Metadata language
Eutrofizacja jezior ; Eutrophication of lakes or on the shortcomings of some empirical models and the needfor a coherent concept of this phenomenon
Creator: Contributor:Polska Akademia Nauk. Instytut Ekologii
Publisher:Oficyna Wydawnicza Instytut Ekologii PAN
Place of publishing: Date issued/created: Description:Pages 267-281 ; 24 cm ; Bibliographical references (pages 278-280) ; Abstract in English
Type of object: Subject and Keywords:ekologia jezior ; eutrofizacja jezior ; fitoplankton ; zooplankton ; Wielkie Jeziora Mazurskie ; biomasa glonów
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: Volume: Issue: Start page: End page: Resource type: Detailed Resource Type: Resource Identifier: Source:MiIZ PAN, call no. P.3259 ; click here to follow the link
Language: Language of abstract: 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
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