Summary
Ice algae in infiltration assemblages were the dominating primary producers in the northwestern Weddell Sea during the austral spring 1988. Band and sub-ice assemblages were encountered at a few stations only. Maximum ice algal biomass measured was 424 μg Chl. a I−1 compared to less than 0.4, μg Chl. a I−1 in the water column. Biomass and nutrient concentrations in the infiltration layer decreased inward from the edge of ice floes. The composition of algal groups indicated that the concentric distribution was due to migration by mobile taxa. Various procedures for melting of ice-containing samples of algae were tested. Melting in dialysis tubing seemed to have advantages over other methods, especially for cells to be used in physiological experiments.
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References
Bianchi F, Cioce F, Dieckmann G, Fenton N, Dimmler W, Meyer K, Nöthig E-M, Nothnagel J, Socal G, Syvertsen EE, Wanzek M (1989) Phytoplankton communities. Ber Polarforsch 62(-89): 117–124
Eicken H, Lange MA, Dieckmann GS (1991) Spatial variability of sea-ice properties in the northwestern Weddell Sea. J Geophys Res 96:10603–10615
Hall RT, Rothrock DA (1987) Photogrammetric observations of the lateral melt of sea ice floes. J Geophys Res 92(c-7):7045–7048
Horner, R (1990) Techniques for sampling sea-ice algae. In: Medlin LK Priddle J (eds) Polar marine diatoms. British Antarctic Survey, Cambridge, 19–23
Horner RA, Syvertsen EE, Thomas DP, Lange C (1988) Proposed terminology and reporting units for sea ice algal assemblages. Polar Biol 8:249–253
Garrison DL, Buck KR (1986) Organism losses during ice melting: a serious bias in sea ice community studies. Polar Biol 6:237–239
Garrison DL, Ackley SF, Buck K (1983) A physical mechanism for establishing algal populations in frazil ice. Nature 306:363–365
Hempel I (1989) The expedition ANTARKTIS VII/1 and 2 (EPOS 1) of R/V “Polarstern” in 1988/1989. Ber Poiarforsch 62
Koroleff F (1976) Determination of ammonia. In: Grasshoff K (ed) Methods of seawater analysis. Verlag Chemie, Weinheim New York, p 126–133
Kottmeier S, Sullivan CW (1990) Bacterial biomass and production in pack ice of Antarctic marginal ice edge zone. Deep Sea Res 37:1311–1330
Kristiansen S, Syvertsen EE, Farbrot T (1992) Nitrogen uptake in the Weddell Sea during late winter and spring. Polar Biol 12:245–257
Larsson AM, Sehlstedt P-I, Ljungek G, Paviglione A (1989) Physical and chemical oceanography. Ber Polarforsch 62(-89):69–71
Lønne OJ (1988) A diver operated electric suction sampler for sympagic (=under ice) invertebrates. Polar Res 6:135–136
Meguro H (1962) Plankton ice in the Antarctic Ocean. Antarct Rec 11:159
Solórzano L (1969) Determination of ammonia in natural waters by the phenolhypochlorite method. Limnol Oceanogr 14:799–801
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Data presented here were collected during the European Polarstern Study (EPOS) sponsored by the European Science Foundation
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Syvertsen, E.E., Kristiansen, S. Ice algae during EPOS, leg 1: assemblages, biomass, origin and nutrients. Polar Biol 13, 61–65 (1993). https://doi.org/10.1007/BF00236584
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DOI: https://doi.org/10.1007/BF00236584