Subtitle:

Spatial variability and long-term changes in lakes

Contributor:

Polish Academy of Sciences. Institute of Ecology

Publisher:

Polish Academy of Sciences. Institute of Ecology. Publishing Office

Place of publishing:

Dziekanów Leśny

Description:

Pages 323-333 : illustrations ; 27 cm ; Bibliographical references (pages 332-333)

Type of object:

Journal/Article

Abstract:

Hydrologic division of the Great Masurian Lakes (North-eastern Poland) into the northern and southern drainage basin was found to be reflected in different trophic status of lakes. Chlorophyll (but not nutrient) concentrations in the northern part of the system were significantly lower than those in lakes of the southern part. It has been shown that tunnel-valley lakes (numerous in the southern watershed) appear to be more eutrophied in terms of chlorophyll abundance than morainic stratified lakes. Hypolimnetic enrichment and internal loading were probably responsible for the lack of in-lake phosphorus and chlorophyll decline in spite of the evident decrease of the external nutrient loading which had taken place between 1985 and 1996. Such a positive response was observed, however,in the case of nitrogen. Only in a hypertrophic Lake Niegocin some symptoms of recovery were noted after reduction of external point source pollution.

References:

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Gliwicz Z. M., Kowalczewski A. 1981 - Epilimnetic and hypolimnetic symptoms of eutrophication in Great Masurian Lakes, Poland - Freshwater Biology, 11: 425-433.
Golterman H. L. 1969 - Methods for chemical analysis of fresh waters - Blackwell Scientific Publications, Oxford and Edinburgh, 172 pp.
Hillbricht-Ilkowska A. 1993 - Phosphorus loading to lakes of Suwałki Landscape Park (north-eastern Poland) and its relation to lake trophy indices - Ekol. Pol., 41: 221-235.
Kufel L. 1998 - Chlorophyll - nutrients - Secchi disc relationships in the Great Masurian Lakes (north-eastern Poland) - Pol. J. Ecol., 46: 327-337.
Mazumder A. 1994a - Phosphorus-chlorophyll relationships under contrasting herbivory and thermal stratification: predictions and patterns - Can. J. Fish. Aquat. Sci., 51: 390-400.
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Reynolds C. S. 1992 - Eutrophication and the management of planktonic algae: what Vollenweider couldn't tell us. In: D. W. Suttcliff and J. G. Jones (Eds) Eutrophication: research and application to water supply - Freshwater Biological Association, 4-29.
Sas H. 1989 - Lake restoration by reduction of nutrient loading: expectations, experiences, extrapolations - Academia Verlag, Richarz, St. Augustin, 497 pp.
Scheffer M. 1998 - Ecology of shallow lakes - Chapman & Hall, London, Weinheim, New York, 357 pp.
Solórzano L. 1969 - Determination of ammonia in natural waters by the phenylhypochlorite method - Limnol. Oceanogr., 14: 799-800.
Vollenweider R. A. 1976 - Advances in defining critical load levels for phosphorus in lake eutrophication - Mem. Ist. Ital. Idrobiol., 33: 53-83.
Zdanowski B., Hutorowicz A. 1994 - Salinity and trophy of Great Masurian Lakes (Masurian Lakeland, Poland) - Ekol. Pol., 42: 317-331.

Relation:

Polish Journal of Ecology

Volume:

47

Issue:

3

Start page:

323

End page:

333

Detailed Resource Type:

Article

Resource Identifier:

oai:rcin.org.pl:106125 ; ISSN 1505-2249

Source:

MiIZ PAN, call no. P.2840 ; click here to follow the link

Language:

eng

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

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