Acta Parasitologica

, Volume 57, Issue 2, pp 122–130 | Cite as

Gyrodactylus malalai sp. nov. (Monogenea, Gyrodactylidae) from Nile tilapia, Oreochromis niloticus (L.) and Redbelly tilapia, Tilapia zillii (Gervais) (Teleostei, Cichlidae) in the Lake Turkana, Kenya

  • Iva Přikrylová
  • Blažek Radim
  • Milan Gelnar
Original Paper


Gyrodactylus malalai sp. nov. is described from the fin surface of cichlid fishes Oreochromis niloticus (L.) and Tilapia zillii (Gervais) caught in Lake Turkana (Kenya). The new species morphologically resembles Gyrodactylus nyanzae Paperna, 1973, but can be readily distinguished by the shape of the marginal hook sickles and the size of its hamuli. The sequence data of rDNA spanning partial 18S, internal transcribe spacer 1 and 2 and the 5.8S gene is unique within GenBank. Genetically, as most similar Gyrodactylus ergensi Přikrylová, Matějusová, Musilová et Gelnar, 2009 was found (97.5%). Moreover, a specimen of G. cichlidarum from O. niloticus, and a specimen G. ergensi from Sarotherodon galilaeus (L.) were collected during sampling in Kenya. Likewise, additional sampling of O. niloticus from the Blue Nile in Sudan revealed the presence of the newly described species. These findings represent the first records of gyrodactylids in both African countries.


