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dc.contributor.author | Huchzermeyer, Karl David August![]() |
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dc.contributor.author | Govender, Dhanashree (Danny)![]() |
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dc.contributor.author | Pienaar, Daniel J.![]() |
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dc.contributor.author | Deacon, A.R.![]() |
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dc.date.accessioned | 2012-05-24T08:09:04Z | |
dc.date.available | 2012-07-31T00:20:03Z | |
dc.date.issued | 2011-07 | |
dc.description.abstract | Large numbers of adult Nile crocodiles, Crocodylus niloticus (Laurenti), died from pansteatitis during autumn and winter 2008 in the lower Letaba and Olifants River gorge in the Kruger National Park, South Africa. Consequently, the health status of fish from these waters was investigated. The study presents the pathological findings in fish inhabiting these rivers within the boundaries of the Park. Changes typical of steatitis were diagnosed in many of the larger specimens of sharptooth catfish, Clarias gariepinus (Burchell), caught within the Olifants River gorge. These fish carried large amounts of mesenteric fat with characteristic small brown granulomata within the adipose tissue. Necrosis and inflammation of the adipose tissues, with characteristic ceroid accumulation within the resultant granulomata and the associated aggregation of ceroid-containing macrophages, were demonstrated histologically and were typical of steatitis. Other changes included mild thickening and pallor of the gill tissues and swollen, orange, fatty livers. Focal hepatic lipidosis was demonstrated histologically, and special stains revealed storage of large amounts of iron in the livers. Blood smears revealed chromatin clumping in erythrocyte nuclei and nuclear and cell membrane irregularities. This is the first record of steatitis in wild-caught C. gariepinus. | en |
dc.description.librarian | mn2012 | en |
dc.description.sponsorship | The Water Research Commission, South Africa, Consultancy K8/948. | en |
dc.description.uri | http://www.wiley.com/bw/journal.asp?ref=0140-7775 | en |
dc.identifier.citation | Huchzermeyer, KDA, Govender, D, Pienaar, DJ & Deacon, AR 2011, 'Steatitis in wild sharptooth catfish, Clarias gariepinus (Burchell), in the Olifants and Lower Letaba rivers in the Kruger National Park, South Africa', Journal of Fish Diseases, vol. 34, no. 7, pp. 489-498. | en |
dc.identifier.issn | 0140-7775 (print) | |
dc.identifier.issn | 1365-2761 (online) | |
dc.identifier.other | 10.1111/j.1365-2761.2011.01267.x | |
dc.identifier.uri | http://hdl.handle.net/2263/18864 | |
dc.language.iso | en | en |
dc.publisher | Wiley-Blackwell | en |
dc.rights | © 2011 Blackwell Publishing Ltd. This is the pre-peer reviewed version of the following article: Huchzermeyer, KDA, Govender, D, Pienaar, DJ & Deacon, AR 2011, 'Steatitis in wild sharptooth catfish, Clarias gariepinus (Burchell), in the Olifants and Lower Letaba rivers in the Kruger National Park, South Africa', Journal of Fish Diseases, vol. 34, no. 7, pp. 489-498., which has been published in final form at http://www.wiley.com/bw/journal.asp?ref=0140-7775. | en |
dc.subject | Clarias gariepinus | en |
dc.subject | Crocodiles | en |
dc.subject | Fat | en |
dc.subject | Kruger National Park (KNP) | en |
dc.subject | Olifants River | en |
dc.subject | Steatitis | en |
dc.subject.lcsh | Catfishes -- South Africa | en |
dc.subject.lcsh | Siluridae -- South Africa | en |
dc.subject.lcsh | Nile crocodile -- South Africa | en |
dc.subject.lcsh | Wildlife diseases -- South Africa | en |
dc.subject.lcsh | Fishes -- Diseases | en |
dc.title | Steatitis in wild sharptooth catfish, Clarias gariepinus (Burchell), in the Olifants and Lower Letaba rivers in the Kruger National Park, South Africa | en |
dc.type | Preprint Article | en |