A new fish haemogregarine from South Africa and its suspected dual transmission with trypanosomes by a marine leech

Hayes, Polly M., Smit, Nico J., Seddon, Alan M., Wertheim, David F. and Davies, Angela J. (2006) A new fish haemogregarine from South Africa and its suspected dual transmission with trypanosomes by a marine leech. Folia Parasitologica, 53(4), pp. 241-248. ISSN (print) 0015-5683

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Twenty two percent (22/98) of intertidal fishes of 10 species captured in South Africa at Koppie Alleen, De Hoop Nature Reserve (south coast) and Mouille Point, Cape Town (west coast), harboured single or combined infections of haemogregarines, trypanosomes and an intraerythrocytic parasite resembling a Haemohormidium sp. The haemogregarines included the known species Haemogregarina (sensu lato) bigemina (Laveran et Mesnil, 1901) Siddall, 1995 and Haemogregarina (sensu lato) koppiensis Smit et Davies, 2001, while Haemogregarina (sensu lato) curvata sp. n. was observed in Clinus cottoides Valenciennes and Parablennius cornutus (L.) at Koppie Alleen. This last haemogregarine is characterised particularly by its distinctly curved gamonts. Also at Koppie Alleen, squash and histological preparations of 9/10 leeches, Zeylanicobdella arugamensis De Silva, 1963, taken from infected C. cottoides and P. cornutus contained developmental stages of H. curvata and/or trypanosomes, but these were absent from haematophagous gnathiid isopods (Gnathia africana Barnard, 1914) taken from infected fishes. It is suspected that Z. arugamensis transmits the haemogregarine and trypanosomes simultaneously between fishes, a double event unreported previously from the marine environment.

Item Type: Article
Additional Information: This work was supported by the Royal Society; The Claude Harris Leon Foundation and the University of Johannesburg's Sasol Research Fund.
Uncontrolled Keywords: haemogregarina curvata, trypanosomes, leeches, development, intertidal fishes, south africa, life-cycle, Haemogregarina-bigemina, merogonic development, blood parasites, cyrilia-nili, apicomplexa, host, adeleina, redescription, murmanensis
Research Area: Allied health professions and studies
Faculty, School or Research Centre: Faculty of Science (until 2011) > School of Life Sciences
Faculty of Computing, Information Systems and Mathematics (until 2011)
Related URLs:
Depositing User: David Salliss
Date Deposited: 28 Oct 2007
Last Modified: 22 Mar 2011 09:00
URI: http://eprints.kingston.ac.uk/id/eprint/1864

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