Subtitle:

Eutrofizacja jezior ; Eutrophication of lakes or on the shortcomings of some empirical models and the needfor a coherent concept of this phenomenon

Contributor:

Polska Akademia Nauk. Instytut Ekologii

Publisher:

Oficyna Wydawnicza Instytut Ekologii PAN

Place of publishing:

Dziekanów Leśny

Description:

Pages 267-281 ; 24 cm ; Bibliographical references (pages 278-280) ; Abstract in English

Type of object:

Journal/Article

Abstract:

This paper is aimed at focusing the Reader’s attention to some less considered or neglected aspects of lakę eutrophication. The weakness of the existing chlorophyll-nutrient models is demonstrated here by the apparent uncoupling of chlorophyll and nutrients in the Great Masurian Lakes and also in other lakes of the Polish lowland. The models seem to not recognise sonie specific properties of lakes, which vary along their trophic gradient. The first is a different type of nutrient cycling - dominated by vertical, cyclic and bimodal nutrient transport in eutrophic lakes versus morę conservative nutrient turnover restricted to the epilimnetic zonę and relying mostly on biotic recycling in oligo- and mesotrophic lakes. Secondly, the models do not consider the top-down effects of zooplankton, which in eutrophic lakes tend to reshape the algal structure towards the dominance of non-edible blue-green Cyanobacteria. This, in turn, would enhance accumulation of nutrients in epilimnia of eutrophic lakes and bimodal character of the nutrient turnover. Variable overlapping of abiotic and biotic factors in lakes along their trophic gradient make predictive power of the empirical models poor and calls for further insight and for a coherent theory of lakę eutrophication.

Relation:

Wiadomości Ekologiczne

Volume:

46

Issue:

4

Start page:

267

End page:

281

Detailed Resource Type:

Article

Resource Identifier:

oai:rcin.org.pl:219963 ; 0013-2969

Source:

MiIZ PAN, call no. P.3259 ; click here to follow the link

Language:

pol

Language of abstract:

eng

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.

Access:

Open