Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "crayfish" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-7 z 7
    Tytuł:
    Biotechnological bases of organization of industrial crayfish farm in Ukraine
    Autorzy:
    Marenkov, Oleh
    Powiązania:
    https://bibliotekanauki.pl/articles/1031670.pdf
    Data publikacji:
    2020
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    aquaculture
    biotechnology
    crayfish
    farming
    ponds
    Opis:
    Crayfish are valuable invertebrates that are constantly in great demand in all corners of the Earth. Breeding crayfish is not only large-scale production as it can also be arranged in small volumes using pools and installations of closed water supply. Cultivation of crayfish generates profit after a certain period of time, if all biotechnological norms of cultivation are considered. Cultivation of crayfish is a rather promising production, in which it is possible to obtain from 200 to 300% of stable profits during 3–4 years old. The article gives an overview of the technology of growing crayfish, taking into account the characteristics of farming in Ukraine. The basic biotechnological stages of the establishment and operation of the economy are determined, calculations of capital expenditures for the establishment of the economy are presented and the profitability of the project for the production of freshwater crayfish is determined. Cultivation of river crayfish makes it possible to obtain environmentally friendly products that can compete on the markets of Ukraine or EU countries. Also, this way of growing crayfish allows getting stocking material for release in natural reservoirs in order to restore the populations of river crayfish.
    Źródło:
    World News of Natural Sciences; 2020, 28; 1-12
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The environmental impact of crayfish biopedoturbation on a floodplain : Roanoke River, North Carolina Coastal Plain, U.S.A
    Autorzy:
    Butler, D. R.
    Powiązania:
    https://bibliotekanauki.pl/articles/294388.pdf
    Data publikacji:
    2002
    Wydawca:
    Stowarzyszenie Geomorfologów Polskich
    Tematy:
    zoogeomorphology
    biopedoturbation
    crayfish
    Roanoke River
    North Carolina
    Opis:
    A terrestrial crustacean, the crayfish, creates widespread fine-scale landforms (mounds or "chimneys") on the floodplain of the Roanoke River in eastern North Carolina, U.S.A. These mounds are typically 12 cm high and 8 cm in diameter, and are composed of extremely high concentrations of clay. Non-crayfish-affected soils on the floodplain, regardless of coarser-scale landform type, are dominated by sand, illustrating that crayfish are a primary mechanism for concentrating clay and creating spatial heterogeneity on the floodplain.
    Źródło:
    Landform Analysis; 2002, 3; 35-40
    1429-799X
    Pojawia się w:
    Landform Analysis
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Problems of parasitism of some species of Branchiobdella Odier, 1823 [Oligochaeta] on crayfish Astacus astacus [L.] and Pontastacus leptodactylus [Esch.]
    Autorzy:
    Wierzbicka, J.
    Smietana, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/838035.pdf
    Data publikacji:
    1998
    Wydawca:
    Polskie Towarzystwo Parazytologiczne
    Tematy:
    Pontastacus leptodactylus
    crayfish
    Astacus astacus
    Oligochaeta
    parasitism
    Branchiobdella
    Źródło:
    Annals of Parasitology; 1998, 44, 3
    0043-5163
    Pojawia się w:
    Annals of Parasitology
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Histology of marbled crayfish Procambarus virginalis (Lyko, 2017): annotated atlas
    Autorzy:
    Marenkov, Oleh
    Lykholat, Tetiana
    Kurchenko, Viktoriia
    Nesterenko, Oleh
    Powiązania:
    https://bibliotekanauki.pl/articles/1055261.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Marmorkrebs
    Procambarus virginalis
    hemolymph
    hepatopancreas
    histology
    marbled crayfish
    Opis:
    The educational publication contains microphotographs and description of histological preparations of the structure of marbled crayfish. The above materials may be used both for carrying out laboratory work on disciplines "Histology", "Cytology", "Cell Biology", "Special Practice", and for self-study of relevant educational topics. Designed for specialists in the field of hydrobiology and histology, students and graduate students of institutions of higher education who studying in the field of "091 Biology", "207 Water bioresources and aquaculture" and "162 Biotechnology and bioengineering". The publication contains the results of studies conducted by President’s of Ukraine grant for competitive projects Ф75/142 «The reproductive potential of invasive species of Dnieper region reservoirs and their impact on bioproductivity formation» (№ 0118U006319) of the State Fund for Fundamental Research.
