Abstract
The Antarctic Lake Wujka (62°09′28.3″S, 58°27′56.3″W), a shallow water body (Z m = 1.38 m), situated at c.15 m from the seashore was sampled at two points (Sp 1 and Sp 2) at 3-day intervals from December 2003 to June 2004. The two sampling points differing in location and depth: Sp 1 (Z m = 0.50 m) was the shallowest site, located near the lake outlet, while Sp 2 (Z m = 1.38 m) was the deepest spot of the lake. The population density of Notholca squamula salina peaked in June (at 114 ind. l−1) at Sp 1, while at Sp 2 peaked in January (80 ind. l−1) and May (150 ind. l−1). Spearman non-parametric correlations with temperature, salinity, total dissolved solids, conductivity and pH revealed effects that characterize N. squamula salina as a species capable of surviving in a range of aquatic environments, but with a preference for high salinity, food and low temperature. It occurred in highest numbers when the diatom Achnanthes lanceolata var. rostrata (Øestrup) Hust., normally a benthic species, was stirred up into the water during storms that also raised the lake’s salinity to above 20 psu.
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References
Bell EM, Laybourn-Parry J (1999) Annual plankton dynamics in an Antarctic saline lake. Freshw Biol 41:507–519
Camacho A (2006) Planktonic microbial assemblages and the potential effects of metazooplankton predation on the food web of lakes from the maritime Antarctica and sub-Antarctic islands. Rev Environ Sci Biotechnol 5:167–185
Dartnall HJG (1983) Rotifers of the Antarctic and subAntarctic. Hydrobiologia, 104:57–60
Dartnall HJG, Hollowday ED (1985) Antarctic rotifers. Br Antarct Surv Sci Rep, 100:46
Fontaneto D, De Smet WH, Ricci C (2006) Rotifers in saltwater environments, re-evaluation of an incospicous taxon. J Mar Biol Ass UK 86:623–656
Hart BT, Bailey P, Edwards R, Hortle K, James K, McMahon A, Meredith Ch, Swadling K (1991) A review of the salt sensitivity of the Australian freshwater biota. Hydrobiologia 210:105–144
Janiec K (1993) The freshwater micro- and meiofauna of Admiralty Bay, King George Island, South Shetland Islands: proceedings of NIPR symposium. Polar Biol 6:133–138
Janiec K (1996) The comparison of freshwater invertebrates of Spitsbergen (Arctic) and King George Island (Antarctic). Pol Polar Res 17(3–4):173–202
May L (1980) On the ecology of Notholca squamula Müller in Loch Leven, Kinross, Scotland. Hydrobiologia 73:177–180
McInnes SJ, Ellis-Evans JC (1990) Micro-invertebrate community structure within a maritime Antarctic lake: proceedings of NIPR symposium. Polar Biol 3:179–189
Ochwanowski P, Pociecha A (2005) The impact of abiotic factors on diatom density dynamics in the freshwater lake Wujka near the Henryk Arctowski Polish Antarctic station during austral summer. Oceanol Hydrobiol Stud 34(Supplement 3):257–267
Paturej E (2006) Assessment of the trophic state of the coastal Lake Gardno based on community structure and zooplankton-related indices. Electronic Journal of Polish Agricultural Universities: http://www.ejpau.media.pl/volume9/issue2/art-17.html
Pejler B (1995) Relation to habitat in rotifers. Hydrobiologia 313:267–278
Pociecha A (2005) Effect of temperature on respiration of Branchinecta gaini (Daday, 1910). Abstracts SEFS 4-4th symposium for European Freshwater Sciences, Kraków, 22–26 August 2005, p 128
Rakusa-Suszczewski S (1992) Zatoka Admiralicji. Antarktyka, Oficyna Wydawnicza. Instytut Ekologii PAN, Dziekanów Leśny pp 9–13
Ricci C (2001) Dormancy patterns in rotifers. Hydrobiologia 446/447:1–11
Schröder (2005) Diapause in monogonont rotifers. Hydrobiologia 546:291–306
Swadling KM, Dartnall HJG, Gibson JAE, Saulnier-Talbot E, Vincent WF (2001) Fosill rotifers and the early colonization of an Antarctic lake. Quat Res 55:380–384
Wetzel RG (1975) Limnology. Philadelphia-London-Toronto. W. B. Sounders, 743 pp
Acknowledgments
I thank Prof. H. Dumont for his critical opinion regarding the text and language correction, and Prof. S. Rakusa-Suszczewski for enabling me to participate in the 28th Polish Antarctic expedition to the H. Arctowski station. My study was supported by the State Committee for Scientific Research based in Warsaw, grant PBZ -KBN-108/PO4/2004.
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Pociecha, A. Density dynamics of Notholca squamula salina Focke (Rotifera) in Lake Wujka, a freshwater Antarctic lake . Polar Biol 31, 275–279 (2008). https://doi.org/10.1007/s00300-007-0355-2
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DOI: https://doi.org/10.1007/s00300-007-0355-2