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    Wyświetlanie 1-5 z 5
    Tytuł:
    Diversity of Fish and Zoobenthic Communities in Lowland River Related to the Factors of Hydromorphological, River Continuum and Pollution Disturbances
    Autorzy:
    Golski, Janusz
    Dajewski, Krzysztof
    Urbańska, Maria
    Andrzejewski, Wojciech
    Runowski, Sławomir
    Powiązania:
    https://bibliotekanauki.pl/articles/2069890.pdf
    Data publikacji:
    2021
    Wydawca:
    Politechnika Koszalińska. Wydawnictwo Uczelniane
    Tematy:
    lowland stream
    anthropopressure
    fish fauna
    benthic macroinvertebrates
    biodiversity
    Opis:
    The response of zoobenthos and ichthyofauna to different levels of habitat degradation was estimated on a small lowland river. The level of fragmentation, the hydromorphological modifications of the watercourse bed, and the water quality of different river stretches were assessed as proxies of the degree of anthropogenic transformation of habitats. The degree of fauna similarity between the study sites, as well as the relationships between habitat quality and biotic indexes were estimated. A strong response of both assemblages to changes in environmental conditions was demonstrated, however, reaction to individual pressures differs. This confirms that these organisms are excellent, universal bioindicators and both groups should be used together. The key role of a well developed riparian zone in shaping the diversity of freshwater biota has also been demonstrated.
    Źródło:
    Rocznik Ochrona Środowiska; 2021, 23; 845--867
    1506-218X
    Pojawia się w:
    Rocznik Ochrona Środowiska
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the aquatic environment quality of high Andean lagoons using multivariate statistical methods in two contrasting climatic periods
    Autorzy:
    Custodio, M.
    Peñaloza, R.
    Chanamé, F.
    Yaranga, R.
    Pantoja, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/123478.pdf
    Data publikacji:
    2018
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    aquatic environment
    high Andean lagoons
    benthic macroinvertebrates
    water quality
    Opis:
    The quality of the aquatic environment of high Andean lagoons was evaluated by means of multivariate statistical methods in two contrasting climatic periods. The water samples and benthic macroinvertebrates were collected in 22 sampling sites during the rainy and dry seasons. In each lagoon DO, DTS, EC, temperature and pH were determined in situ. The results revealed that the physicochemical parameters comply with the environmental quality standards for water, except COD and BOD5. In the PCA of the physicochemical parameters, the first two axes explained 73% of the total variation. The gradual analysis in pairs showed significant differences. The SIMPER analysis determined an average of four families of benthic macroinvertebrates per lagoon that showed more than 70% contribution. The ANOSIM revealed that Tragadero lagoon differs significantly from the others. The DistLM showed a value of 0.46 of coefficient of determination. Therefore, the quality of the environment of high Andean lagoons evaluated by means of multivariate statistical methods presents important differences or dissimilarities not only in the physicochemical characteristics of the water, but also in the composition of the benthic macroinvertebrate communities.