    Źródło:
    World News of Natural Sciences; 2018, 21; 141-153
    2543-5426
    Pojawia się w:
    World News of Natural Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Characteristics of populations of narrow-clawed crayfish Pontastacus leptodactylus in three Belarusian lakes of the Baltic sea catchment area
    Charakterystyka populacji raków wąskopłetwych Pontastacus leptodactylus w trzech białoruskich jeziorach zlewni Morza Bałtyckiego
    Autorzy:
    Alekhnovich, Anatoli
    Powiązania:
    https://bibliotekanauki.pl/articles/27322961.pdf
    Data publikacji:
    2021
    Wydawca:
    Uniwersytet Pomorski w Słupsku
    Tematy:
    narrow-clawed crayfish
    population size
    survival rate
    population growth rate
    Opis:
    The population characteristics of narrow-clawed crayfish were studied in three Belarusian lakes of the Baltic Sea catchment area. The life history of crayfish is 7 years. The number of larvae I, produced by all females of the population in late spring – early summer is the highest in eutrophic lake Bobrovichskoe – 26.37 ind./m2, the lowest number of larvae I is in mesotrophic lake Ginkovo – 7.09 ind./m2. The number of individuals that survive the transition period from larvae I to the age of one year is 2.80 ± 0.46%, to sexual maturity at the age of 3 years – 0.73 ± 0.15% of crayfish individuals. In the considered populations, the annual survival rate of sexually mature females in the considered populations is 50.7 ± 1.53%. The average generation time is 4.03 ± 0.13 years.
    Źródło:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline; 2021, 25; 19-30
    1643-0115
    Pojawia się w:
    Baltic Coastal Zone. Journal of Ecology and Protection of the Coastline
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of crayfish on the unionids of the Lake Bylice Male (NW Poland)
    Autorzy:
    Swierczynski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/83965.pdf
    Data publikacji:
    1999
    Wydawca:
    Uniwersytet Mikołaja Kopernika. Wydział Biologii i Ochrony Środowiska. Stowarzyszenie Malakologów Polskich
    Tematy:
    crayfish
    Astacus leptodactylus
    unionid
    Anodonta cygnea
    Anodonta anatina
    Lake Bylice Male
    Polska
    Źródło:
    Folia Malacologica; 1999, 07, 4
    1506-7629
    Pojawia się w:
    Folia Malacologica
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Parameters of the histological adaptation of Marmorkrebs Procambarus fallax f. virginal (Decapoda, Cambaridae) to zinc and cadmium ions pollution
    Autorzy:
    Marenkov, Oleh
    Kovalchuk, Julia
    Shapovalenko, Zoya
    Naboka, Olexandra
    Nesterenko, Oleh
    Dzhobolda, Bogdan
    Powiązania:
    https://bibliotekanauki.pl/articles/1178807.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    2010
    Procambarus fallax f. virginalis Martin et al.
    glandulocytes
    heavy metals
    hepatopancreas
    marbled crayfish
    Opis:
    Due to the fact that marbled crayfish (Marmorkrebs) got into the reservoirs of the Dnipropetrovsk region in 2015, it was necessary to study the possibilities of its adaptation to environmental factors of reservoirs for further prediction of its distribution or even acclimatization under conditions of toxicological contamination of the ponds of the steppe Prydniprovya. The article presents the results of studies on the influence of heavy metal ions on marbled crayfish. It was determined that zinc and cadmium ions affect weight indicators, survival and reproduction of experimental crayfish. Experimentally simulated concentrations of heavy metals on the example of zinc – 0.1 mg/l (10 MPC) and cadmium – 0.01 mg/l (2 MPC) allowed detecting the reaction of the excretory system of marbled crayfish. It is determined that under the influence of heavy metal ions the area of glandulocytes cells decreases by 10.4–14.8%. Also, there is a decrease in the cellular nucleus, thus, under the influence of zinc, the nucleus of the secretory cells was 23.6% smaller, and under the influence of cadmium by 17.5%. To study the influence of zinc and cadmium on the glandular cells of the green gland of marbled crayfish, the index of nuclear-cytoplasmic ratio (NCR) was used. The indicator of nuclear-cytoplasmic ratio allows estimating the level of metabolism and detecting the manifestation of compensatory reactions of the organism of experimental crayfish. The value of NCR in the experiment and control was not statistically different and ranged from 0.29 to 0.31 units. This indicates an interproportional reduction in both the cytoplasm of the cells of the green gland and their nuclei, caused by heavy metals exposure. The negative influence of heavy metals on the histostructure of hepatopancreas of marbled crayfish was determined; significant changes in the structure of tissue were noted, heavy metals influenced the shape of the hepatopancerase lobes and the size of the lumen. The worst histological picture of cells of experimental tissues and organs of marbled crayfish was observed in individuals exposed to cadmium ions due to the toxicological effects of this heavy metal. Investigation of the histological structure of tissues and organs of marbled crayfish will allow the development of measures for the determination of biomarkers for the bioindication of the aquatic environment using freshwater crayfish. The results of such studies have an important fundamental and applied significance for understanding the mechanisms of adaptation of crustaceans to the conditions of toxicological burden on aquatic ecosystems.
    Źródło:
    World Scientific News; 2017, 90; 189-202
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-7 z 7

      Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies