Features » Pioneering study on the Australian redclaw crayfish in the Mighty Zambezi Basin, across four southern African countries

A recent study published in the Aquatic Conservation: Marine and Freshwater Ecosystems journal by NRF-SAIAB PhD graduand, Takudzwa Madzivanzira represents the first of its kind in the region of southern Africa to comprehensively document the establishment and spread of invasive crayfish using a standardised approach.

The Australian redclaw crayfish Cherax quadricarinatus is an emerging global invader, and was recently reported in the Barotse floodplain, the largest wetland in the Zambezi Basin, Southern Africa. To establish a better understanding of where these crayfishes are, their population structures and where they are heading to, the study surveyed regions in the understudied Zambezi Basin covering four countries (Botswana, Namibia, Zambia, Zimbabwe), across ten rivers with over 1000 traps. This study compared the abundances and population characteristics of crayfish in the recently invaded Barotse floodplain with older invasions from Lake Kariba (Zimbabwe) and Kafue River (Zambia), representing the first of its kind in the region. READ MORE 

Recently, the National Research Foundation (NRF) gathered to celebrate South Africa's local research talent at the annual NRF Awards ceremony, where Dr Takudzwa Madzivanzira was awarded a Research Excellence Award for Next Generation Researchers in 2020. This award recognises outstanding research performance for final year doctoral students who are currently funded by the NRF. The awards ceremony can be viewed from the NRF YouTube Channel.

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