Family Acanthasteridae – Acanthaster planci (Linnaeus,1758)
described as: Asterias planci Syst.Nat.,ed.10,p.823.
Genus altered by: Verrill,1914. Shallow water starfishes, N.Pacific
This well known species was not abundant at Heron or Wistari Reefs during the period of the present study. Only a few subtidal specimens were encountered. This can be contrasted with studies further north at John Brewer Reef on the Great Barrier Reef. Not all northern reefs undergo outbreaks of starfish. For example compare John Brewer Reef with Norman, Hastings and Saxon Reefs.