• Effect of artificial aeration on the growth and survival of Indian major carps

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    • Keywords


      Aeration; air-lift system; Catla catla ; Labeo rohita ; Cirrhinus mrigala

    • Abstract


      An experiment was conducted to study the effect of artificial aeration on the growth and survival ofCatla catla (Ham.),Labeo rohita (Ham.) andCirrhinus mrigala (Ham.). Aeration was effected by means of an air-lift system, which sucks water from the bottom and splashes the oxygenated water at the surface, thus facilitating circulation and aeration. All the 3 species of fish recorded slightly better growth in aerated cisterns when compared to the controls. However, the difference observed was marginal and statistically not significant due to the shorter duration of the experiment. Rohu and mrigal exhibited higher survival in aerated cisterns, while catla did not show much variation between the two sets. The overall computed fish production and the average rate of survival were significantly higher in the aerated cisterns when compared to the control.

    • Author Affiliations


      M M Vijayan1 T J Varghese1

      1. College of Fisheries, University of Agricultural Sciences, Mangalore - 575 002, India
    • Dates


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