Hostname: page-component-78c5997874-s2hrs Total loading time: 0 Render date: 2024-11-16T05:02:58.623Z Has data issue: false hasContentIssue false
  • English
  • Français

Trypanosomes and dactylosomes from the blood of fresh-water fish in East Africa

Published online by Cambridge University Press:  06 April 2009

J. R. Baker
J. R. Baker
Affiliation:
East African Trypanosomiasis Research Organization, Tororo, Uganda
Get access Rights & Permissions [Opens in a new window]

Extract

1. Trypanosomes were found in the blood of thirty-five of seventy-two fish of five genera (chiefly Tilapia spp.) from Lakes Victoria and George, Uganda.

2. The trypanosomes, which were never numerous in the blood, showed two morphological forms—small (22–44μ. long) and large (45–65μ). No significant differences were observed between the trypanosomes from the different species of fish, and all the trypanosomes seen are provisionally identified as Trypanosoma mukasai Hoare, 1932.

3. Crithidia were found in the gut of a glossosiphoniid leech which had been removed from a fish; although suggestive, this cannot be taken as conclusive evidence that leeches of this family are vectors of T. mukasai.

4. The taxonomy of the trypanosomes of African fresh-water fish is reviewed, and it is concluded that only the following species should be regarded as valid at present: T. toddi Bouet, 1909, T. mukasai Hoare, 1932, and T. tobeyi Dias, 1952.

5. Dactylosoma mariae Hoare, 1930, was found in the blood of thirty-six of the seventy-two fish examined. Merozoites, schizonts and gametocytes of this small unpigmented parasite were observed within erythrocytes. No developmental stages were found in certain viscera of two infected fish.

Type
Research Article
Information
Parasitology , Volume 50 , Issue 3-4 , November 1960 , pp. 515 - 526
Copyright
Copyright © Cambridge University Press 1960

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

Bouet, G. (1909). Sur quelques trypanosomes des vertébrés à sang froid de l'Afrique occi-dentale francaise. C.R. Soc. Biol., Paris, 66, 609.Google Scholar
Dias, J. A. T. S. (1952). Uma nova espécie di tripanosoma, parasita do Clarias gariepinus (Burchell 1822), peixe africano de àgua doce. An. Inst. Med. trop., Lisboa, 9, 167.Google Scholar
Dias, J. A. T. S. (1955). Estudos sobre os hematozarios dos peixes de àgua doce de Moçambique. I. Descrição de algumas novas espécies de tripanossomas, parasitas da ‘Tilapia mossambica’ (Peters, 1852). Mo¸zambique.: Doc. trimestr., no. 82, 47.Google Scholar
Dutton, J. E., Todd, J. L. & Tobey, E. N. (1906). Concerning haemoflagellates of an African fish (Clarias angolensis). J. Med. Res. 15, 491.Google Scholar
Fantham, H. B. (1919). Some parasitic protozoa found in South Africa. II. S. Afric. J. Sci. 16, 185.Google Scholar
Fantham, H. B., Porter, Annie & Richardson, L. R. (1942). Some haematozoa observed in vertebrates in eastern Canada. Parasitology, 34, 199.CrossRefGoogle Scholar
Hoare, C. A. (1930). On a new Dactylosoma occurring in fish of Victoria Nyanza. Ann. Trop. Med. Parasit. 24, 241.Google Scholar
Hoare, C. A. (1932). On protozoal blood parasites collected in Uganda. Parasitology, 24, 210.Google Scholar
Hoare, C. A. (1955). Intraspecific biological groups in pathogenic Protozoa. Refuah Vet. 12, 263.Google Scholar
Jakowska, S. & Nigrelli, R. S. (1956). Babesiosoma gen. nov. and other babesioids in erythrocytes of cold-blooded vertebrates. Ann. N.Y. Acad. Sci. 64, 112.CrossRefGoogle Scholar
Leboeuf, A. & Ringenbach, —. (1910). Sur quelques hematozoaires du Congo. Ann. Inst. Pasteur, 24, 945.Google Scholar
Leger, M. & Leger, A. (1914). Hémogrégarine et trypanosome d'un poisson du Niger, Tilapia lata. C.R. Soc. Biol., Paris, 77, 183.Google Scholar
Neave, S. (1906). Report of travelling pathologist and naturalist. Second Rep. Wellcome Res. Labs., Khartoum, pp. 183–204.Google Scholar
Prates, M. M. (1928). The precipitin test applied to the blood in the alimentary canal of Glossinae. Final Rep. League of Nations international Commission on Human Trypanosomiasis, p. 179. Geneva.Google Scholar
Robertson, Muriel (1912). Transmission of flagellates living in the blood of certain fresh water fishes. Philos. Trans. B, 202, 29.Google Scholar
Rodhain, J. (1908). Note sur quelques trypanosomes de grenouilles et de poissons dans l'Ubangi. Zbl. Bakt. (Abt. 1, Orig.) 45, 129.Google Scholar
Wenyon, C. M. (1908). Report of travelling pathologist and protozoologist. Third Rep. Wellcome Res. Labs., Khartoum, pp. 121–168.Google Scholar
Wenyon, C. M. (1926). Protozoology, vol. 1. London: Bailliere, Tindall and Cox.Google Scholar