The reproductive strategy of a barb, Barbus anoplus (Pisces: Cyprinidae), colonizing a man-made lake in South Africa


  • J. A. Cambray,

    1. Cape Department of Nature and Environmental Conservation, Douglas Hey Limnological Research Station, P.O. Box 23, Vanderkloof 8771, South Africa
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    • *Albany Museum, Somerset Street, Grahamstown 6140, South Africa.

  • M.N. Bruton

    1. J. L. B. Smith Institute of Ichthyology, Private Bag 1015, Grahamstown 6140, South Africa
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The barb, Barbus anoplus. successfully colonized the marginal habitat of the newly created Lake le Roux on the Orange River system in South Africa. Early maturity and a high reproductive effort facilitated this success. It is suggested that the reproductive strategy which evolved in a seasonally fluctuating riverine environment was advantageous to a species colonizing a newly created man-made lake.