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Hydrobiological Journal
SJR: 0.227 SNIP: 0.901 CiteScore™: 0.5

ISSN Печать: 0018-8166
ISSN Онлайн: 1943-5991

Выпуски:
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Hydrobiological Journal

DOI: 10.1615/HydrobJ.v46.i3.40
pages 45-59

Farming of the Juvenile Narrow-clawed Crayfish (Astacus leptodactylus) in Cages and Ponds in Polyculture With Fish in the Heated Waste Water of the Thermal Power Plant

V. F. Kulesh
Belarusian State Pedagogical University Minsk, Belarus
A. V. Alekhnovych
Research-Practical Center of the National Academy of Sciences of Belarus on Bioresources, Minsk, Belarus

Краткое описание

Experimental research has been carried out on farming of the narrow-clawed crayfish larvae in ponds and cages in the TPP waste water. It was shown that farming in such conditions during the first vegetation period was more effective, than in water bodies with natural temperature regime. In ponds in polyculture with fish crayfish summerlings reached 4.4−4.6 cm length and 2.69−3.34 g mass; when grown in cages with natural forage resources − 3.4−3.7 cm and 1.25−1.53 g, accordingly. Survival rate in the ponds amounted to 2.9−3.0%, in cages − 22.0−37.3%. Density of seeding should be about 70 specimens/m2. Cages of the open-air type have been recommended.


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