Kirsten Seestern Christoffersen

2002

Comparing Sensitivity of Ecotoxicological Effect Endpoints between Laboratory and Field

Selck, H., Riemann, B., Christoffersen, K., Forbes, V. E., Gustavson, K., Hansen, B. W., Jacobsen, J. A., Kusk, O. K. & Petersen, S., 2002, In: Ecotoxicology and Environmental Safety. 52, 2, p. 97-112

Research output: Contribution to journal › Journal article › Research › peer-review

42 Citations (Scopus)

Ecology of Five Faroese Lakes: Summary and Synthesis

Jeppesen, E., Christoffersen, K., Malmquist, H., Faafeng, B. & Hansson, L-A., 2002, Five Faroese Lakes: Physico-Chemical and Biological Aspects. Christoffersen, K., Jeppesen, E., Enckell, P. H. & Bloch, D. (eds.). Tórshavn: Føroya Fródskaparfelag, Vol. XXXVI. p. 126-139 (Annales Societatis Scientiarum Færoensis Supplmentum).

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Insekticid påvirkning af planktonsamfund

Friberg-Jensen, U. R. & Christoffersen, K., 2002, In: Vand og Jord. 9, 2, p. 51-55 ill.

Research output: Contribution to journal › Journal article › Research › peer-review

Isdækkets varighed har stor indflydelse på livet i søerne

Christoffersen, K. & Jeppesen, E., 2002, Sne, is og 35 graders kulde. Hvad er effekterne af klimaændringer i Nordøstgrønland?. København: National Environmental Research Institute, p. 79-85

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

Microbial activity and bacterial community structure during degradation of microcystins

Christoffersen, K., Lyck, S. & Winding, A., 2002, In: Aquatic Microbial Ecology. 27, 2, p. 125-136

Research output: Contribution to journal › Journal article › Research › peer-review

147 Citations (Scopus)

Previous Studies of Freshwater Biota in Faroese Lakes

Christoffersen, K., 2002, Five Faroese Lakes: Physico-Chemical and Biological Aspects. Christoffersen, K., Jeppesen, E., Enckell, P. H. & Bloch, D. (eds.). Tórshavn: Føroya Fródskaparfelag, Vol. XXXVI. p. 7-13 (Annales Societatis Scientiarum Færoensis Supplementum).

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Water Chemistry of Five Faroese Lakes

Jensen, J. P., Christoffersen, K., Landkildehus, F., Søndergaard, M., Jeppesen, E. & Bagger, J., 2002, Five Faroese Lakes: Physico-Chemical and Biological Aspects. Christoffersen, K., Jeppesen, E., Enckell, P. H. & Bloch, D. (eds.). Tórshavn: Føroya Fródskaparfelag, Vol. XXXVI. p. 34-38 (Annales Societatis Scientiarum Færoensis Supplementum).

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

2001

A spontaneous mutant of microcystin biosynthesis: genetic characterization and effect on Daphnia

Kabernick, M., Rohrlack, T., Christoffersen, K. & Neilan, B. A., 2001, In: Environmental Microbiology. 3, 11, p. 669-679

Research output: Contribution to journal › Journal article › Research › peer-review

82 Citations (Scopus)

Effects of cell-bound microcystins on survival and feeding of Daphnia spp

Rohrlack, T., Dittmann, E., Börner, T. & Christoffersen, K., 1 Aug 2001, In: Applied and Environmental Microbiology. 67, 8, p. 3523-9 7 p.

Research output: Contribution to journal › Journal article › Research › peer-review

151 Citations (Scopus)

Fate and effects of esfenvalerate in agricultural ponds

Samsøe-Petersen, L., Gutavson, K., Madsen, T., Mogensen, B. B., Lassen, P., Skjernov, K., Christoffersen, K. & Jørgensen, E., 2001, In: Environmental Toxicology and Chemistry. 20, 7, p. 1570-1578

Research output: Contribution to journal › Journal article › Research › peer-review

20 Citations (Scopus)

Fish and crustaceans in northeast Greenland lakes with special emphasis on interactions between Arctic charr (Salvelinus alpinus), Lepidurus arcticus and benthic chydorids

Jeppesen, E., Christoffersen, K., Landkildehus, F., Lauridsen, T., Amsinck, S. L., Riget, F. & Søndergaard, M., 2001, In: Hydrobiologia. 442, p. 329-337

Research output: Contribution to journal › Journal article › Research › peer-review

Lake monitoring

Christoffersen, K. & Jeppesen, E., 2001, Zackenberg Ecological Research Operations, 6th Annual Report, 2000. København: Miljø- og Energiministeriet, p. 45-47

Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

Predation on Daphnia pulex by Lepidurus arcticus

Christoffersen, K. S., 2001, In: Hydrobiologia. 442, 1-3, p. 223-229

Research output: Contribution to journal › Journal article › Research › peer-review

