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    Wyświetlanie 1-2 z 2
    Tytuł:
    Fishery and environmental situation assessment of water bodies in the Dnipropetrovsk region of Ukraine
    Autorzy:
    Fedonenko, Olena
    Yakovenko, Volodymyr
    Ananieva, Tamila
    Sharamok, Tetiana
    Yesipova, Natalia
    Marenkov, Oleh
    Powiązania:
    https://bibliotekanauki.pl/articles/1158130.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Zaporizke Reservoir
    artificial spawning grounds
    epizootics
    fish biochemistry
    heavy metals
    hydrochemical regime
    ichthyofauna
    nutrition base
    small water bodies
    Opis:
    The monograph presents the results of a long-term research of water ponds biocenosis in the southeastern part of Ukraine. The Department of General Biology and Aquatic Bioresources at Oles Honchar Dnipro National University specialists carried out all the researches. The paper provides a detailed analysis of hydroecological situation in the large and small water bodies, which are used for fishery purposes. It is shown that in the water bodies of different types the total environmental problems are the pollution with organic substances, eutrophication, and anthropogenic pollution with heavy metal salts. Under conditions of increased anthropogenic pressure on water bodies, the biocenoses have gradually degraded. This is manifested in the disappearance of ecologically sensitive species of hydrobionts and the dominance of species with high adaptive abilities. An important problem of current water ecosystems is also the getting and mass distribution of spontaneous fish in fish pools, which actively compete with inhabitat species for the nutrition base and spawning grounds. Separate chapters of the monograph are devoted to physiological and biochemical indicators of industrial fish species, their health status and parasite infestation. In this work the practical recommendations have been given for increasing fish productivity in reservoirs and improving their ecological status at the southeastern Ukraine.
    Źródło:
    World Scientific News; 2018, 92, 1; 1-138
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The meadow, psammophytic and ruderal plant communities with Solidago canadensis L. in Chernihiv Polesie (Ukraine)
    Autorzy:
    Danko, Hanna
    Lukash, Oleksandr
    Morozova, Iryna
    Boiko, Volodymyr
    Yakovenko, Oleksandr
    Powiązania:
    https://bibliotekanauki.pl/articles/2025976.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    vegetation
    anthropogenic influence
    Chernihiv Polesie
    Solidago canadensis L.
    Opis:
    In Chernihiv Polesie Solidago canadensis most often grows in ruderal communities of the Berteroëtum incanae association. Characteristic plant species of the Artemisietea vulgaris class have been found in many phytocenoses with Solidago canadensis. A typical ruderal community dominated by S. canadensis was found, in which characteristic species of the xero-mesophytic ruderal vegetation of the Onopordion acanthii are well represented. Initial communities with the S. canadensis coverage of 25 to 60% in combination with the species of this order and the characteristic species of other high syntaxa were found. Most of them are the transformed meadow phytocenoses of the river floodplains and less often – the psammophytic phytocenoses of pine terraces. The process of ruderalization of meadow ecosystems as a result of the invasion of S. canadensis in Chernihiv Polesie was revealed. This process is especially pronounced on the loess islands, where meadows change into semiruderal grasslands and herblands of the Convolvulo arvensis – Agropyrion repentis alliance. S. canadensis invasion leads to xerophytization and unification of the floodplains meadow phytocenoses grassland. The course of these processes is accelerated by anthropogenic pressure on ecosystems and has irreversible consequences. S. canadensis rarely occurs in the Koelerio–Corynephoretea canescentis class psammophytic communities.
    Źródło:
    Studia Quaternaria; 2021, 38, 2; 149-158
    1641-5558
    2300-0384
    Pojawia się w:
    Studia Quaternaria
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-2 z 2

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