Gunnar Nygaard

Gunnar Nygård (12 October 1903 - 25 September 2002) was a Danish phycologist, and a leading authority on the ecology and taxonomy of Danish phytoplankton. Nygaard completed his Masters at University of Copenhagen, initially working at the Freshwater Biological Laboratory in Hillerød as a research stipendiary. From 1933 until his retirement in 1972 he was employed as a lecturer in the Danish grammar school system. Thereafter, he was provided an office at the Freshwater Biological Laboratory to facilitate his work. In recognition of his scientific contributions, the University of Copenhagen awarded him the degree dr. scient. honoris causa [K. Berg (1964). Gunnar Nygaard 60 years old. Hydrobiologia 24: 452-453.] [J. Kristiansen (2003). In memoriam: Gunnar Nygaard (1903-2002). Phycologia, 42: 106-107.] .

Publications

1925. (Ostenfeld C.H. & Nygaard G.). On the phytoplankton of the Gatun lake, Panama Canal. "Dansk Botanisk Arkiv" 4(10): 1-16.

1926. Plankton from two lakes of the Malayan region. "Videnskabelige Meddelelser fra Dansk Naturhistorisk Forming" 82: 197-240.

1929. (Berg K. & Nygaard G.). Studies on the plankton in the Lake of Frederiksborg Castle. "Det Kongelige Danske Videnskabernes Selskabs Skrifter, Naturviden.skabelig og Mathematisk Afdeling" 9 1(4): 227-316.

1932. Contributions to our knowledge of the freshwater algae of Africa. 9. "Freshwater algae and phytoplankton from the Transvaal". Transactions of the Royal Society of South Africa 20(2): 101-148.

1938. Hydrobiologische Studien fiber danische Teiche and Seen. 1. Teil: Chemisch-physikalische Untersuchungen and Planktonwagungen. "Archiv ftir Hydrobiologie" 32: 523-692.

1945. "Dansk planteplankton". Gyldendal, Copenhagen. 52 pp.

1949. Hydrobiological studies on some Danish ponds and lakes. Part 2. The quotient hypothesis and some new or little known phytoplankton organisms. "Det Kongelige Danske Videnskabernes Selskab, Biologiske Skrifter" 7(1): 1-293.

1949. A simple micromanipulator. "Science" 110: 165-166.

1951. How to make permanent fluid mounts of plankton organisms. "Hydrobiologia" 3: 282-289.

1954. A new diatom species and two new varieties from plankton in Lake Taserssuatsiaq. (Appendix to TW. Bother: Oceanic and continental vegetational complexes in Southwest Greenland). Meddelelser om Gronland 148(1): 311-313.

1955. On the productivity of five Danish waters. Proceedings of the International Association of Theoretical and Applied Limnology 12: 123-133.

1956. The ancient and recent flora of diatoms and Chrysophyceae in Lake Gribso. "Folia Limnologica Scandinavica" 8: 32-94.

1956. Phytoplankton. In: Berg K. & Pedersen LC. (eds.): Studies on the humic acid Lake Gribso. "Folia Limnologica Scandinavica" 8: 144.

1958. Produktions- og milieuundersogelser i Fureso. "Folia Limnologica Scandinavica" 10: 97-104.

1958. On the productivity of the bottom vegetation in Lake Grane Langso. "Proceedings of the International Association of Theoretical and Applied Limnology" 13: 144155.

1965. Hydrographic studies, especially on the carbon dioxide system, in Grane Langso. Det Kongelige Danske Videnskabernes Selskab, "Biologiske Skrifter" 14(2): 1110.

1968. On the significance of the carrier carbon dioxide in determination of the primary production in soft water lakes by the radiocarbon technique. "International Association of Theoretical and Applied Limnology, Communications" 14: 11-121.

1976. Desmids from an arctic salt lake. "Botanisk Tidsskrift" 71: 84-86.

1976. "Tavlerne fra "Dansk Planteplankton". Gyldendal, Copenhagen. 26 pp.

1977. Vertical and seasonal distribution of some motile plankton algae in relation to some environmental factors. "Archiv fur Hydrobiologie", supplement 51 (Algological Studies 18): 67-76.

1977. On making fluid mounts of plankton algae. "Phycologia" 16: 351.

1977. New or interesting plankton algae. With a contribution on their ecology. Det Kongelige Danske Videnskabernes Selskab, "Biologiske Skrifter" 21(1): 1-107.

1979. Freshwater phytoplankton from the Narssaq area, South Greenland. "Botanisk Tidsskrift" 73: 191-238.

1981. (Nygaard G. & Sand-Jensen K.). Light climate and metabolism of Nitella flexilis(L.) Ag. in the bottom waters of oligotrophic Lake Grane Langso, Denmark. "Internationale Revue der gesamten Hydrobiologie" 66: 685699.

1987. (Nygaard G., Komarek J., Kristiansen J. & Skulberg 0.). Taxonomic designations of the bioassay alga NIVA-CHLI (`Selenastrum capricornutum') and some related strains. "Opera Botanica" 90: 1-46.

1989. Some observations on the irradiance and carbon fixation in Grane Langso. "Internationale Revue der gesamten Hydrobiologie" 74: 293-319.

1991. Seasonal periodicity of planktonic desmids in oligotrophic Lake Grane Langso, Denmark. "Hydrobiologia" 211: 195-226.

1994. A community of epiphytic diatoms living on low irradiances. "Nordic Journal of Botany" 14: 345-360.

1996. Temporal and spatial development of individual species of plankton algae from European lakes. "Hydrobiologia" 332: 71-91.

1999. Epiphytic diatoms in oligotrophic Lake Grane Langso, Denmark. "Nordic Journal of Botany" 19: 245-255.

2001. "Dansk planteplankton", ed. 3, by Jorgen Kristiansen. Gyldendal, Copenhagen. 36 pp.

References