Tristan Wrasse (Conca)
Tristan wrasse or rainbow wrasse are known locally as Conca.
They are very common in the kelp forest and amongst smaller seaweeds at the top islands of Tristan, Nightingale and Inaccessible, but are relatively rare at Gough.
The males, females and juveniles differ in their colour. Interestingly older females change sex and become male in later life!
IUCN/ Conservation Status — Least Concern
Length — up to 3.9cm
Life span —
Sightings around Tristan islands – Common in the kelp around all the islands expect Gough.
Marine life on Tristan
The waters surrounding the Tristan islands are home to a diverse range of fish and invertebrates, including the commercially valuable crayfish.