Polish Rivers as Hydrographic Objects

Bajkiewicz-Grabowska, Elżbieta; Markowski, Maciej; Golus, Włodzimierz

doi:10.1007/978-3-030-12123-5_2

Cited by 5 publications

(3 citation statements)

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“…The Vistula and the Odra are the two major rivers in Poland and show distinct features. For instance, the Vistula River has twice as much carrying capacity of bed and suspended load as the Odra River (Bajkiewicz‐Grabowska et al, 2020). The Odra and Vistula catchments were analysed separately as they drain almost 90% of Poland.…”

Section: Methodsmentioning

confidence: 99%

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Regionalization strategy affects the determinants of fish community structure

et al. 2022

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Freshwater bioassessment programmes yield valuable information for assessing the diversity and distribution of freshwater organisms and can be related to environmental variables through the use of multivariate methods. Regionalization and subsetting strategies are widely used in this regard, but the effects on the discerned relationships are largely unexplored. In this paper, we used a partial redundancy analysis (pRDA) to investigate the influence of different environmental variables on (i) fish community structure, (ii) the explanatory power of spatial and environmental variables, and (iii) ranking of the most relevant variables for the fish community structure in Poland. We performed the analysis at the national level and for different regionalization/subsetting strategies based on hydrography (coarse resolution: river basins, fine resolution: water regions), topography, biogeography and fish‐based river typology. Depth, slope and sediment type were three most relevant predictors at the national level and for the majority of subsets. However, compared to the national level, a significant misalignment in predictors rankings was found for a large fraction of the identified subsets. Overall, river basin subsetting provided limited gain in information compared to the national level, while water region subsetting yielded higher variability in the predictive capacity of the pRDA models and increased the share of variance explained by spatial pattern which might obscure environmental effects. Thus, it is recommended to use biotic relevant subsetting methods based on elevation or fish indicators to better capture the variability of the dataset and provide simple and informative relationships between the fish community structure and the environmental variables.

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Section: Methodsmentioning

confidence: 99%

“…Bajkiewicz-Grabowska et al, 2020). The Odra and Vistula catchments were analysed separately as they drain almost 90% of Poland.Three classes were used as elevation zones: below 200 m a.s.l.…”

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confidence: 99%

Regionalization strategy affects the determinants of fish community structure

et al. 2022

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“…Other important elements of the hydrographic system of WNP and the Wigry Lake include nearby lakes, small streams, springs, groundwater, and precipitation. The average water change rate in the lake is about 3 years and is different for each of the main parts (basins) of the lake, due to their diversified morphometry [16,[70][71][72][73][74][75][76][77].…”

Section: Specification Of the Study Areamentioning

confidence: 99%

History of Environmental and Climatic Changes Recorded in Lacustrine Sediments—A Wigry Lake Case Study

Kostka

2023

Sustainability

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Wigry Lake represents one of the most beautiful and valuable postglacial lakes that is located in the north-eastern part of Poland. It has been an object of scientific interest for over a century, but the most intense period of research started in 1997 and resulted in the production of numerous papers of a multidisciplinary range. The lake is especially well analyzed in terms of its sediments, which were studied using geophysical methods and using traditional lake cartography based on the sampling of sediments and their geochemical characterization. Nearly two decades of research has resulted in the extraction of over 1200 sediment samples, which facilitated the analysis and the description of five main sediment types that can be found at the bottom of Wigry Lake, i.e., carbonate gyttja, lacustrine chalk, clastic sediment, fluvial-lacustrine sediment, and organic gyttja. A very thorough vertical as well as spatial examination of Wigry Lake sediments, together with paleobiological research and isotopic dating, allowed researchers to analyze the history of environmental changes in the lake and its immediate vicinity, including anthropogenic changes. Wigry Lake had been preserved as a pristine lake for a long time, and, despite the significant growth of anthropopressure, which began in the 17th century and intensified in the 20th century, it retained its natural character to a large extent. This was possible mainly due to the favorable morphometry of the lake (large depth and capacity of the reservoir) and different forms of active and passive protection, introduced mainly after the establishment of the Wigry National Park in 1989.

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