Wednesday, May 21, 2008

Okavango catfish genetics study

Dr Liesl van As, fish parasite specialist from the University of the Free State, has alerted us to Large allozyme variation within populations and isozyme differences between Clarias gariepinus and C. ngamensis from the Okavango Delta, Botswana by University of Johannesburg scientists Herman van der Bank and Nico Smit, published in the African Journal of Aquatic Science in 2007. The authors sampled two types of catfish during migrations at the time of the annual recession of water from Okavango floodplains. Their analysis discovered significant genetic variation in the fish populations, information of potential use to conservation work and to aquaculture. You can find the article in HOORC's Library.

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