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Overwintering populations of Mesodinium rubrum (Ciliophora: Haptorida) in lakes of the Vestfold Hills, East Antarctica
Gibson, JAE and Swadling, KM and Pitman, T and Burton, HR (1997) Overwintering populations of Mesodinium rubrum (Ciliophora: Haptorida) in lakes of the Vestfold Hills, East Antarctica. Polar Biology, 17. pp. 175-179.
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The autotrophic ciliate Mesodinium rubrum Lohmann was observed during winter and spring in saline lakes ranging in salinity from 2 to 78& in the Vestfold Hills, Antarctica. The ciliate remained active during winter, and contained chlorophyll even though the level of light available for photosynthesis was minimal. No evidence of encystment as a means of survival during winter was observed. A seasonal study in one of the lakes, Ace Lake, revealed that M. rubrum was present throughout the year at abundances ranging from 1]104 to 3.5]105 cells l~1. During the winter period, when little light penetrated the lakeÃƒÂ•s ice cover, cells were most common immediately under the ice at 2 m, where cell numbers were typically 8]104 cells l~1.
|Keywords:||Mesodinium rubrum, Vestfold Hills, Antarctica, lakes, biogeography, winter|
|Journal or Publication Title:||Polar Biology|
|Page Range:||pp. 175-179|
|Identification Number - DOI:||10.1007/s003000050119|
|Additional Information:||The original publication is available at www.springerlink.com|
|Date Deposited:||21 Feb 2007|
|Last Modified:||18 Nov 2014 03:13|
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