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

Hayes, P.M., Smit, N.J., Seddon, A.M., Wertheim, D.F. and Davies, A.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. doi:10.14411/fp.2006.031

TitleA new fish haemogregarine from South Africa and its suspected dual transmission with trypanosomes by a marine leech
AuthorsHayes, P.M., Smit, N.J., Seddon, A.M., Wertheim, D.F. and Davies, A.J.
Abstract

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.

KeywordsHaemogregarina curvata, trypanosomes, leeches, development, intertidal fishes, South Africa
JournalFolia Parasitologica
Journal citation53 (4), pp. 241-248
ISSN1803-6465
Year2006
PublisherAkademie Ved Ceske Republiky * Parazitologicky Ustav,Academy of Sciences of the Czech Republic, Institute of Parasitology
Publisher's versionHayes et al 2006 Folia.pdf
Digital Object Identifier (DOI)doi:10.14411/fp.2006.031
Publication dates
Published01 Dec 2006

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