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2008-07-11 - Colloque/Présentation - poster - Anglais - 1 page(s)

Sheridan Christopher , Guppy Reia, Bythell John C, Rotjan Randi D, "Parrotfish as vectors of coral diseases – evaluation by comparison of bacterial populations" in 11th International Coral Reef Symposium, Fort Lauderdale, USA, 2008

  • Codes CREF : Pathologie générale (DI3230), Environnement et pollution (DI3840)

Abstract(s) :

(Anglais) The role of parrotfish as bio-eroders and grazers is well described, but examination of bacterial communities associated with parrotfish-inflicted lesions and parrotfish jaws suggest that they may also act as vectors of coral pathogens. The microbiological and genetic analyses of these microbial communities suggested a potential exchange of micro-organisms between parrotfish jaws and bites taken from live coral. However, the defence mechanisms of corals seemed sufficient to prevent both the penetration of these microbes within their tissues, and the resulting disease causation. Mucus secretion in particular appeared to be the predominant defence response to injury and possibly to the presence of foreign organisms.


Mots-clés :
  • (Anglais) Corallivory
  • (Anglais) Coral disease
  • (Anglais) Vector
  • (Anglais) Parrotfish