New species Gyrodactylus rDNA East Africa cichlids Kenya Sudan 


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Altschul S.F., Gish W., Miller W., Myers E.W., Lipman D.J. 1990. Basic local alignment search tool. Journal of Molecular Biology, 215, 403–410.PubMedGoogle Scholar
  2. Bakke T.A., Harris P.D., Cable J. 2002. Host specificity dynamics observations on gyrodactylid monogeneans. International Journal for Parasitology, 32, 281–308.PubMedCrossRefGoogle Scholar
  3. Bakke T.A., Cable J., Harris P.D. 2007. The Biology of Gyrodactylid Monogeneans: The “Russian-Doll Killers”. Advances in Parasitology, 64, 164–376. DOI: 10.1016/S0065-308X(06)64003-7.CrossRefGoogle Scholar
  4. Cable J., Harris P.D., Tinsley R.C., Lazarus C.M. 1999. Phylogenetic analysis of Gyrodactylus spp. (Platyhelminthes: Monogenea) using ribosomal DNA sequences. Canadian Journal of Zoology Revue, 77, 1439–1449. DOI: 10.1139/cjz-77-9-1439.Google Scholar
  5. Christison K.W., Shinn A.P., van As J.G. 2005. Gyrodactylus thlapi n. sp. (Monogenea) from Pseudocrenilabrus philander philander (Weber) (Cichlidae) in the Okawango Delta, Botswana. Systematic Parasitology, 60, 165–173. DOI:10.1007/s11230-004-6342-x.Google Scholar
  6. FAO. 2009. The state of aquaculture fisheries and aquaculture. FAO Fisheries and Aquaculture Department Food Agricultures Organization of the United Nations Rome, 2010.Google Scholar
  7. Fryers G., Iles T.D. 1972. The Cichlid Fishes of the Great Lakes of Africa: Their Biology and Evolution. T.F.H. Publ., Neptune City, New Jersey, 656 pp.Google Scholar
  8. García-Vásquez A., Hansen H., Shinn A.P. 2007. A revised description of Gyrodactylus cichlidarum Paperna, 1968 (Gyrodactylidae) from the Nile tilapia, Oreochromis niloticus niloticus (Cichlidae), and its synonymy with G. niloticus Cone, Arthur et Bondad-Reantaso, 1995. Folia Parasitologica, 54, 129–140.PubMedGoogle Scholar
  9. García-Vásquez A., Hansen H., Christison K.W., Rubio-Godoy M., Bron J.E., Shinn A.P. 2010. Gyrodactylids (Gyrodactylidae, Monogenea) infecting Oreochromis niloticus niloticus (L.) and O. mossambicus (Peters) (Cichlidae): A pan-global survey. Acta Parasitologica, 55, 215–229. DOI: 10.2478/s11686-010-0042-2.CrossRefGoogle Scholar
  10. García-Vásquez A., Hansen H., Christison K.W., Bron J.E., Shinn A.P. 2011. Description of three new species of Gyrodactylus von Nordmann, 1832 (Monogenea) parasitising Oreochromis niloticus niloticus (L.) and O. mossambicus (Peters) (Cichlidae). Acta Parasitologica, 56, 20–33. DOI: 10.2478/s11686-011-0005-2.CrossRefGoogle Scholar
  11. Harris P.D., Shinn A.P., Cable J., Bakke T.A. 2004. Nominal species of the genus Gyrodactylus von Nordmann, 1832 (Monogenea: Gyrodactylidae), with a list of principal host species. Systematic Parasitology, 59, 1–27. DOI: 10.1023/B:SYPA.0000038447.52015.e4.PubMedCrossRefGoogle Scholar
  12. Hillis D.M., Mable B.K., Moritz C. 1996. An overview of applications of molecular systematic. In: (Eds. D.M. Hillis, C. Moritz and B.K. Mable) Molecular Systematics. 2nd Ed., Sinauer, Massachusetts, USA, pp. 515–534.Google Scholar
  13. Hopson A.J., Hopson J. 1982. The fishes of Lake Turkana with a description of three new species: Alestes ferox sp. nov., Alestes minutus sp. nov. (Pisces, Characidae) and Barbus turkanae sp. nov. (Pisces, Cyprinidae). In: (Ed. A.J. Hopson) Lake Turkana. Overseas Development Administration, London, pp. 283–347.Google Scholar
  14. Huyse T., Audenaert V., Volckaert P.A.M. 2003. Speciation and host-parasite relationships in the parasite genus Gyrodactylus (Monogenea, Platyhelminthes) infecting gobies of the genus Pomatoschistus (Gobiidae, Teleostei). International Journal for Parasitology, 33, 1679–1689. DOI: 10.1016/S0020-7519 (03)00253-4.PubMedCrossRefGoogle Scholar
  15. Malmberg G. 1970. The excretory systems and marginal hooks as basis for the systematics of Gyrodactylus (Trematoda, Monogenea). Arkiv för Zoology, 2, 1–235.Google Scholar
  16. Matějusová I., Gelnar M., McBeath A.J.A., Collins C.M., Cunningham C.O. 2001. Molecular markers for gyrodactylids (Gyrodactylidae: Monogenea) from five fish families (Teleostei). International Journal for Parasitology, 31, 738–745.PubMedCrossRefGoogle Scholar
