The ecology and taxonomy of Synechococcus from saltwater lakes in the Vestfold Hills, Antarctica ...
In 1992, a marine Synechococcus was discovered in a meromictic lake in the Vestfold Hills, Antarctica. This thesis describes the ecology and taxonomy of this organism. Ace Lake is a saltwater, meromictic that was isolated from the marine environment approximately 6000 years ago. In 1992, The lake wa...
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| Format: | Thesis |
| Language: | unknown |
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University Of Tasmania
2023
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| Online Access: | https://dx.doi.org/10.25959/23245361 https://figshare.utas.edu.au/articles/thesis/The_ecology_and_taxonomy_of_Synechococcus_from_saltwater_lakes_in_the_Vestfold_Hills_Antarctica/23245361 |
| Summary: | In 1992, a marine Synechococcus was discovered in a meromictic lake in the Vestfold Hills, Antarctica. This thesis describes the ecology and taxonomy of this organism. Ace Lake is a saltwater, meromictic that was isolated from the marine environment approximately 6000 years ago. In 1992, The lake was 25 m deep, the top 12 m was oxygenated and the lake had a salinity range of 16 to 40 g kg-1 salt. The recent discovery of Synechococcus in Ace Lake was aided by flow cytometric methods. In Ace Lake, Synechococcus occured in the highest densities below the pycnocline with maximum numbers occurring just above the oxic/anoxic interface. Synechococcus bloomed in spring with numbers declining again in early January. At the peak of the bloom in 1992, a density of 8 x 106 cells mr1 was recorded at 11 m in the lake. No diel periodicity in the growth of Synechococcus was detected. Synechococcus was also present in two of ten other meromictic lakes and basins. The organism occured throughout the aerobic zone in Pendant ... |
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