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Wyszukujesz frazę "stream regulation" wg kryterium: Temat


Wyświetlanie 1-6 z 6
Tytuł:
Ichtiofauna Neru w mieście Łodzi - stan obecny i zmiany w ostatniej dekadzie
Fish fauna of the Ner river in the City of Łódź - present state and changes over the last decade Remove selected
Autorzy:
Galicka, Wanda
Grabowska, Joanna
Kruk, Andrzej
Penczak, Tadeusz
Marszał, Lidia
Tszydel, Mariusz
Tybulczyk, Szymon
Powiązania:
https://bibliotekanauki.pl/articles/970670.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
urban aquatic ecosystem
sewage treatment plant
water pollution
stream regulation
recolonisation
miejski ekosystem wodny
oczyszczalnia ścieków
zanieczyszczenie wody
regulacja koryta
rekolonizacja
Opis:
In 2010 electrofishing was conducted at four sites located in the Ner River section flowing across the City of Łódź. Two species co-dominated in abundance: perch (36.1%) and roach (34.2%). The site downstream from the Stefańskiego Ponds was most abundant in fish. Among 13 species represented by almost 3 thousand specimens captured there perch and roach (36.9% and 32.6%, respectively) were dominants, while ruffe (16.5%) was a subdominant. The most human-impacted site was located downstream from the Dobrzynka Stream inflow, where no fish were caught. A comparison of the present state of fish fauna with that of monitoring studies carried out during the recent decade in the river’s section flowing across the City of Łódź indicated no significant changes in fish assemblage structure. The species composition and assemblage structure of the section is positively influenced by the recreational ponds, which feed their adjacent reaches of the river with fish. Unfortunately, in two of the sampling sites the situation of fish remains critical, which is testified to by almost total lack of them. The reason of this situation is low water quality and isolation (chemical barrier) of the upper Ner River system from the Warta River.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2006, Supplementum; 55-67
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ichtiofauna strumieni w systemie Wisły w mieście Łodzi
Ichthyofauna of streams in the Vistula river system in the City of Łódź
Autorzy:
Marszał, Lidia
Zięba, Grzegorz
Kruk, Andrzej
Tszydel, Mariusz
Tybulczyk, Szymon
Pietraszewski, Dariusz
Galicka, Wanda
Janic, Bartosz
Powiązania:
https://bibliotekanauki.pl/articles/970739.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
urban aquatic ecosystem
water pollution
stream regulation
miejski ekosystem wodny
zanieczyszczenie wody
regulacja koryta
Opis:
In 2010 in the City of Łódź, Central Poland, electrofishing was carried out at 12 sites in the Miazga, Bzura, Sokołówka and Lagiewniczanka Streams in the Vistula system. Eight fish species were recorded, of which two were alien (giebel Carassius gibelio and topmouth gudgeon Pseudorasbora parva) and only two were rheophilic (ide Leuciscus idus and gudgeon Gobio gobio). Roach Rutilus rutilus and three-spined stickleback Gasterosteus aculeatus constituted 64% of all the fish in samples. Stone loach Barbatula barbatula, usually common in other similar streams, was absent. The fish distribution and abundance was significantly determined by the stream regulation. In the Sokołówka electrofishing was conducted earlier at the same six sites in 2002. Seven species were recorded in both terms; in 2010 ide (coming from stocking) was captured instead of the previously recorded crucian carp Carassius carassius. The total fish abundance was over twice lower than in 2002.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2006, Supplementum; 89-111
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Ichtiofauna sytrumieni w systemie Neru w mieście Łodzi
Ichthyofauna of streams in the Ner river system in the City of Łódź
Autorzy:
Kruk, Andrzej
Galicka, Wanda
Tszydel, Mariusz
Tybulczyk, Szymon
Pietraszewski, Dariusz
Marszał, Lidia
Błońska, Dagmara
Cieplucha, Michał
Powiązania:
https://bibliotekanauki.pl/articles/970746.pdf
Data publikacji:
2006
Wydawca:
Uniwersytet Łódzki. Wydawnictwo Uniwersytetu Łódzkiego
Tematy:
urban aquatic ecosystem
combined sewage system
storm overflow
water pollution
stream regulation
miejski ekosystem wodny
ogólnospławny system kanalizacji
przelew burzowy
zanieczyszczenie wody
regulacja koryta
Opis:
In 2010 in the City of Łódź, Central Poland, electrofishing was carried out at 15 sites in the Dobrzynka, Jasień, Olechówka, Łódka and Jasieniec Streams in the Ner/Odra system. Fourteen fish species were recorded (13 species in the Olechówka and altogether 7 species in the remaining streams), of which six were limnophilic and only two rheophilic. Sunbleak Leucaspius delineatus, gudgeon Gobio gobio and stoneloach Barbatula barbatula constituted 90% of all the fish in samples. Over 100 specimens were caught at each site in the Olechówka Stream, while only 1 -11 specimens were recorded at each of the remaining sites (except one fishless site in the Jasieniec Stream). The fish distribution was determined by water purity strongly connected with the type (combined/separate) of urban sewage system functioning in a given stream basin. The condition of ichthyofauna in 2010 was slightly better than during electrofishing conducted in 2001. The Jasień and Łódka Streams were fishless in 2001 while in 2010 several fish specimens at each site belonging to the total of 3 and 4 species, respectively were recorded. In the Olechówka, in 2010 five new species were caught and the total fish abundance was over 3 times higher than in 2001.
