Results 21 to 30 of about 1,234,531 (212)

Range expansion of an invasive alien species, Chinese sleeper, Perccottus glenii Dybowski, 1877 (Teleostei: Odontobutidae) in the Vistula River drainage [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2008
Background. In October 2007 an invasive alien species, the Chinese sleeper, Perccottus glenii Dybowski, 1877 (known also as the Amur sleeper), was recorded in carp ponds in KrakĂłw-Mydlniki (southern part of Vistula River drainage).
M. Nowak, W. Popek, P. Epler
doaj   +3 more sources

Studies on mercury content in muscles of fishes from some natural Polish water bodies [PDF]

open access: yesActa Ichthyologica et Piscatoria, 1981
Total mercury contents were determined in muscles of 16 fish species caught in the river Vistula, its tributaries, and the Łęczyca-Włodawa lakes. All the Vistula fishes examined showed much higher mercury contents compared to those found in fishes from ...
M. Studnicka
doaj   +3 more sources

Failed protective effort of ex situ conservation of River Vistula trout (Salmo trutta) in Sweden [PDF]

open access: yes, 2022
Ex situ conservation comprises some of the oldest and best-known conservation methods and it has been applied for different fish stocks. This study describes attempts undertaken to preserve the long-migrating River Vistula (Poland) brown trout by a sea ...
Debowski, Piotr   +2 more
core   +1 more source

Microplastic and mesoplastic in stagnation of the Vistula water in highly urbanized areas of the Krakow poviat - preliminary research [PDF]

open access: yesActa Scientiarum Polonorum. Formatio Circumiectus, 2022
Aim of the study: The aim of the study was to analyze the occurrence of plastic particles in the waters of the Vistula River within Kraków. Material and methods: The presence of micro- and mesoplasic substances in the collected water samples was ...
Ewa Dacewicz   +4 more
doaj   +1 more source

Pit Lakes Affected by a River Contaminated with Brines Originated from the Coal Mining Industry: Evolution of Water Chemistry in the Zakrzówek Horst Area (Krakow, Southern Poland)

open access: yesEnergies, 2022
Long-term coal mining activities in the Upper Silesia significantly affect the environment in southern Poland. Discharges of brines (with TDS reaching over 110 g/L) from mines are the main source of pollution of many rivers in Poland, including the ...
Jacek Motyka   +4 more
doaj   +1 more source

Impact of the inflow of Vistula river waters on the pelagic zone in the Gulf of Gdańsk

open access: yesOceanologia, 2013
The biomass, production, composition of autotrophic phytoplankton andhetero-trophic bacteria were studied along with environmental and biologicalparameters.
Nadezhda Torgunova   +9 more
doaj   +1 more source

Prediction of the Vistula Channel Development Between Wloclawek and Torun: Evaluation with Regard to the New Geological Survey

open access: yesQuaestiones Geographicae, 2014
The aim of this paper is to present the geological structure of the Vistula river valley floor as the modifying factor of fluvial processes and present the development conditions of the contemporary Vistula river channel, which underwent marked ...
Babiński Zygmunt   +2 more
doaj   +1 more source

Potential Impact of Waterway Development on Cultural Landscape Values: The Case of the Lower Vistula

open access: yesUrban Planning, 2023
The northern (“lower”) section of the Vistula is on the route of two international waterways—E70 and E40. However, the current condition of the riverbed prevents larger vessels from passing through.
Anna Golędzinowska
doaj   +1 more source

Thermal regime of the Vistula River mouth and the Gdańsk Bay

open access: yesGeographia Polonica
Surface water temperature characteristics of the Vistula River mouth and the Gdańsk Bay were determined on the basis of available observations, remote sensing and hydrodynamic models.
Renata Graf, Viktor Vyshnevskyi
doaj   +1 more source

Hydrological effects of the hydraulic structures constructed in the valley of the River Little Vistula in Poland from the mid-18th century to the present

open access: yesEnvironmental & Socio-economic Studies, 2017
This study of the hydraulic structures constructed in the River Little Vistula (Mała Wisła) valley covers its western reach from the village of Strumień (Schwartzwasser) to the mouth of the River Przemsza.
Czaja Jakub
doaj   +1 more source

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