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Determining the most suitable method of otolith preparation for estimating the age of tigerfish, Hydrocynus vittatus in the Pongolapoort Dam, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: M. Soekoe --- Department of Zoology, South Africa F. H. van der Bank --- Department of Zoology, South Africa N. J. Smit --- North-West University, PotchefstroomThis study compares sectioned and whole lapillus and asterisci otoliths as suitable structures for ageing tigerfish, Hydrocynus vittatus. Fifty tigerfish were collected from the Pongolapoort Dam, KwaZulu-Natal, South Africa. Growth zone counts on sectioned lapilli showed the greatest percentage agreement... -
Cadmium and lead levels in three freshwater fish species from the Zambezi region, Namibia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: O Madzingira --- , Namibia LZ Lifumbela --- , Namibia E Kandiwa --- , Namibia L Kandjengo --- , Namibia B Mushonga --- , NamibiaMuscle tissue from three-spotted tilapia (Oreochromis andersonii) (n = 11), sharp tooth catfish (Clarias gariepinus) (n = 14) and tigerfish (Hydrocynus vittatus) (n = 12) were sampled from a market in the Zambezi region, Namibia in June 2018 and analysed... -
Using the Kariba Invitation Tiger Fishing Tournament for monitoring an invasive crayfish Cherax quadricarinatus in Lake Kariba, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LT Marufu --- , Zimbabwe C Phiri --- , Zimbabwe M Barson --- , Botswana T Nhiwatiwa --- , ZimbabweThe stomach contents of tigerfish Hydrocynus vittatus, caught in an angling competition on Lake Kariba, were examined to determine the extent to which they feed on the invasive crayfish Cherax quadricarinatus. The stomach contents of 281 tigerfish caught during three...