Parasites - Gyrodactylids

The Parasitology Group continues to investigate clinical outbreaks of gyrodactylosis, not only among salmonids where G. salaris is suspected, but also, notably, among pond-reared populations of Nile tilapia, Oreochromis niloticus, which are responsible for the high mortality of juvenile fish in a number of countries. Outbreaks of gyrodactylosis attributed to G. cichlidarum, for example, have been reported from at least 15 different countries. Research aims to determine whether outbreaks are due to the action of a single species or a species complex through a comparison of morphological and phylogenetic data.

Gyrodactylid-based research also includes studies on the mechanisms of attachment, methods of semi-automated recognition, the description of new species, and, the development of a web-based contact site, database and associated tools to assist in the global study of Gyrodactylus and related.

Selected References

  1. Christison, K.W., Shinn, A.P. & van As, J.G. (2005) Gyrodactylus thlapi n. sp. (Monogenea) from Pseudocrenilabrus philander philander (Weber, 1897) (Cichlidae) from the Okavango Delta, Botswana. Systematic Parasitology, 60 (3), 165-173.
  2. Harris, P.D., Shinn, A.P., Cable, J. & Bakke, T.A. (2004) A complete host-species list for the genus Gyrodactylus (Monogenea, Gyrodactylidae). Systematic Parasitology, 59, 1-27.
  3. Shinn, A.P., Hansen, H., Bakke, T.A. & Bachmann, L. (2004) Morphometric differences between laboratory reared mt clades of Gyrodactylus salaris and G. thymalli (Monogenea). Folia Parasitologica, 51, 239-252.
  4. Longshaw, M., Pursglove, M. & Shinn, A.P. (2003) Gyrodactylus quadratidigitus n. sp. (Monogenea: Gyrodactylidae), a parasite of the leopard-spotted goby, Thorogobius ephippiatus (Lowe, 1839), from the south-western coast of the UK. Systematic Parasitology, 55 (2), 151-157.
  5. Shinn, A.P., Sommerville, C., Bron, J .E. & Gibson, D.I. (2003) Notes on the mechanism of attachment in species of the genus Gyrodactylus Nordmann, 1832. Invertebrate Biology, 122, 1-11.
  6. Shinn, A.P., Gibson, D.I. & Sommerville, C. (2001) The discrimination of Gyrodactylus salaris from species of Gyrodactylus parasitising British salmonids using novel morphometric parameters. A scanning electron microscopy study. Journal of Fish Diseases, 24, 83-97.
  7. McHugh, E.S., Shinn, A.P. & Kay, J.W. (2000) Discrimination of G. salaris and G. thymalli (Monogenea) using statistical classifiers applied to morphometric data. Parasitology, 121, 315-323.
  8. Shinn, A.P., Kay, J.W. & Sommerville, C. (2000) The use of statistical classifiers for the discrimination of species of the genus Gyrodactylus (Monogenea) parasitising salmonids. Parasitology, 120, 1-9.
  9. Kay, J.W., Shinn, A.P. & Sommerville, C. (1999) Towards an automated system for the identification of notifiable pathogens. Parasitology Today, 15 (5), 201-206.
  10. Turgut, E., Shinn, A.P., Yeomans, W.E. & Wootten, R. (1999) Gyrodactylus sommervillae n. sp. (Monogenea) from Abramis brama (L., 1758) (Cyprinidae) in Great Britain. Systematic Parasitology, 43, 59-63.
  11. Shinn, A.P., Gibson, D.I. & Sommerville, C. (1998) Chaetotaxy of members of the Gyrodactylidae (Monogenea), with comments upon their systemic relationships with the Monopisthocotylea and Polypisthocotylea. Systematic Parasitology, 39, 81–94.
  12. Shinn, A.P., Sommerville, C. & Gibson, D.I. (1998) The application of chaetotaxy in the discrimination of Gyrodactylus salaris Malmberg, 1957 (Gyrodactylidae: Monogenea) from species of the genus parasitising British salmonids. International Journal of Parasitology, 28, 805–814.
  13. Shinn, A.P., Sommerville, C. & Gibson, D.I. (1997) Argentophilic structures as a diagnostic criterion for the discrimination of species of the genus Gyrodactylus von Nordmann (Monogenea). Systematic Parasitology, 37, 47-57.
  14. Shinn, A.P., des Clers, S., Gibson, D.I. & Sommerville, C. (1996) Multivariate analysis of morphometrical features fromGyrodactylus spp. (Monogenea) parasitising British salmonids:Light microscope based studies. Systematic Parasitology, 33, 115- 125.
  15. Shinn, A.P., Sommerville, C. & Gibson, D.I. (1995) Distribution and characterization of Gyrodactylus Nordmann, 1832 (Monogenea) parasitizing British salmonids in the UK, and their discrimination from G. salaris Malmberg, 1957. Journal of Natural History, 29, 1383-1402.
  16. Shinn, A.P., Gibson, D.I. & Sommerville, C. (1995) A study of the composition of the sclerites of Gyrodactylus Nordmann, 1832 (Monogenea) using X-ray elemental analysis. International Journal of Parasitology, 25, (7), 797-805.
  17. Ferraz, E., Shinn, A. & Sommerville, C. (1994) Gyrodactylus gemini sp. n. (Monogenea, Gyrodactylidae) parasite of Semaprochilodus taeniurus (Steindachner, 1882) from the Venezuelan Amazon. Systematic Parasitology, 29, 217-222.
  18. Shinn, A., Gibson, D.I. & Sommerville, C. (1993) An SEM study of the haptoral sclerites of the genus Gyrodactylus Nordmann 1832 (Monogenea) following extraction by digestion and sonication techniques. Systematic Parasitology, 25, 135-144.