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Wyszukujesz frazę "Plankton" wg kryterium: Temat

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    Wyświetlanie 1-3 z 3
    Tytuł:
    Fertility Differences between Silvofishery Pond and Conventional Pond in Legonkulon, Subang District, Indonesia
    Autorzy:
    Sahidin, Asep
    Zahidah, Zahidah
    Kurniawati, Nia
    Herawati, Heti
    Rizal, Achmad
    Powiązania:
    https://bibliotekanauki.pl/articles/1075743.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Fertility
    Makrozoobentos
    Plankton
    Pond
    Silvofishery
    Subang District
    Opis:
    This study was conducted to determine the fertility difference between silvofishery pond and conventional pond in Legonkulon, Subang, West Java. Sampling methods was used by collecting samples four times in the composite from five sampling points at six stations (three stations at silvofishery ponds and three stations at conventional ponds). The data were analyzed with comparative descriptive method. The results showed that average abundance of phytoplankton in the silvofishery pond is higher (1935 ind/l) than in the conventional pond (494 ind/l). Average abundance of zooplankton in the silvofishery pond found lower (383 individuals/L) than conventional pond (963 ind/l). Makrozoobenthos average abundance is not significantly different between silvofishery pond and conventional pond with average abundance of each 1162 and 1306 individuals/m2 respectively. Silvofishery pond with a composition of 20% mangrove and 80% ponds increased fertility of plankton and makrozoobenthos.
    Źródło:
    World Scientific News; 2019, 118; 115-128
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Saprobic plankton index as bioindicator determines pollution status in Green Canyon River, Pangandaran, Indonesia
    Autorzy:
    Prasetyaningsih, Ayustin
    Zahidah, Zahidah
    Pratama, Rusky Intan
    Sahidin, Asep
    Powiązania:
    https://bibliotekanauki.pl/articles/1046525.pdf
    Data publikacji:
    2019
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Green Canyon River
    Plankton
    Saprobic index
    Opis:
    Rivers generally have pollution potential, which from industrial waste, domestic waste or high human activities, especially in rivers designated as tourist destinations, such as along the Green Canyon River which is used as a research location. The purpose of this research was to determine the level of pollution along the Green Canyon River, Pangandaran. This research focuses on the saprobic index method using plankton as a group composer of saprobic waters which is become a pollution indicator. This research was conducted from September up to November 2018. Sampling was taken at five different stations. The results of this research indicate that the saprobic value of the index along the Green Canyon River, Pangandaran River ranges from 1.0 to 1.5 which indicates that waters are being in very low pollution up to low pollution. The lowest saprobic index value was found at station 4 with the use of the mangrove area and the highest saprobic index value was found at station 2 which was the first brackish point that dominated with forest and far from residential settlements. Identified plankton consists of 8 genera of phytoplankton and 2 genera of zooplankton with abundance until 2495 individual/L. The average of diversity index in range 0.99-1.02 with an average of dominance in range 0.103-0.121.
    Źródło:
    World Scientific News; 2019, 136; 66-77
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Limnological study of Lentic Fresh Water Ecosystem during Summer Season: Nakki Lake-Mount Abu, Rajasthan, India
    Autorzy:
    Gothwal, Rakesh
    Gupta, Govind Kumar
    Powiązania:
    https://bibliotekanauki.pl/articles/1158266.pdf
    Data publikacji:
    2018
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Biodiversity
    Eutrophic
    Lentic
    Limnology
    Nakki-Lake
    Plankton
    Opis:
    Limnological parameter plays a key role in determining the ecological biodiversity. Planktonic diversity can be considered as a major key factor for determining the portability of water. Nakki Lake has the greatest importance amongst the localised. With a seasonal survey, the specific status of limnological characteristic and planktonic diversity in Nakki Lake have been studied through different weather cycles (2017) across three region based on the geography and in contact with human population over top and bottom water samples. With moderately alkaline water (pH 7.08), alkalinity of (102.16 mg/l) and other limnological parameters showed low mean values including TDS (161.83 mg/l), chloride (109.73 mg/l), and hardness (95.66 mg/l). The average dissolved oxygen levels were at 5.75 mg/l while average nitrate and sulphate levels were 31.19 mg/l and 123.73 mg/l respectively. Based on the results of quality parameters of water and soil, Nakki Lake is eutrophic.
    Źródło:
    World Scientific News; 2018, 114; 44-54
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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