Biology & Ecology - Parasite behaviour & behavioural ecology

esearch projects in this area focus on the dispersive and infective stages of the parasite, for example, the salmon louse L. salmonis, other crustacean pathogens (nauplii, metanauplii and copepodids), monogenean oncomiracidia and strigeoid digenean cercariae. In vitrostudies are used to investigate the responses of the larvae to environmental variables. Using image analysis techniques, the movement of transmission stages, such as copepodids and cercariae, are observed and quantified in relation to a variety of stimuli. Work has also been carried out on feeding behaviour in salmon lice. Behavioural studies are supported by ultrastructural studies of sensory structures.

Selected References

  1. Bron, J.E., Shinn, A.P. & Sommerville, C. (2000) A description of moulting in the chalimus larva of the salmon louse Lepeophtheirus salmonis (Krøyer, 1837) (Copepoda, Caligidae). Contributions to Zoology, 69 (1/2) 31-38.
  2. Bell, A.S., Sommerville, C. & Gibson, D.I. (1999) Cercarial emergence of Ichthyocotylurus erraticus (Rudolphi, 1809), I. variegatus (Creplin, 1825) and Apatemon gracilis (Rudolphi, 1819) (Digenea: Strigeidae): contrasting responses to light: dark cycling). Parasitology Research, 85, 347-392.
  3. Bron, J.E., Sommerville, C. & Rae, G.H. (1993) Aspects of the behaviour of copepodid larvae of the salmon louse Lepeophtheirus salmonis (Kroyer, 1837). In: “Pathogens of Wild and Farmed Fish: Sea Lice”. Boxshall, G. & Defaye, D. (eds.) Ellis Horwood Ltd., 125-142.
  4. Bron, J.E., Sommerville, C., Jones M. & Rae, G.H. (1991). The settlement and attachment of early stages of the salmon louse, Lepeophtheirus salmonis (Copepoda: Caligidae) on the salmon host Salmo salar. Journal of Zoology (London), 224, 201-212.
  5. Sommerville, C. & Iqbal, N.A.M. (1991) The process of infection, migration, growth and development of Sanguinicola inermis Plehn, 1905 (Digenea: Sanguinicolidae) in carp Cyprinus carp L. Journal of Fish Diseases, 14, 211-219.