    Źródło:
    Journal of Ecological Engineering; 2018, 19, 6; 24-33
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Monitoring małych rzek wyżynnych na przykładzie potoku Łękawka (gmina Bestwina, województwo śląskie)
    Monitoring of small upland rivers on the example of the Łękawka stream (Bestwina commune, Silesian Voivodeship)
    Autorzy:
    Salachna, Anna
    Widuch, Dominika
    Powiązania:
    https://bibliotekanauki.pl/articles/16539564.pdf
    Data publikacji:
    2023-06
    Wydawca:
    Uniwersytet Bielsko-Bialski
    Tematy:
    stan ekologiczny
    stan chemiczny
    wskaźniki biologiczne
    makrobezkręgowce bentosowe
    ecological status
    chemical status
    biological indicators
    benthic macroinvertebrates
    Opis:
    The paper presents the assessment of the water condition of the Łękawka stream according Water Framework Directive, carried out on the basis of research on benthic macroinvertebrates and the analysis of data on other indicators used in the monitoring of waters. Sampling of macroinvertebrates, taxonomic identification and calculation of the MMI_PL index were carried out in accordance with the Multi-Habitat Sampling (MHS) method according to the EU standard EN16150:2012, used in Poland for the monitoring of surface waters. Field studies were carried out in September 2022. From each site, 20 quantitative samples were taken from various fractions of the substrate present in the bottom, using a Surber net. Data on other biological indicators, physicochemical and hydrobiological parameters and chemical status were obtained from the resources of the State Environmental Monitoring, concerning the results of monitoring of rivers and dam reservoirs in Poland in 2016-2021. Studies of the invertebrate macrofauna of the Łękawka stream showed the occurrence of only nine families, dominated by taxa with a wide range of ecological tolerance. The final assessment of the ecological status of the Łękawka water body, according to the RDW guidelines, based on the results of monitoring studies, showed a bad ecological status (class V) of the ecosystem. The key in-fluence on this assessment, in accordance with the principle "the worst decides" was the value of the Polish Multimetric Ecological Quality Index MMI_PL, confirmed by the results of the hydromorphological index (HIR). The chemical status of the examined water body, determined on the basis of the results of monitoring priority substances in the field of water policy (a group of 45 indicators) and other pollutants (eight indicators), showed a "below good" class. Finally, on the basis of a comparison of the ecological and chemical status, the bad condition of the Łękawka stream was confirmed. The obtained results indicate a significant disruption in the functioning of the water ecosystem as well as a violation of the hydrological regime and morphological conditions of the streambed. It means that the achievement of the environmental goal set by the Water Framework Directive is very seriously threatened. Therefore, it is necessary to urgently regulate activities in the field of water and sewage management in the catchment area, regarding water intake and discharge of municipal and industrial sewage.
    Źródło:
    Polish Journal of Materials and Environmental Engineering; 2023, 5(25); 41-49
    2720-1252
    Pojawia się w:
    Polish Journal of Materials and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Jakość wody rzeki Wisły i jej dopływów na terenie wybranych gmin powiatu cieszyńskiego (Polska południowa)
    Water quality of the Vistula River and its tributaries in selected municipalities in the Cieszyn district (South Poland)
    Autorzy:
    Salachna, Anna
    Kumorek, Adrianna
    Legierska, Anna
    Janecki, Michał
    Powiązania:
    https://bibliotekanauki.pl/articles/2163398.pdf
    Data publikacji:
    2022
    Wydawca:
    Akademia Techniczno-Humanistyczna w Bielsku-Białej
    Tematy:
    jakość wody
    stan ekologiczny ekosystemu wodnego
    makrobezkręgowce bentosowe
    indeks BMWP-PL
    indeks bioróżnorodności Margalefa
    water quality
    ecological state of the water ecosystem
    benthic macroinvertebrates
    BMWP-PL index
    Margalef’s biodiversity index
    Opis:
    The paper presents an assessment of the water quality of the Vistula river and its tributaries in selected municipalities in the Cieszyn district based on benthic macroinvertebrates. A total of 45 samples were taken on nine positions. Most of the collected individuals were identified to the family level, except: Heptageniidae which was diagnosed to the genus; Turbellaria and Oligochaeta identified into the class. The conducted research showed that 54 taxa of benthic macroinvertebrates occurred at the analyzed sites. Among them, 40 taxa have a bioindicative value. The most sensitive to pollution are mayflies from the family Ameletidae and caddisflies from the families Glossosomatidae, Leptoceridae and Beraeidae. However, their frequency and density at the study sites was very low. The families Ephemerellidae, Heptageniidae, Hydropsychidae and Polycentropodidae as well as annelids from the Oligochaeta class were much more frequent. Based on macrozoobenthos diversity data, two biological indices were calculated: BMWP-PL index and Margalef's biodiversity index. The values of these biological indicators was using to the classiffication of water into the appropriate quality class. The final classification showed that the examined sections of the Vistula river represents the I, II and III class of water quality what indicated high, good and moderate ecological potential/state. The first class of water quality in terms of both indices was recorded at the sites located in Ustroń, Skoczów and Drogomyśl. For these positions, the value of the BMWP-PL index was over 100, while the value of the Margalef's index was in the range of 6.26-7.17.The lowest, third class of water quality was found in Kiczyce and Ochaby Wielkie. In these places, the diversity of macroinvertebrates was the lowest, which was reflected in the low values of both studied indices (BMWP-PL: 40; 41, Margalef's index: 2.6; 3.37).