  17. Matějusová I., Gelnar M., Verneau O., Cunningham C.O., Littlewood D.T.J. 2003. Molecular phylogenetic analysis of the genus Gyrodactylus (Platyhelminthes: Monogenea) inferred from rDNA ITS region: subgenera versus species groups. Parasitology, 127, 603–611. DOI: 10.1017/S0031182003004098.PubMedCrossRefGoogle Scholar
  18. Pariselle A., Euzet L. 1995. Gill parasites of the genus Cichlidogyrus Paperna, 1960 (Monogenea, Ancyrocephalidae) from Tilapia guineensis (Bleeker, 1862), with description of six new species. Systematic Parasitology, 30, 187–198.CrossRefGoogle Scholar
  19. Pariselle A., Euzet L. 2003. Four new species of Cychlidogyrus (Monogenea: Ancyrocephalidae), gill parasites of Tilapia cabrae (Teleostei: Cichlidae), with discussion on relative length of haptoral sclerites. Folia Parasitologica, 50, 195–201.PubMedGoogle Scholar
  20. Pariselle A., Euzet L. 2009. Systematic revision of dactylogyridean parasites (Monogenea) from cichlid fishes in Africa, the Levant and Madagascar. Zoosystema, 31, 849–898.CrossRefGoogle Scholar
  21. Posada D. 2008. jModelTest: phylogenetic model averaging. Molecular Biology and Evolution, 25, 1253–1256. DOI: 10.1093/molbev/msn083.PubMedCrossRefGoogle Scholar
  22. Přikrylová I., Matějusová I., Jarkovský J., Gelnar M. 2008. Morphometric comparison of three members of the Gyrodactylus nemachili-like species group (Monogenea: Gyrodactylidae) on Barbatula barbatula L. in the Czech Republic, with a reinstatement of G. papernai Ergens & Bychowsky, 1967. Systematic Parasitology, 69, 33–44. DOI: 10.1007/s11230-007-9106-6.PubMedCrossRefGoogle Scholar
  23. Přikrylová I., Matějusová I., Musilová N., Gelnar M. 2009. Gyrodactylus species (Monogenea: Gyrodactylidae) on the cichlid fishes of Senegal, with the description of Gyrodactylus ergensi n. sp. from Mango tilapia, Sarotherodon galilaeus L. (Teleostei: Cichlidae). Parasitology Research, 106, 1–6. DOI: 10.1007/s00436-009-1600-0.PubMedCrossRefGoogle Scholar
  24. Přikrylová I., Blažek R., Vanhove M.P.M. 2012. An overview of the Gyrodactylus (Monogenea: Gyrodactylidae) species parasitizing African catfishes, and their morphological and molecular diversity. Parasitology Research, 110, 1185–1200. DOI: 10.1007/s00436-011-2612-0.PubMedCrossRefGoogle Scholar
  25. Roberts R., Sommerville C. 1980. Diseases of tilapia. In: (Eds. R.S.V. Pullin and R.H. Lowe-McConnell) The Biology and Culture of Tilapias. ICLARM Conference Proceedings, Manila, pp. 247–263.Google Scholar
  26. Rokicka M., Lumme J., Ziętara M. 2007. Identification of Gyrodactylus ectoparasites in Polish salmonid farms by PCR-RFLP of the nuclear ITS segment of ribosomal DNA (Monogenea, Gyrodactylidae). Acta Parasitologica, 52, 185–195. DOI: 10. 2478/s11686-007-0032-1.CrossRefGoogle Scholar
  27. Shinn A.P., Harris P.D., Cable J., Bakke T.A., Paladini G., Bron J.E. Editors. 2010. GyroDb. World Wide Web electronic publication., version (06/2010).
  28. Sinnappah N.D., Lim L.H.S., Rohde K., Tinsley R., Combes C., Verneau O. 2001. A paedomorphic parasite associated with a neotenic amphibian host: phylogenetic evidence suggests a revised systematic position for Sphyranuridae within anuran and turtle polystomatoineans. Molecular Phylogenetics and Evolution, 18, 189–201.PubMedCrossRefGoogle Scholar
  29. Tamura K., Peterson D., Peterson N., Stecher G., Nei M., Kumar S. 2011. MEGA: Molecular Evolution Genetics Analysis Isung Maximum Likelihood Distance, and Maximum Parsimony Methods. Molecular Biology and Evolution, 28, 2731–2739. DOI: 10.1093/molbev/msr121. (Accepted February 15, 2012)PubMedCrossRefGoogle Scholar
  30. Vanhove M.P.M., Snoeks J., Volckaert F.M.P., Huyse T. 2011. First description of monogenean parasites in Lake Tanganyika: the cichlid Simochromis diagramma (Teleostei, Cichlidae) harbours a high diversity of Gyrodactylus species (Platyhelminthes, Monogenea). Parasitology, 138, 364–380. DOI: 10.1017/S0031182010001356.PubMedCrossRefGoogle Scholar
  31. Ziętara M.S., Lumme J. 2003. The crossroads of molecular, typological and biological species concepts: two new species of Gyrodactylus Nordmann, 1832 (Monogenea: Gyrodactylidae). Systematic Parasitology, 55, 39–52. DOI: 10.1023938415148.PubMedCrossRefGoogle Scholar

Copyright information

© Versita Warsaw and Springer-Verlag Wien 2012

Authors and Affiliations

  1. 1.Department of Botany and Zoology, Faculty of ScienceMasaryk UniversityBrnoCzech Republic

Personalised recommendations