Characterising groundwater recharge is fundamental for sustainable groundwater management. This study focuses on assessing recharge in drylands using four experimental plots under different land-use practices in crystalline basement aquifers in three southern African countries (Chitedze in Malawi, Kabeleka and Liempe in Zambia, and Domboshawa in Zimbabwe). Several methods, including water-table fluctuation (WTF), chloride mass...

Global freshwaters are increasingly threatened by pollutants emanating from human activities around watersheds. Microplastic pollution is an increasing problem for rivers worldwide, potentially threatening ecological integrity, ecosystem services and human health. We present quantifications and characterisations of sediment microplastic pollution in a subtropical river system in southern Africa, and relate distributions to was...

Size and age structure, longevity, growth, and reproductive activity of European perch ( Perca fluviatilis ) were studied at Lake Wainamu in March 2012 and 2013 as part of an introduced species eradication programme. Size and age structure of P. fluviatilis were dominated by smaller and younger individuals, while maximum age was estimated at 6 and 5 years for both years, respectively. Initial growth by the end of first year wa...