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1

Meromictic Lake Czarne in the Drawienski National Park

100%
Kraska M., Klimaszyk P., Piotrowicz R.
Oceanological and Hydrobiological Studies
|
2006
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tom 35
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nr 1
2

Hydrochemical properties, bacterioplankton abundance and biomass in the meromictic Lake Starodworskie in 2004

84%
Tandyrak R., Parszuto K., Gorniak D., Kosnik P.
Oceanological and Hydrobiological Studies
|
2009
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tom 38
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nr 4
127-133
3

Limnological study of a lake formed in limestone quarry [Krakow, Poland]. I. Zooplankton community

84%
Slusarczyk A.
Polish Journal of Environmental Studies
|
2003
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tom 12
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nr 4
The zooplankton of a meromictic lake, in a former limestone quarry situated in southern Poland, was studied monthly in the years 2000-2001. A low density and diversity of zooplankton assemblage was noted. Individuals of the dominant species Daphnia longispina represented all body size classes and were present during the whole study period; the maximum number of Daphnia females carrying the eggs was noted in May. The normal dial vertical migration of Daphnia, studied in June, was observed.
4

Optical characteristics of humic acids from bottom sediments of lakes with different mictic types

84%
Golebiowska D., Osuch M., Mielnik L., Bejger R.
Electronic Journal of Polish Agricultural Universities. Series Environmental Development
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2005
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tom 08
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nr 2
Optical properties of humic substances (HS) from bottom sediments of two dimictic and meromictic lakes with similar depth (25 m and 29 m) and different thermal circulation and oxygen condition of their water were carried out. Dimictic Marta Lake (ML) and meromictic Czarne Lake (CL) are situated not wide apart, in Drawno National Park, North Poland. Optical analysis: differences UV-VIS - absorption spectra and fluorescence emission spectra were analysed for characterisation of humic acids (HA). HA were taken from bottom sediments of three thermal zones of lakes. All HA from profundal bottom sediments have a bigger UV absorption than HA from littoral. They testify lower degree of oxidative transformation of HA from profundal zone. It was assumed that fluorescence yield of HA from profundal of CL is a few times bigger, than this from profundal of ML. In all humic acids (HA) from profundal zone chromofor (l = 405 nm) and fluorofor (l = 480 nm) originated probably from reduced cytochrom c structure is present. Humic acids molecules are characterised by some exciting and emission centers, which testify their possibility of intermolecular transfer of energy. Coefficients (Kf=IFL/A) proportional to FL yield were calculated. Observed difference of fluorescence yield level indicates the presence of a few time more fluorescent centers in HA from profundal of meromictic than dimictic lake.
5

Vertical distribution of benthic macroinvertebrates in a meromictic lake (Lake Czarne, Drawienski National Park)

67%
Klimaszyk P., Heymann D.
Oceanological and Hydrobiological Studies
|
2010
|
tom 39
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nr 4
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