Object structure

Title:

The effect of sampling frequency and the method of assessment on the production values obtained for several zooplankton species

Subtitle:

Assessment of zooplankton production ; Wpływ częstotliwości pobierania prób oraz metody kalkulacji na wynik oceny produkcji na przykładzie kilku gatunków zooplanktonowych

Creator:

Hillbricht-Ilkowska, Anna ; Węgleńska, Teresa

Contributor:

Polish Academy of Sciences, Institute of Ecology

Publisher:

Państwowe Wydawnictwo Naukowe

Place of publishing:

Warszawa

Date issued/created:

1970

Description:

Pages 539-557 : illustrations ; 24 cm ; Bibliographical references (page 556) ; Abstract in Polish

Subject and Keywords:

freshwater zooplankton ; lakes ; research ; Poland ; Masurian Lakeland

Abstract:

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.

Relation:

Ekologia Polska

Volume:

18

Issue:

27

Start page:

539

End page:

557

Resource Type:

Article

Format:

application/pdf

Source:

MiIZ PAN, call no. P.2840

Language:

eng

Language of abstract:

pol

Rights:

Creative Commons Attribution BY 3.0 PL license

Terms of use:

Copyright-protected material. [CC BY 3.0 PL] May be used within the scope specified in Creative Commons Attribution BY 3.0 PL license, full text available at: ; -

Digitizing institution:

Museum and Institute of Zoology of the Polish Academy of Sciences

Original in:

Library of the Museum and Institute of Zoology of the Polish Academy of Sciences

Projects co-financed by:

Operational Program Digital Poland, 2014-2020, Measure 2.3: Digital accessibility and usefulness of public sector information; funds from the European Regional Development Fund and national co-financing from the state budget.