25 Citations (Scopus)

2000

Benthic and pelagic primary production of microalgae in shallow lakes around Zackenberg

Christoffersen, K. & Vadeboncoeur, Y., 2000, Zackenberg Ecological Research Operations, 5th Annual Report, 1999.. Caning, K. & Rasch, M. (eds.). København: Miljø- og Energiministeriet, p. 53-54

Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

Distribution and density of Lepidurus arcticus in ponds and shallow lakes around Zackenberg

Christoffersen, K., 2000, Zackenberg Ecological Research Operations, 5th Annual Report, 1999.. København: Danish Polar Center, p. 55 1 p.

Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

Er blågrønalger et problem i danske søer?

Christoffersen, K., 2000, In: Vand og Jord. 3, p. 104-109 5 p.

Research output: Contribution to journal › Journal article › Research › peer-review

Lake monitoring

Christoffersen, K. & Jeppesen, E., 2000, Zackenberg Ecological Research Operations, 5th Annual Report, 1999.. København: Nyt Nordisk Forlag Arnold Busck, p. 44-46

Research output: Chapter in Book/Report/Conference proceeding › Report chapter › Research

Land-locked Arctic charr (Salvelinus alpinus) population structure and lake morphometry in Greenland - is there a connection?

Riget, F., Jeppesen, E., Landkildehus, F., Lauridsen, T. L., Geertz-Hansen, P., Christoffersen, K. & Sparholdt, H., 2000, In: Polar Biology. 23, p. 550-558

Research output: Contribution to journal › Journal article › Research › peer-review

31 Citations (Scopus)

Short-term effects of linear alkylbenzene sulfonate on freshwater plankton studied under field conditions

Jørgensen, E. & Christoffersen, K., 2000, In: Environmental Toxicology and Chemistry. 4, p. 904-911 7 p.

Research output: Contribution to journal › Journal article › Research › peer-review

16 Citations (Scopus)

Toxic cyanobacteria in New Zealand lakes and toxicity to indigenous zooplankton

Christoffersen, K. & Burns, C. W., 2000, In: Verhandlungen / Internationale Vereinigung für Theoretische und Angewandte Limnologie. 27, 5, p. 3222-3225

Research output: Contribution to journal › Journal article › Research › peer-review

Trophic structure in the pelagial of 25 shallow New Zealand lakes: changes along nutrient and fish gradients

Jeppesen, E., Lauridsen, T. L., Mitchell, S. F., Christoffersen, K. & Burns, C. W., 2000, In: Journal of Plankton Research. 22, p. 951-968 17 p.

Research output: Contribution to journal › Journal article › Research › peer-review

114 Citations (Scopus)

1999

Direct toxic effects of microcystion on survival, growth and fecundicity of Daphnia magna

Thostrup, L. & Christoffersen, K., 1999, In: Fundamental and Applied Limnology. 145, p. 447-467 20 p.

Research output: Contribution to journal › Journal article › Research › peer-review

Lake investigations at Zackenberg

Jeppesen, E., Christoffersen, K., Landkildehus, F., Arboe, N. H., Riget, F. & Søndergaard, M., 1999, In: Zackenberg Ecological Research Operations. 4th Annual Report 1998, p. 43-45

Research output: Contribution to journal › Journal article › Research

Limnological and palaeolimnological studies of lakes in south-western Greenland

Anderson, N. J., Bennike, O., Christoffersen, K., Jeppesen, E., Markager, S., Miller, G. & Renberg, I., 1999, In: Geology of Greenland, Survey Bulletin. 183, p. 68-74

Research output: Contribution to journal › Journal article › Research

1998

Abundance, size, and growth of heterotrophic nanoflagellates in eutrophic lakes with contrasting Daphnia and macrophyte densities

Christoffersen, K., 1998, The Structuring Role of Subnerged Macrophytes in Lakes. New York: Springer, p. 274-281

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Bacterioplankton and Carbon Turnover in a Dense Macrophyte Canopy

Søndergaard, M., Theil-Nielsen, J., Christoffersen, K., Schlüter, L., Jeppesen, E. & Søndergaard, M., 1998, Ecological Studies 131: The Structuring Role of Submerged Macrophytes in Lakes. New York: Springer, p. 250-261

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

Frederiksborg Slotssø

Christoffersen, K., Riemann, B., Jensen, H. J. & Bosselmann, S., 1998, Sørestaurering i Danmark, Miljønyt nr. 28. København: Miljøstyrelsen, p. 159-173

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

Mikrobielle samfund og biologisk kaskade

Christoffersen, K. & Søndergaard, M., 1998, In: Vand og Jord. 6, p. 258-261

Research output: Contribution to journal › Journal article › Research

The Structuring Role of Submerged Macrophytes in Lakes

Jeppesen, E. (ed.), Søndergaard, M. (ed.), Søndergaard, M. (ed.) & Christoffersen, K. S., 1998, New York: Springer. 423 p.

