ISSN 2375-0715
African Journal of Fisheries Science ISSN 2375-0715 Vol. 4 (1), pp. 204-205, January, 2016. © International Scholars Journals
Full Length Research Paper
Outbreak of epizootic ulcerative Syndrome (EUS) in Seranochromis robustus Fish species in Darwendale dam, Zimbabwe
1Calvin Gomo, 2T. Hanyire, 3P.V. Makaya and 3S Sibanda
1C. Gomo, School of Agricultural science and Technology, Department of Animal Production and Technology, Chinhoyi University
2Wildlife Unit, Department of Livestock and Veterinary Services, Harare.
3Department of Livestock and Veterinary Services, Harare.
*Corresponding author.E-mail: [email protected]
Received 30 June, 2015; Accepted 28 July, 2015
Abstract
The aim of the study was to investigate the causes of mortality of fish in Darwendale Dam in Zimbabwe. Findings of laboratory gross examination of lesions were consistent EUS. Histopathology examination showed that the fish had mycotic granulomas. Fish of all ages were affected. High mortalities and severity of ulceration suggests a relatively recent invasion by A. invadans at Darwendale dam. EUS spread from Darwendale to other areas due to improper surveillance and poor control strategy due to lack of EUS knowledge by fishermen and authorities. More studies needed to be done in Zimbabwe to determine species of fish affected, strain A invadans circulating and control measures to prevent spread of diseases. EUS was confirmed in Seranochromis robustus in Zimbabwe in 2013. The study is the first published account of infection with Alphanomyces. invadans in the wild fish populations (Seranochromis robustus) of the Darwendale Dam in Zimbabwe.
Key words: EUS, Darwendale, Zimbabwe, Alphanomyces, Invadans, wildfish.