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Studies on factors affecting survival of nile fish in the Sudan. I. The effect of hydrogen ion concentration

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Abstract

Young of Tilapia nilotica L. were subjected to acidic and alkaline media of different pH over 24 h periods. Dilute hydrochloric acid was used to lower the hydrogen ion concentration of the test medium. A pH lower than 2.9 resulted in immediate mortality, whereas a pH of 3.5 and above produced no mortality. Alkaline media had no serious effect on survival.

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Author notes

  1. M. A. Mahdi

    Present address: Fisheries Research Division, Ministry of Natural Resources and Rural Development, Khartoum, Sudan

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    1. M. A. Mahdi
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    Communicated by O. Kinne, Hamburg

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    Mahdi, M.A. Studies on factors affecting survival of nile fish in the Sudan. I. The effect of hydrogen ion concentration. Marine Biology 18, 89–92 (1973). https://doi.org/10.1007/BF00348682

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