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Wyświetlanie 1-5 z 5
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:
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
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:
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
    Wyświetlanie 1-5 z 5

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