@article {van der Bank:November 2007:1608-5914:311,
	author = "van der Bank, Herman",
	author = "Smit, Nico",
	title = "Large allozyme variation within populations and isozyme differences between Clarias gariepinus and C. ngamensis from the Okavango Delta, Botswana",
	journal = "African Journal of Aquatic Science",
	volume = "32",
	year = "November 2007",
	abstract = "An allozyme study of 47 <I>Clarias gariepinus</I> and 53 <I>C. ngamensis </I> individuals revealed variation at 11 (57.9%) and eight (40%), out of 19 and 20 loci, respectively. The average heterozygosity of 0.167, 57.9% polymorphism and average of 1.895 alleles at loci is the largest amount of variation yet reported for <I>C. gariepinus.</I> Significant pair-wise contingency chi-square differences, one isozyme and another fixed allele difference at LDH, were found between the species. Nevertheless, a relatively small genetic distance value (D = 0.134) between the species supports recent morphological and DNA results by other researchers, confirming the closeness of these two species.",
	pages = "311-315(5)",
	url = "http://www.ingentaconnect.com/content/nisc/ajas/2007/00000032/00000003/art00012"
	doi = "doi:10.2989/AJAS.2007.32.3.12.311"
}