scholarly journals The dynamics the quantitative changes of mycoflora in two lakes differing in trophicity (Poland). I.

2014 ◽  
Vol 29 (1) ◽  
pp. 23-31 ◽  
Author(s):  
Teresa Korniłłowicz
Keyword(s):  
Littoral Zone ◽  
Eutrophic Lake ◽  
Saprophytic Fungi ◽  
Mesotrophic Lake ◽  
Annual Changes ◽  
Quantitative Changes

It was demonstrated that the number of saprophytic fungi in the population of plankton in mesotrophic lake changing to eutrophic (Lake Piaseczno) was mountained a similiar level (average values) as in the eutrophic one (Lake Głębokie). The seasonal and annual changes in the number of fungi in the waters of the lake with lower trophicity were markedly stronger than those in the lake with higher trophicity. In the mesotrophic lake this was connected with the intensity of phytoplankton development. The greatest accumulation of fungi occured in the waters of littoral zone in both lakes and in the pelagial metha- and hypolimniun of the Lake Piaseczno.

scholarly journals The changes in the number and physiological properties of fungi in lakes differing in trophicity

2014 ◽  
Vol 29 (1) ◽  
pp. 33-42 ◽  
Author(s):  
Teresa Korniłłowicz
Keyword(s):  
Littoral Zone ◽  
Eutrophic Lake ◽  
Frequency Of Occurrence ◽  
Mesotrophic Lake ◽  
Physiological Properties ◽  
Lake Waters

U was demonstrated that the fungi decomposing protein were most abundant in tbe mesotrophic lake, whereas the fungi decomposing pectin dominated in the eutrophic lake. The accumulation of fungi mineralizing protein in littoral zone (metha- and hypolimnion of pelagial zone) of the mesotropbic lake indicated the increase in the fertility of this reservoir. The frequency of occurrence of physiologically differentiated mycoflora in the lake waters was seasonal and revealed fluctuations in their activity depending on the year of the study. These fluctuations were stronger in the mesotrophic lake.

scholarly journals The dynamics of quantitative changes of mycoflora in two lakes differing in trophicity (Poland). II

2014 ◽  
Vol 29 (2) ◽  
pp. 159-168 ◽  
Author(s):  
Teresa Korniłłowicz
Keyword(s):  
Organic Matter ◽  
Soil Organic Matter ◽  
Filamentous Fungi ◽  
Surface Waters ◽  
Littoral Zone ◽  
Eutrophic Lake ◽  
Early Summer ◽  
Yeast Fungi ◽  
Quantitative Changes ◽  
Minimum Numbers

It was demonstrated that waters of the mesotrophic lake undergoing accelerated eutrophication had a higher number of yeast fungi in comparison with the waters of an eutrophic lake. The greatest concentration of yeasts occurred in the littoral zone supplied with soil organic matter as well as in the waters of metha- and hypolimnion distinguished by a high pbytoplankton activity Filamentous fungi concentrated most numerously in the coastal and surface waters of both lakes. However. they did not show any distinct relationship with the trophicity of the reservoir. The maximum numbers of yeasts and geophilic moulds was mainly noted in spring whereas as minimum numbers occurred in early summer.

Effects of restoration of emergent macrophytes on the benthic environment of the littoral zone of a eutrophic lake

2020 ◽  
Vol 155 ◽  
pp. 105960
Author(s):  
Megumu Fujibayashi ◽  
Fumiaki Takakai ◽  
Shuhei Masuda ◽  
Kunihiro Okano ◽  
Naoyuki Miyata
Keyword(s):  
Littoral Zone ◽  
Eutrophic Lake ◽  
Emergent Macrophytes ◽  
Benthic Environment

Comparison of gastrotrich fauna on elodeids and in bottom sediments of lakes of different trophic status (the region Polesie Lubelskie, Eastern Poland)

2011 ◽  
Vol 40 (2) ◽  
Author(s):  
Teresa Nesteruk
Keyword(s):  
Species Diversity ◽  
Bottom Sediment ◽  
Bottom Sediments ◽  
Trophic Status ◽  
Vegetation Type ◽  
Eutrophic Lake ◽  
Diversity Indices ◽  
Eutrophic Lakes ◽  
Epiphytic Fauna ◽  
Mesotrophic Lake

