Zooplankton Production

  • Robert G. Wetzel
  • Gene E. Likens


Most zooplankton, and some benthic animals, reproduce continuously. As a population changes by addition and growth over a given time interval, a demographic turnover occurs [see reviews of Edmondson (1974) and Rigler and Downing (1984)]. Few, if any, of the individuals present at the peak of an exponentially developing population were alive at the beginning of the exponential phase. An individual also undergoes a biochemical turnover during its lifetime so that, upon completing a mean lifespan, it will have assimilated several times its final mass.


Size Category Stratify Lake Daphnia Population Zooplankton Production Continuous Reproduction 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Edmondson, W.T. 1974. Secondary production. Mitt. Int. Ver. Limnol. 20:229–272. Edmondson, W.T. and G.G. Winberg (eds). 1971. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. IBP Handbook 17. Blackwell, Oxford. 358 pp.Google Scholar
  2. Haney, J.F. and D.J. Hall. 1973. Sugar-coated Daphnia: A preservation technique for Cladocera. Limnol. Oceanogr. 18: 331–333.Google Scholar
  3. Likens, G.E. and J.J. Gilbert. 1970. Notes on quantitative sampling of natural populations of planktonic rotifers. Limnol. Oceanogr. 15: 816–820.Google Scholar
  4. Prepas, E. 1978. Sugar-frosted Daphnia: An improved fixation technique for Cladocera. Limnol. Oceanogr. 23:557–559.Google Scholar
  5. Rigler, F.H. and J.A. Downing. 1984. The calculation of secondary productivity. pp. 19–58. In: J.A. Downing, and F.H. Rigler, Editors. A Manual on Methods for the Assessment of Secondary Productivity in Fresh Waters. 2nd Ed. Blackwell, Oxford.Google Scholar
  6. Winberg, G.G. (ed.) 1972. Methods for the Estimation of Production of Aquatic Animals. Academic Press, New York. 175 pp.Google Scholar

Copyright information

© Springer Science+Business Media New York 1991

Authors and Affiliations

  • Robert G. Wetzel
    • 1
  • Gene E. Likens
    • 2
  1. 1.Department of Biology, College of Arts and SciencesUniversity of AlabamaTuscaloosaUSA
  2. 2.Institute of Ecosystem StudiesThe New York Botanical Garden, Cary ArboretumMillbrookUSA

Personalised recommendations