    Źródło:
    Polish Journal of Materials and Environmental Engineering; 2022, 4(24); 41-49
    2720-1252
    Pojawia się w:
    Polish Journal of Materials and Environmental Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Zmiany jakości wody w Strudze Dormowskiej w ciągu kilkudziesięciu lat na podstawie analizy wskaźników i indeksów biologicznych
    Changes in water quality of struga dormowska stream over several years based on the analysis biological indicators and indices
    Autorzy:
    Graczyk, L.
    Golski, J.
    Trawiński, J.
    Andrzejewski, W.
    Mazurkiewicz, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/338164.pdf
    Data publikacji:
    2016
    Wydawca:
    Instytut Technologiczno-Przyrodniczy
    Tematy:
    belgijski indeks biotyczny (BBI)
    bioindykator
    indeks Ephemeroptera-Plecoptera-Trichoptera (indeks EPT)
    ichtiofauna
    makrobezkręgowce
    bentosowe
    polski indeks biotyczny (BMWP-PL)
    wskaźnik saprobowy
    wskaźnik Shannona–
    Weavera (Sh–W)
    abundance biomass/comparison (ABC)
    Belgian biotic index (BBI)
    benthic macroinvertebrates
    bioindicators
    Ephemeroptera-Plecoptera-Trichoptera index (EPT index)
    ichthyofauna
    Polish biotic index (BMWP-PL)
    Shannon–Weaver index (Sh–W)
    Opis:
    Celem przedstawionych badań było określenie stanu ekologicznego Strugi Dormowskiej na podstawie struktury jakościowej i ilościowej bentosu oraz ichtiofauny, a także porównanie wyników otrzymanych na bazie wskaźników i indeksów biologicznych w ciągu kilkudziesięciu lat. Warunki środowiskowe cieku na odcinkach wytypowanych do badań różniły się między sobą pod względem morfometrii koryta, substratu dennego, temperatury i zawartości tlenu, a także wartości wskaźników i indeksów biologicznych. Na podstawie przeprowadzonych badań należy przyjąć, że wody Strugi Dormowskiej kwalifikują się do trzeciej klasy jakości wód. Niewątpliwy wpływ na stan ekologiczny rozpatrywanego cieku ma położenie zlewni, która obejmuje głównie obszary o charakterze rolniczym. Rzeka przepływa także przez tereny o wysokim potencjale turystyczno-rekreacyjnym, co może oddziaływać na strukturę jakościową i ilościową organizmów wskaźnikowych.
    The aim of this study was to determine the ecological status of Struga Dormowska stream, based on qualitative and quantitative structure of benthic macroinvertebrates and ichthyofauna. The obtained results were compared to other studies, conducted for several decades. Based on the environmental conditions, research sites were varied due to riverbed morphometry, bottom substrate, temperature, dissolved oxygen and values of biological indicators and indices. Based on the obtained results, Struga Dormowska stream represent a third, sufficient class of water quality. The undoubted impact on ecological status of Struga Dormowska stream, has a location of catchment, which mainly covers the agricultural areas. The river also flows through areas with high potential for tourism and recreation, which may affect the species composition of benthic macroinvertebrates and fish.
    Źródło:
    Woda-Środowisko-Obszary Wiejskie; 2016, 16, 2; 37-48
    1642-8145
    Pojawia się w:
    Woda-Środowisko-Obszary Wiejskie
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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