This study compares the aetiology of pansteatitis in Lake Loskop, relative to two other impoundments along the Olifants River. Macroscopic and microscopic pathology, age determination and analysis of stomach content, fatty acids and stable isotopes explain the high prevalence of pansteatitis in Oreochromis mossambicus (Peters) and several other species in Lake Loskop. All the dietary indicator comparisons between pansteatitis‐...

Pansteatitis has been identified in wild populations of sharptooth catfish, C larias gariepinus ( B urchell), and N ile crocodiles, C rocodylus niloticus L aurenti, inhabiting the same waters in the O lifants R iver Gorge in the K ruger N ational P ark, S outh A frica. Mesenteric and pectoral fat tissue was investigated microscopically and by fatty acid analysis in healthy and pansteatitis‐affected catfish from both captive an...