Reef lichens ? bleaching ??

[MARTIN PECHEUX]

Dear all,
Pr. RAVEN, from Dundee University,
ask me about marine lichens (rare,
Lichinia, Arthopyrenia..). I never
heard of work on them in reefs. Any
specialists or reference ?
And the Bingo question : do they
bleach like all the other
photosynthetic symbioses
(cnidarians, mollusks, sponges,
forams, ascidians) ??
Thanks all,
Martin Pecheux
Nice University