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1

Quality of the dissolved organic matter [DOM] in the water of Lake Wigry [spectrophotometric analysis]

100%
Dunalska J., Zdanowski B.
Polish Journal of Natural Sciences
|
2004
|
tom 16
214-221
2

Assemblages of Chironomidae larvae in the Hanczanska Bay [Lake Wigry]

100%
Jablonska I., Koszalka J.
Natural Sciences
|
2000
|
tom 05
3

Lake Wigry - the lake adopted by international association of theoretical and applied limnology [SIL Lake Adoption Project]

100%
Kaminski M.
Polish Journal of Ecology
|
1999
|
tom 47
|
nr 2
4

Age and growth of vendace, Coregonus albula (L.), from Lake Wigry (northeast Poland)

84%
Kozłowski K., Kozlowski J., Poczyczynski P., Martyniak A.
Archives of Polish Fisheries
|
2010
|
tom 18
|
nr 4
5
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Content available

Freshwater molluscs of the Wigry National Park

84%
Kolodziejczyk A.
Folia Malacologica
|
1999
|
tom 07
|
nr 4
6

Littoral malacofauna of the Wigry Lake

84%
Kolodziejczyk A.
Folia Malacologica
|
1998
|
tom 06
|
nr 1-4
7

Evaluation of pollution and the sanitary-bacteriological state of Lake Wigry, Poland. Part I. Pelagic waters of Lake Wigry

84%
Niewolak S.
Polish Journal of Environmental Studies
|
1999
|
tom 08
|
nr 2
8

Morphologic variability of Dinophyceae from the genus Ceratium in a mesotrophic lake Wigry [Poland]

84%
Hutorowicz A.
Polish Journal of Ecology
|
2000
|
tom 48
|
nr 1
9

Leeches of the littoral part of Lake Wigry, Northeastern Poland

84%
Jablonska-Barna I., Koszalka J., Bielecki A.
Bulletin of the Sea Fisheries Institute
|
2004
|
nr 3
10

Bacteriological monitoring of river water quality in the north area of Wigry National Park

84%
Niewolak S.
Polish Journal of Environmental Studies
|
2000
|
tom 09
|
nr 4
The paper comprises the results of examination of the number of indicatory bacteria of pollution degree (TVC 20°C, TVC 37°C) and sanitary state (TC, FC, FS) in the water of the Kamionka, Maniówka, Wiatrołuża and Piertanka Rivers in the north area of Wigry National Park in 1996 and the number of these microorganisms taken to Wigry Lake. The investigations were carried out at 3 sites situated on the Kamionka River (in Okuniowiec, below a group of "huciańskie" lakes, before the tributary to Pierty Lake), at 2 sites situated on the Maniówka River (in Lipniak and before the mouth to the Wiatrołuża River), at 5 sites on the Wiatrołuża River (in Wiatrołuża, above and below the estuary of the Maniówka River, at the mouth to Królówek Lake, between Królówek Lake and Pierty Lake) and at 1 site situated on the Piertanka River (between Omułówek Lake and Wigry Lake). The obtained values of bacteriological indices of pollution degree and sanitary state were compared with the criteria of surface water purity estimation suggested in literature and their usefulness for recreation. The number of the examined indicator bacteria found in the present research shows a significant water pollution (II and III class of purity) of the examined rivers in the region of rural areas and the improvement of purity degree along the river course. There were found leakages of pollution from cesspools in the rural areas (it is seen by a significant number of FC in water of given sites) and flows from other arable-forestry-pasture-meadow catchment (which is expressed by a larger number of Streptococci than Escherichia coli) as a main source of water pollution of the examined rivers.
11

Escherichia coli and other groups of opportunistically pathogenic and pathogenic bacteria in the offshore water of the Lake Wigry

84%
Korzeniewska E.
Archiwum Ochrony Środowiska
|
2005
|
tom 31
|
nr 2
12

Evaluation of pollution and the sanitary-bacteriological state of Lake Wigry, Poland. Part II. Near-shore waters of Lake Wigry

84%
Niewolak S.
Polish Journal of Environmental Studies
|
1999
|
tom 08
|
nr 3
13

Interspecific hybridization in sympatric species of Daphnia inhabiting lakes in Northeastern Poland

67%
Brzezinski T., Fronk J., Trzcinska-Danielewicz J., Dawidowicz P.
Oceanological and Hydrobiological Studies
|
2012
|
tom 41
|
nr 2
14

Carotenoid content in pre-spawning smelt [Osmerus eperlanus L.], a planktivore from Lake Wigry [North-East Poland]

67%
Czeczuga B., Klyszejko B., Czeczuga-Semeniuk E.
Acta Scientiarum Polonorum. Piscaria
|
2005
|
tom 04
|
nr 1-2
15

The evaluation of the degree of pollution and sanitary-bacteriological state of surface water in Wigry Lake, North-East Poland. Part III. Waters of Hanczanska Bay and the areas adjoing Wigry Lake

67%
Niewolak S.
Polish Journal of Environmental Studies
|
2001
|
tom 10
|
nr 3
This work comprises the results of examinations of a number of indicator bacteria on the degree of pollution (TVC 20°C, TVC 37°C), sanitary state (TC, FC, FS), and usefulness for recreation of Hanczanska Bay and areas adjoining Wigry Lake. Adequate studies were made in 1997, a year after the start of 3rd degree sewage treatment in the Wastewater Treatment Plant in Suwalki. All of these bacteria in general were more numerous in the water of Hanczanska Bay, especially in spring-summer. In the waters of northern Ploso of Wigry Lake numbers of bacteria were only periodically numerous at some water samples. The highest percentage of pure water samples fulfilling the requirement for bathing waters was found at sites on the border between Hanczanska Bay and the waters of Northern Ploso of Wigry Lake; the lowest percentage was found at sites in Hanczanska Bay. Gradual decrease of TVC 20°C ( sometimes 37°C) with the distance from the mouth of the Czarna Hancza River towards south-east sites shows this direction of the movement of main water masses of the Czarna Hancza River. No significant differences in percentage of unpolluted water samples stated in Hanczanska Bay and areas adjoing Wigry Lake with a comparison of data from 1994-1996 years of investigation.
16

The domination and constancy of occurrence of invertebrate communities in the Hanczanska Bay, Lake Wigry, NW Poland

67%
Jablonska I., Paturej E.
Acta Hydrobiologica
|
1999
|
tom 41
|
nr Suppl.6
17

Precipitation of phosphorus in the zone of river and lake water mixing: R. Hancza and Lake Wigry [North-East Poland]

67%
Zdanowski B.
Polish Journal of Ecology
|
2003
|
tom 51
|
nr 2
Studies on physico-chemical parameters of water in Czarna Hancza River and lakes Hancza and Wigry (North-East Poland) were carried out in 1991-1994 i.e. in the period of maximal pollution of this river-lake system. Basic information were obtained enabling explanation of high resistance of Lake Wigry to eutrophication. It was shown that co-precipitation of phosphates on calcite in the ecotone zone of Hanczanska Bay, where river waters mixed with lake waters, was an important process. Sedimentation of these substances in this lake part resulted in lower lake loading with phosphorus by as much as about 50%. The mechanisms were operating most of all during the vegetation season, when water pH exceeded 8.3. Availability of phosphorus to phytoplankton depended also on phosphate release from bottom sediments. The lowest rate of this release was observed in Hanczanska Bay. On the other hand, in autumn and winter the increase of organic matter decomposition and lowering of water pH enabled free spreading of pollutants over the whole lake.
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