Tytuł pozycji:
Assessment of zooplankton production
Bibliographical references (page 556)
Pages 539-557 : illustrations ; 24 cm
Strony 539-557 : ilustracje ; 24 cm
Streszczenie w języku polskim
Abstract in Polish
Together with a decreasing sampling frequency the variability of calculated values of production and biomass of three species (Eudiaptomus graciloides, Daphnia cucullata, Keratella cochlearis) increase in comparise to the value obtained on the basis of very frequently taken samples, i.e. everyday. Especially great deviations are noticed, when the sampling interval is longer than 6 days. Assessments of production and biomass on the basis of the mean parameters for the given sampling interval give less variable values as compared with the values calculated on the basis of initial parameters. An effect of the character of population dynamics on the relation "calculated production values - sampling frequency" was noticed. The production values of rotifers calculated according to the three different methods were compared.
Bibliografia na stronie 556