Inny tytuł:

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

Współtwórca:

Polska Akademia Nauk. Instytut Ekologii

Wydawca:

Oficyna Wydawnicza Instytut Ekologii PAN

Miejsce wydania:

Dziekanów Leśny

Opis:

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

Typ obiektu:

Journal/Article

Abstrakt:

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.

Czasopismo/Seria/cykl:

Wiadomości Ekologiczne

Tom:

46

Zeszyt:

4

Strona pocz.:

267

Strona końc.:

281

Szczegółowy typ zasobu:

Article

Identyfikator zasobu:

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

Źródło:

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

Język:

pol

Język streszczenia:

eng

Prawa:

Creative Commons Attribution BY 3.0 PL license

Zasady wykorzystania:

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: ; -

Digitalizacja:

Museum and Institute of Zoology of the Polish Academy of Sciences

Lokalizacja oryginału:

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

Dofinansowane ze środków:

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.

Dostęp:

Open