Utilization of cyanobacteria by Brachionus calyciflorus: Anabaena flos-aquae (NRC-44-1) as a sole or complementary food source

  • Peter L. Starkweather
  • Penelope E. Kellar
Conference paper
Part of the Developments in Hydrobiology book series (DIHY, volume 14)

Abstract

The rotifer Brachionus calyciflorus can utilize the cyanobacterium Anabaena flos-aquae as either a sole or supplementary food source in laboratory culture. Positive population growth rates accompany food densities of 10 or 100 µg dry weight ml-1, but slightly negative rates are found at a lower density (1.0 µg ml-1). These results are consistent for rotifers feeding on two strains of A. flos-aquae, UTEX-1444 and NRC-44-1, with slightly enhanced survivorship and reproduction with the latter food. A 1:1 mixture (by dry weight) of Euglena gracilis and A. flos-aquae (NRC-44-1) produces survivorship comparable to that of control rotifer cohorts fed E. gracilis alone, but elicits significantly greater fecundity and population growth rates than found with the control food suspension at the same biomass density.

Keywords

rotifers Brachionus feeding population dynamics Anabaena 

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Copyright information

© Dr W. Junk Publishers, The Hague 1983

Authors and Affiliations

  • Peter L. Starkweather
    • 1
  • Penelope E. Kellar
    • 1
  1. 1.Department of Biological SciencesUniversity of NevadaLas VegasUSA

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