Research output: Book/Report › Book › Research › peer-review

1997

Laboratorie- og Feltprocedurer Limnisk semesterkursus (biologi 1)

Borum, J., Bosselmann, S., Christoffersen, K., Lindegård, P. C., Pedersen, O. & Sand-Jensen, K., 1997, 3 ed. København: Museum Tusculanum. 32 p.

Research output: Book/Report › Compendium/lecture notes

Lake studies

Jeppesen, E. & Christoffersen, K., 1997, Zackenborg Ecological Research Operations, 3rd Annual Report, 1997. København: Danish Polar Center

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research

Measurement of bacterivory by heterotrophic nanoflagellates using immunofluorenscence labelling of ingested cells

Christoffersen, K., Nybroe, O., Jürgens, K. & Hansen, M., 1997, In: Aquatic Microbial Ecology. vol. 13, p. 127-134 7 p.

Research output: Contribution to journal › Journal article › Research › peer-review

Release of Alcaligenes Eutrophus JMP134 and/or nutrients into seawater mesocosms: fate of the introduced cells and effects on the ecosystem

Nybroe, O., Christoffersen, K., Jørgensen, N. O. G., Jensen, I. K. & Ahl, T., 1997, In: Wat. Res.. Vol.31 No.11, p. 2820-2826

Research output: Contribution to journal › Journal article › Research › peer-review

Zooplankton: growth, grazing and interactions with fish

Christoffersen, K. & Bosselmann, S., 1997, Freshwater biology - Priorities and Development in Danish Research. København: Gad, p. 162-182

Research output: Chapter in Book/Report/Conference proceeding › Book chapter › Research › peer-review

1995

A combined microcosm and mesocosm approach to examine factors affecting survival and mortality of Pseudomonas fluorescens Ag1 in seawater

Ahl, T., Christoffersen, K., Riemann, B. & Nybroe, O., 1995, In: FEMS Microbiology Ecology. 17, 2, p. 107-116

Research output: Contribution to journal › Journal article › Research › peer-review

16 Citations (Scopus)

Grazing of non-indigenous bacteria by nano-sized protozoa in a natural coastal system

Christoffersen, K., Ahl, T. & Nybroe, O., 1995, In: Microbial Ecology. 30, p. 67-78

Research output: Contribution to journal › Journal article › Research › peer-review

10 Citations (Scopus)

Specific growth rates of heterotrophic plankton organisms in a eutrphic lake during a spring bloom

Hansen, B. & Christoffersen, K., 1995, In: J. Plankton Research. 17, 2, p. 423-430

Research output: Contribution to journal › Journal article › Research › peer-review

1994

Ecological consequences of food partitioning for the fish population structure in a eutrophic lake

Michelsen, K., Pedersen, J., Christoffersen, K. & Jensen, F., 1994, In: Hydrobiologia. 291, p. 35-45

Research output: Contribution to journal › Journal article › Research › peer-review

17 Citations (Scopus)

1993

Filtration rates of Daphnia cucullata on Alcaligenes eutrophus JMP 134 estimated by a fluorescent antibody method

Kandel, A., Christoffersen, K. & Nybroe, O., 1993, In: FEMS Microbiology Ecology. 12, p. 1-8

Research output: Contribution to journal › Journal article › Research › peer-review

Microbial trophodynamics in temperate lakes

Riemann, B. & Christoffersen, K., 1993, In: Aquatic Microbial Ecology. 7, p. 69-100

Research output: Contribution to journal › Journal article › Research › peer-review

Potential role of fish predation and natural populations of zooplankton in structuring a plankton community in eutrophic lake water

Christoffersen, K., Riemann, B., Klysner, A. & Søndergaard, M., 1993, In: Limnology and Oceanography. 38, p. 561-573

Research output: Contribution to journal › Journal article › Research › peer-review

144 Citations (Scopus)

1992

Survival of Bacillus licheniformis in seawater model ecosystems

Nybroe, O., Christoffersen, K. & Riemann, B., 1992, In: Appl. Env. Microbiol.. 58, p. 252-259

Research output: Contribution to journal › Journal article › Research › peer-review

31 Citations (Scopus)

1990

Qualitative importance of the microbial loop and plankton community structure in a eutropic lake during a bloom of Cyanobacteria

Christoffersen, K., 1990, In: Microbial Ecology. 20, p. 253-272

Research output: Contribution to journal › Journal article › Research › peer-review

91 Citations (Scopus)

Kirsten Seestern Christoffersen

Research output

Search results