Źródło:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica; 2006, Supplementum; 69-87
1730-2366
2083-8484
Pojawia się w:
Acta Universitatis Lodziensis. Folia Biologica et Oecologica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regulation of mountain streams versus ecological balance as illustrated by the example of the upper Vistula basin (part I)
Regulacja potoków górskich a równowaga ekologiczna na przykładzie dorzecza górnej Wisły (cz.I)
Autorzy:
Niechwiej Sj, A.
Powiązania:
https://bibliotekanauki.pl/articles/886589.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
stream
regulation
mountain stream
ecological balance
Upper Vistula River
hydraulic structure
renaturalization
Źródło:
Scientific Review Engineering and Environmental Sciences; 2015, 24, 3(69)
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Regulation of mountain streams versus ecological balance as illustrated by the example of the upper Vistula basin (part II)
Regulacja potoków górskich a równowaga ekologiczna na przykładzie dorzecza górnej Wisły (część II)
Autorzy:
Niechwiej Sj, A.
Powiązania:
https://bibliotekanauki.pl/articles/887215.pdf
Data publikacji:
2015
Wydawca:
Szkoła Główna Gospodarstwa Wiejskiego w Warszawie. Wydawnictwo Szkoły Głównej Gospodarstwa Wiejskiego w Warszawie
Tematy:
mountain stream
regulation
ecological balance
Upper Vistula River
Vistula basin
hydraulic structure
hydrobiont
renaturalization
Źródło:
Scientific Review Engineering and Environmental Sciences; 2015, 24, 4(70)
1732-9353
Pojawia się w:
Scientific Review Engineering and Environmental Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Studies on riverbed evolution on the Nida river at the Pinczow and Wislica gauging station
Autorzy:
Lapuszek, M.
Powiązania:
https://bibliotekanauki.pl/articles/62286.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Infrastruktura i Ekologia Terenów Wiejskich PAN
Tematy:
riverbed
evolution
Nida River
river regulation
linear regression
river network
catchment
erosion
denudation
hydrology
fluvial system
long-term evolution
bottom
stream bed
Opis:
The long-term evolution of the river beds of Nida River in Pińczów and Wiślica gauging station as well as an analysis of the causes of significant cases of lowering of the bottom of stream beds are presented in the paper. The intensity of river bed evolution as a stochastic process is described with the use of a statistical model. The analysis of the intensity of the process of river bed erosion was conducted under the assumption that the observed long-term trend of the lowest annual water levels reflect the elevation of the river bottom in the same years. The recorded observations at the Pińczów and Wiślica gauging stations on the Nida River, covering over 70-year period of time, are analyzed. Observations of the variability in the studied bottom levels over the decades allow concluding that the great transformation of riverbeds occurred there. The observations and calculations show that in Pińczów multistream or meandering river bed changed into straight channel and the process of shallowing of the river bed appeared. At the Wiślica gauging station the process of riverbed erosion with the variable intensity was observed. The research shows that the causes of these changes observed in Pińczów and Wiślica are not natural, but rather of human activity.
Źródło:
Infrastruktura i Ekologia Terenów Wiejskich; 2011, 12
1732-5587
Pojawia się w:
Infrastruktura i Ekologia Terenów Wiejskich
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-6 z 6

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