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Field Investigations and Model Simulation of the Dynamics of Zooplankton Populations in Fresh Waters
Author(s) -
Horn Wolfgang,
Benndorf Jürgen
Publication year - 1980
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19800650204
Subject(s) - zooplankton , field (mathematics) , environmental science , ecology , dynamics (music) , population , oceanography , biology , physics , mathematics , geology , demography , sociology , pure mathematics , acoustics
The main parameters characterizing the dynamics of a population were determined by field investigations at the Saidenbach reservoir and by means of an ecological model. The results obtained by both methods involving totally different procedures were in good agreement. The gross growth rates obtained by both methods ranged up to 0.14 d −1, and the net growth rates vary between 0.1 d −1 and 0.2 d −1 . Field investigations revealed zooplankton mortality rates during summer of about 0.1 compared with 0.08 d −1 for the model. Comparison of the two methods shows how practical investigations may be improved and gives a better insight into the dynamics of zooplankton populations in waters.