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    Wyświetlanie 1-5 z 5
    Tytuł:
    Palaemon elegans - a new component of the Gulf of Gdańsk macrofauna
    Autorzy:
    Janas, U.
    Zarzycki, T.
    Kozik, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/48380.pdf
    Data publikacji:
    2004
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    coastal water
    Palaemon elegans
    macrofauna
    Baltic Sea
    Gdansk Gulf
    prawn
    Opis:
    The present paper reports on the occurrence of the prawn Palaemon elegans Rathke in the coastal waters of the Gulf of Gdańsk in the years 2002–2003, and in other regions of the Baltic Sea as recorded by various authors.
    Źródło:
    Oceanologia; 2004, 46, 1
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    What is the diet of Palaemon elegans Rathke, 1837 (Crustacea, Decapoda), a non-indigenous species in the Gulf of Gdańsk (Southern Baltic Sea)?
    Autorzy:
    Janas, U.
    Baranska, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/49052.pdf
    Data publikacji:
    2008
    Wydawca:
    Polska Akademia Nauk. Instytut Oceanologii PAN
    Tematy:
    alga
    Ostracoda
    plant component
    Baltic Sea
    Crustacea
    Gammarus
    diet
    macrozoobenthos
    Decapoda
    prawn
    Ectocarpaceae
    coastal zone
    Palaemon elegans
    non-indigenous species
    dietary component
    Cladophora
    feeding
    Gdansk Gulf
    Harpacticoida
    Chironomidae
    animal component
    Opis:
    Palaemon elegans, a new component of the Gulf of Gdańsk macrozoobenthos, colonised the southern Baltic coastal zone in the late 20th and early 21st century. Analysis of the stomach contents of P. elegans revealed 16 plant and animal taxa that these prawns had fed on. The principal dietary component was detritus, with a mean frequency of occurrence in stomachs of > 80%. The most frequently occurring plant components in the diet were algae from the genus Cladophora and the family Ectocarpaceae, while the most significant animal components were Harpacticoida, Chironomidae, Ostracoda and Gammarus spp. The results of the study show that the dietary composition of P. elegans differed significantly between stations and months. The foraging area consisted of two distinctive regions – the Inner Puck Bay, and the Outer Puck Bay together with the Dead Vistula River; two of the stations – Gdynia and Sopot – were distinct from all the others. However, no obvious seasonality in the food composition could be demonstrated.
    Źródło:
    Oceanologia; 2008, 50, 2; 221-237
    0078-3234
    Pojawia się w:
    Oceanologia
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of Ergonomic and Occupational Health-Related Problems Among Female Prawn Seed Collectors of Sunderbans, West Bengal, India
    Autorzy:
    Das, B.
    Ghosh, T.
    Gangopadhyay, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/91151.pdf
    Data publikacji:
    2012
    Wydawca:
    Centralny Instytut Ochrony Pracy
    Tematy:
    musculoskeletal disorders
    physiological stress
    prawn seed collectors
    hand grip strength
    rapid entire body assessment (REBA)
    Opis:
    Sixty female prawn seed collectors and 60 female control subjects from Sajenakhali and Sandeshkhali blocks of Sunderbans, West Bengal, India, were randomly selected to evaluate and compare musculoskeletal disorders and physiological stress. The control group was engaged in domestic work involving minimum handintensive activities. The modified Nordic musculoskeletal questionnaire and rapid entire body assessmentwere used. Most subjects suffered from discomfort in different body parts, especially in the lower back (98%), knees (88%), shoulders (75%), ankles (70%) and feet (67%). This study reveals that female prawn seed collectors suffer from significant physiological load and extreme physiological stress due to prolonged working hours in a standing posture and excessive work pressure. Consequently, all these factors affect female prawn seed collectors’ health and work performance.
    Źródło:
    International Journal of Occupational Safety and Ergonomics; 2012, 18, 4; 531-540
    1080-3548
    Pojawia się w:
    International Journal of Occupational Safety and Ergonomics
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Basics of Aquaculture and Hydrobiotechnology
    Autorzy:
    Fedonenko, Olena
    Marenkov, Oleh
    Sharamok, Tetiana
    Kolesnik, Natalia
    Grygorenko, Tetiana
    Symon, Mariia
    Powiązania:
    https://bibliotekanauki.pl/articles/1178279.pdf
    Data publikacji:
    2017
    Wydawca:
    Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
    Tematy:
    Californian red worm
    algae
    apple snails
    aquaculture
    freshwater prawn
    grape snail
    nematodes
    Opis:
    The manual sets out the necessary material concerning the cultivation of certain objects of aquaculture that can be used as feed additives. The manual is intended for practical work on aquaculture, as well as for independent work and self-study students. The material is designed for students of biological faculties of full-time and correspondence forms of training.
    Źródło:
    World Scientific News; 2017, 88, 1; 1-57
    2392-2192
    Pojawia się w:
    World Scientific News
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Growing Conditions and System Productivity in a Closed-Loop Aquaponic System Under Varying Stocking Density
    Autorzy:
    Fabula, Jeannie-Rose G.
    Gavino, Helen F.
    Sace, Chito F.
    Cinense, Marvin M.
    Sicat, Emmanuel V.
    Abucay, Jose S.
    Powiązania:
    https://bibliotekanauki.pl/articles/24201731.pdf
    Data publikacji:
    2023
    Wydawca:
    Polskie Towarzystwo Inżynierii Ekologicznej
    Tematy:
    aquaponics
    red tilapia
    giant river prawn
    stocking density
    water quality
    growing conditions
    productivity
    Opis:
    Aquaponics is an integrated form of a multi-commodity production system that combines a recirculating aquaculture system with the hydroponic cultivation of crops using the same water via recirculation using pumps. However, the ideal density of cultured aquatic species and the suitable fish/plants/fish feed combinations applicable under aquaponics must be established to determine its impact on the system’s performance, including the local growing conditions that could affect its productivity. Eighteen aquaponic systems following a closed-loop water recirculation method were established for the production of red tilapia, giant river prawns, lettuce, and duckweed. The study aimed to establish the ambient growing condition, water quality, and productivity of the system subjected to different stocking densities of fish (RT24 – 24 fish/m3, and RT48 – 48 fish/m3) and prawn (P0 – zero prawn, P12 – 12 prawns/m2, and P25 – 25 prawns/m2. Results show that with an ambient air temperature and humidity ranging from 30–35 °C and 52–71% during the production, the obtained water quality conditions in the system were: water temperature 27–30 °C; dissolved oxygen (DO) 2.8–3.3 mg/L; pH – 8.3; total ammonia nitrogen (TAN) close to 0, Nitrite – 0; Nitrate – 40 to 160 mg/L; total dissolved solids (TDS) – 580 mg/L; and a daily water loss of 1.47% which were within the tolerable growth conditions of the different species. The stocking density of 24 fish/m3 and 12 prawns/m2 resulted in better growth and yield performance of the cultured aquatic species. However, the stocking densities had no significant effect on the growth and yield of lettuce and duckweed.
    Źródło:
    Journal of Ecological Engineering; 2023, 24, 6; 25--39
    2299-8993
    Pojawia się w:
    Journal of Ecological Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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