Abstract
The impact of ecological factors (abiotic and biotic) on some fishery-biological parameters is studied with the raising of acipenserids under arid conditions with a closed cycle of water supply (CCWS). The elements of a CCWS include the temperature, pH, oxygen concentration, and an artificial environment with varying oxygen supply. It was found that a significant increase in the content of a marker of oxidative stress is established in the blood of fish raised under a CCWS with an increased oxygen content by the end of experiment (four weeks). An oxygen content below 70% retards growth in the starlet, as food consumption is noticeably decreased. To obtain a high biomass in CCWS complexes, it is necessary to set the water temperature to 21–22°C in the basins of semidesert climate conditions and to have a stocking density of 60 kg/m3 for the commercial growth of sterlet.
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Original Russian Text © M.A. Mammaev, M.M. Shikhsabekov, N.I. Rabazanov, M.S. Kurbanov, M.K. Mirzakhanov, R.M. Mammaev, 2018, published in Aridnye Ekosistemy, 2018, Vol. 24, No. 1(74), pp. 91–95.
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Mammaev, M.A., Shikhsabekov, M.M., Rabazanov, N.I. et al. Impact of Ecological Factors on Fishery-Biological Parameters of Acipenserids under Arid Conditions of a Closed Water Supply Cycle. Arid Ecosyst 8, 78–81 (2018). https://doi.org/10.1134/S2079096118010079
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DOI: https://doi.org/10.1134/S2079096118010079