AbstractSpecies diversity of gastrotrich communities on elodeids and in bottom sediments of lakes of different trophic status was compared. Thirty-eight species of Gastrotricha (34 in bottom sediment and 21 on elodeids) were found, which belong to the only family of Chaetonotidae Zelinka, 1889. Species diversity of both habitats was reflected in the diversity indices ranging from 2.02 (a dystrophic lake) to 2.67 (a strongly eutrophic lake) for bottom sediment, and from 2.01 (a mesotrophic lake) to 2.54 (a strongly eutrophic lake) for elodeids. The similarity of gastrotrich fauna from the two habitats was low, and varied from 17% (a mesotrophic lake) to 38% (a strongly eutrophic lake). Low similarity of elodeid fauna from lakes of different trophic status was also found, in spite of similar plant species composition. The lowest similarity in elodeid fauna (23%) was recorded for dystrophic and mesotrophic lakes, whereas the highest one (68%) was observed for eutrophic and strongly eutrophic lakes. That allows to conclude that the diversity of epiphytic fauna is affected by trophic status rather than by vegetation type. The comparison of the gastrotrich fauna from elodeids and bottom sediments in lakes of different trophic status provides additional autoecological characteristics of Heterolepidoderma ocellatum (Mečnikow, 1865) and allows to recognize this species as belonging to a group of species closely related to macrophytes.

scholarly journals Changes in species composition and physiological activity of fungi associations in two lakes, differing in trophicity

2014 ◽  
Vol 30 (2) ◽  
pp. 233-253
Author(s):  
Teresa Korniłłowicz
Keyword(s):  
Species Composition ◽  
Bottom Sediments ◽  
Physiological Activity ◽  
Eutrophic Lake ◽  
Cladosporium Herbarum ◽  
Mesotrophic Lake

The results of the present study indicated differences in species composition and physiological activity of saprophytic mycoflora between two lakes: mesotrophic lakę with accelerated eutrophication and an eutrophic one. In waters of the lake with lower trophicity the most frequently occurring species were <i>Hyalodendron</i> sp. and <i>Verticilliun lecani. These fungi prevailed in the total mycoflora and mycoflora decomposing proteins. The waters of the lake with higher trophicity are dominated by the population of V. lecani<,i>, which was proteolitically and pectinolytically active. In bottom sediments the following ubiquistic species were most common: <i>Cladosporium herbarum</i> (mesotrophic lake) and <i>Cephalosporium roseum</i> ( eutrophic lake).

scholarly journals Horizontal Distribution of Psammonic Ciliates in Two Lakes of Different Trophic Status: Relationship to Physical and Chemical Parameters

2012 ◽  
Vol 38 (2) ◽  
pp. 55-70
Author(s):  
Tomasz Mieczan ◽  
Dorota Nawrot
Keyword(s):  
Trophic Status ◽  
Eutrophic Lake ◽  
Horizontal Distribution ◽  
Chemical Parameters ◽  
Eutrophic Lakes ◽  
Water Parameters ◽  
Mesotrophic Lake ◽  
Physical And Chemical Parameters ◽  
Physical And Chemical ◽  
Chemical Water

Horizontal Distribution of Psammonic Ciliates in Two Lakes of Different Trophic Status: Relationship to Physical and Chemical ParametersThe aims of this study were to identify the taxonomic diversity and abundance of psammonic ciliate communities in mesotrophic and eutrophic lakes (Łęczna-Włodawa Lakeland, eastern Poland). The effect of selected physical and chemical water parameters on ciliates community was also analysed. Psammon samples were collected during three seasons: spring, summer and autumn of 2010. In each lake, in the psammolittoral, samples were collected in the euarenal, higroarenal, and hydroarenal zones. A total of 53 ciliate taxa were recorded. The highest value of the Shannon-Weaver index was recorded in summer in eutrophic lake (2.79). At the same time in mesotrophic lake, a lower value of the index was determined (0.79). The mean numbers of ciliates ranged from 516 ind.cm-3in the eutrophic lake to 191 ind. cm-3in the mesotrophic lake. In eutrophic lake, the highest number of ciliates was recorded in the euarenal (649 ind. cm-3), and the lowest in the higroarenal (425 ind. cm-3). In the mesotrophic lake, the highest average numbers were determined in the higroarenal (235 ind. cm-3), and the lowest in the hydroarenal (155 ind. cm-3). Irrespective of the lake trophy, Hymenostomata (Paramecium sp., Glaucoma sp., Uronema nigricans) occurred in the highest numbers (from 13 to 95%). The results demonstrated that N-NH4, P-PO4and TOC can strongly regulate the abundance and taxonomic composition of ciliates. The strongest correlations between numbers of ciliates and physical and chemical water parameters were observed in the higro- and hydroarenal zones of the eutrophic lake.

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