algal biomass and physiology during the transition between winter and spring (McMurdo Sound, Antarctica), Polar Biology, 33, (11) pp. 1547-1556. ISSN 0722-4060 (2010) [Refereed Article]
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Copyright Statement
The final publication is available at http://www.springerlink.com
Official URL: http://www.springerlink.com/content/b7132573126688...
DOI: doi:10.1007/s00300-010-0844-6
Abstract
The phytoplankton and sea ice algal communities
at the end of winter in McMurdo Sound were dominated
by Fragilariopsis sublineata, with Thalassiosira
antarctica, Melosira adele, Pinnularia quadreata, Entomoneis
kjellmannii and heterotrophic dinoflagellates also
present. Sea ice algal biomass at the end of winter was
very low, only 0.050 +- 0.019 mg chla m-2 in 2007 and
0.234 +- 0.036 mg chla m-2 in 2008, but this increased to
0.377 +- 0.078 mg chla m-2 by early October in 2007 and
to 1.07 +- 0.192 by late September in 2008. Under ice
phytoplankton biomass remained consistently below
0.1 lg chla l-1 throughout the measuring period in both
years. The photosynthetic parameters Fv/Fm, rETRmax
and a document microalgal communities that are mostly
healthy and well adapted to their low light under ice
environment. Our results also suggest that species such as
Fragilariopsis sublineata are well adapted to deal with low
winter light levels but are unlikely to survive an increase in
irradiance, whereas other taxa, such as Thalassiosira antarctica,
will do better in a higher light environment.
Item Details
Item Type: | Refereed Article |
---|---|
Keywords: | Winter;Sea ice algae;Phytoplankton;Antarctica;Photophysiology;Fv/Fm |
Research Division: | Earth Sciences |
Research Group: | Oceanography |
Research Field: | Biological oceanography |
Objective Division: | Environmental Policy, Climate Change and Natural Hazards |
Objective Group: | Understanding climate change |
Objective Field: | Effects of climate change on Antarctic and sub-Antarctic environments (excl. social impacts) |
UTAS Author: | McMinn, A (Professor Andrew McMinn) |
UTAS Author: | Martin, AR (Dr Andrew Martin) |
ID Code: | 67961 |
Year Published: | 2010 |
Web of Science® Times Cited: | 42 |
Deposited By: | IMAS Research and Education Centre |
Deposited On: | 2011-03-08 |
Last Modified: | 2022-08-17 |
Downloads: | 0 |
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