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  • 1980-1984  (5)
  • 1983  (5)
Document type
Publisher
Years
  • 1980-1984  (5)
Year
  • 1
    Electronic Resource
    Electronic Resource
    Algal nutrient competition in continuous culture (1983)
    Springer
    Aquatic ecology 17 (1983), S. 21-27 
    Details
    ISSN: 1573-5125
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology
    Notes: Summary Natural phytoplankton from Lake Constance was exposed to competition experiments in continuous culture at 6 different molar rations of P∶Si as potentially limiting nutrients. As predicted by theory there was competitive exclusion of all species but one at single nutrient limitation, and coexistence of two species in steady state when P was limiting for one and Si for the other species. In one case coexistence of three species occurred. Equilibrium species composition, which stabilized after 3 to 6 weeks of cultivation, was independent of the species composition of the inoculum and only controlled by the nutrient regime. Comparability of experimental results and field observations is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02255189
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    Paper (German National Licenses)
    Fulltext
  • 2
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    Silicon consumption and population density changes of dominant planktonic diatoms in Lake Constance (1983)
    British Ecological Society
    In:  Journal of Ecology, 71 . pp. 119-130.
    Details
    Publication Date: 2017-07-04
    Description: (1) Interactions between silicon concentration and diatom growth have been studied in Lake Constance with data on number and volume of cells per unit volume of water and concentration of dissolved reactive silicon. (2) Concentration of dissolved reactive silicon was found to decrease markedly during the spring and summer growth period of diatoms in 1979 and 1980. (3) Amounts of silicon taken up per cell and per unit cell volume have been calculated from the changes in silicon concentration and the increases in population density for several diatom species. The silicon to cell quotient (mg per million cells) varied over a wide range from 0.005 for Stephanodiscus hantzschii to 0.72 for Synedra acus, while that of silicon per unit cell volume (mg mm-3) varied over a narrower range from 0. 10 for Stephanodiscus hantzschii and Fragilaria crotonesis to 0.36 for Synedra acus. (4) A four-compartment model, that allows estimates of the rates of growth and of loss of diatom populations to be calculated, is outlined. (5) Summer succession from Asterionellaformosa to either Fragilaria crotonensis (in 1979) or Stephanodiscus binderanus (in 1980) is explained by interspecific differences in the effects of silicon concentration on growth and death. For Asterionellaformosa, silicon depletion did not stop cell-division but led to the death of most of the population. For Fragilaria crotonensis and Stephanodiscus binderanus cell division stopped but cells did not die and population growth continued after the concentration of dissolved silicon had increased again
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 3
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    Algal nutrient competition in continuous culture (1983)
    Springer
    In:  Hydrobiological Bulletin, 17 (1). pp. 21-27.
    Details
    Publication Date: 2018-07-02
    Description: Natural phytoplankton from Lake Constance was exposed to competition experiments in continuous culture at 6 different molar rations of PratioSi as potentially limiting nutrients. As predicted by theory there was competitive exclusion of all species but one at single nutrient limitation, and coexistence of two species in steady state when P was limiting for one and Si for the other species. In one case coexistence of three species occurred. Equilibrium species composition, which stabilized after 3 to 6 weeks of cultivation, was independent of the species composition of the inoculum and only controlled by the nutrient regime. Comparability of experimental results and field observations is discussed.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1007/BF02255189
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 4
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    Light, stratification and zooplankton as controlling factors for the spring development of phytoplankton in Lake Constance (1983)
    Birkhäuser
    In:  Schweizerische Zeitschrift für Hydrologie, 45 (2). pp. 394-404.
    Details
    Publication Date: 2020-05-28
    Description: The patterns of phytoplankton growth and decline during the spring bloom and the following clear-water phase in Lake Constance have been studied on the basis of cell counts with short-term sampling intervals and related to light climate, stratification and zooplankton pressure.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1007/BF02538129
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    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 5
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    Nutrient competition between phytoplankton species in multispecies chemostat experiments (1983)
    Schweizerbart
    In:  Archiv für Hydrobiologie, 96 . pp. 399-416.
    Details
    Publication Date: 2016-05-26
    Type: Article , PeerReviewed
    Format: text
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    OceanRep: Article in a Scientific Journal - peer-reviewed
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