Abstract
The responses of phytoplankton populations to seasonal changes in radiation flux in two Antarctic lakes with extensive winter ice-cover are described. A phytoplankton capable of photosynthesis was found throughout the year in both systems. During winter, low incident radiation combined with thick layers of snow and ice prevented in situ photosynthesis becoming detectable. The beginning of spring was marked by a reduction in snow cover which resulted in a considerable increase in surface penetrating radiation. Planktonic algae rapidly adapted to utilise these increased levels efficiently, though they still showed characteristics of strong shade adaptation.
Loss of ice cover at the start of the short open water period further increased the radiation levels and a summer population developed which was much less shade adapted. Saturation and photoinhibition effects were widespread during this period as the algae proved unable to utilise high radiation levels efficiently. They were however effective at the radiation fluxes prevalent in the lower part of the rapidly circulating water columns.
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References
Beardall, J. & I. Morris, 1976. The concept of light intensity adaptation in marine phytoplankton. Some experiments with Phaeodactylum tricornutum. Mar. Biol. 6: 377–387.
Bindloss, M. E., 1976. The light climate of Loch Leven, a shallow Scottish Lake, in relation to primary production of phytoplankton. Freshwat. Biol. 6: 501–518.
Goldman, C. R., D. T. Mason & B. J. B. Wood, 1972. Comparative study of the limnology of two small lakes on Ross Island, Antarctica. In G. E. Llano (ed.) Antarctic Terrestrial Biology. Am. Geophys. Un. Antarctic Res. Ser., Wash. 20: 1–50.
Gotham, I. J. & G. Y. Rhee, 1981. Comparative kinetic studies of phosphate-limited growth and phosphate uptake in phytoplankton in continuous culture. J. Phycol. 17: 257–265.
Harris, G. P., 1973. Vertical mixing mechanisms and their effects on primary production of phytoplankton. Scient. Ser. 33: Inld. Wat. Directorate, Can. Cent. inld. Wat., Burlington, Ont., 17 pp.
Harris, G. P., 1978. Photosynthesis, productivity and growth: The physiological ecology of phytoplankton. Ergebn. Limnol. 10: 1–171.
Harris, G. P. & B. B. Piccinin, 1977. Photosynthesis by natural phytoplankton populations. Arch. Hydrobiol. 80: 405–457.
Hawes, I., 1983a. Nutrients and their effects on phytoplankton populations in lakes on Signy Island, Antarctica. Polar Biol. 2: 115–126.
Hawes, I., 1983b. Turbulent mixing and its consequences for phytoplankton development in two ice covered Antarctic lakes. Bull. Br. Antarct. Surv. 60: 69–81.
Hobbie, J. E., 1964. Carbon 14 measurements of primary production in two Arctic Alaskan lakes. Verh. int. Ver. Limnol. 15: 360–364.
Ilmavirta, V., 1982. Dynamics of phytoplankton in Finnish lakes. Hydrobiologia 86: 11–20.
Jewson, D. H., 1976. The interaction of components controlling net phytoplankton photosynthesis in a well-mixed lake (Lough Neagh, Northern Ireland). Freshwat. Biol. 6: 551–576.
Kalff, J. & H. E. Welch, 1974. Phytoplankton production in Char Lake, a natural polar lake and in Meretta Lake, a polluted polar lake, Cornwallis Island, Northwest Territories. J. Fish. Res. B. Can. 31: 621–636.
Light, J. J., 1977. Production and periodicity of Antarctic freshwater phytoplankton. In G. A. Llano (ed.) Adapatations Within Antarctic Ecosystems. 3rd S.C.A.R. Symp. Antarctic Biol., Wash.: 829–837.
Light, J. J., J. C. Ellis-Evans & J. Priddle, 1981. Phytoplankton ecology in an Antarctic lake. Freshwat. Biol. 11: 11–26.
Morris, I. & H. E. Glover, 1974. Questions on the mechanism of temperature adaptation in marine phytoplankton. Mar. Biol. 24: 147–154.
Neori, A. & O. Holm-Hansen, 1982. Effect of temperature on rate of photosynthesis in Antarctic phytoplankton. Polar Biol. 1: 33–38.
Pechlaner, R., 1970. The phytoplankton spring outburst and its conditions in Lake Erken (Sweden). Limnol. Oceanogr. 15: 113–130.
Rigler, F. H., 1978. Limnology in the high Arctic: a case study of Char Lake. Mitt. int. Ver. Limnol. 20: 127–140.
Riley, G. A., 1957. Phytoplankton of the North Central Sargasso Sea. Limnol. Oceanogr. 2: 252–270.
Schindler, D. W. & J. E. Nighswander, 1970. Nutrient supply and primary production in Clear Lake, Eastern Ontario. J. Fish. Res. Bd Can. 27: 2009–2036.
Senft, W. H., 1978. Dependence of light saturated rates of algal photosynthesis on intracellular concentrations of phosphorus. Limnol. Oceanogr. 23: 709–718.
Smith, A. E. & I. Morris, 1980. Pathways of carbon assimilation in phytoplankton from the Antarctic Ocean. Limnol. Oceanogr. 25: 865–872.
Talling, J. F., 1957. Photosynthetic characteristics of some freshwater plankton diatoms in relation to underwater radiation. New Phytol. 56: 29–50.
Talling, J. F., 1971. The underwater light climate as a controlling factor in the production ecology of freshwater phytoplankton. Mitt. int. Ver. Limnol. 19: 214–243.
Tilzer, M. M. & K. Schwarz, 1976. Seasonal and vertical patterns of phytoplankton light adaptation in a high mountain lake. Arch. Hydrobiol. 77: 488–504.
Vincent, W. F., 1981. Production strategies in Antarctic inland waters: Phytoplankton eco-physiology in a permanently ice-covered lake. Ecology 62: 1215–1224.
Vincent, W. F. & C. L. Vincent, 1982. Factors controlling phytoplankton production in Lake Vanda (77° S). Can. J. Fish. aquat. Sci. 39: 1602–1609.
Vollenweider, R. A., 1969. A manual on methods for measuring primary production in aquatic environments. IBP Handbook number 12. Oxford, Blackwell Scientific Publications.
Weller, D. L. M., 1977. Observations on the diet and development of Pseudoboeckella poppei (Calanoida, Centropagidae) from an Antarctic lake. Br. Antarct. Surv. Bull. 45: 77–92.
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Hawes, I. Light climate and phytoplankton photosynthesis in maritime Antarctic lakes. Hydrobiologia 123, 69–79 (1985). https://doi.org/10.1007/BF00006616
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DOI: https://doi.org/10.1007/BF00006616