Thalassoma bifasciatum

Larvae of the tunicate Trididemnum solidum are most likely protected by didemnins like 44-46, cyclic depsipeptides that were initially identified from adults of this species [92]. The larvae are highly unpalatable to the wrasse Thalassoma bifasciatum, which rejected the larvae while readily consuming krill eyes that served as larval mimics. Coating one krill eye with the lipid soluble compounds from a single T. solidum larva rendered it as unpalatable as the larvae themselves. Reduced feeding was also observed when didemnin B (45) and nor-didemnin B (46) were administered to reef fishes in the field (Scheme 12) [92]. 

The Caribbean sacoglossan Costasiella ocellifera feeds on the green alga Avrainvillea longicaulis and sequesters the metabolite avrainvilleol (152) in its tissues. It deters feeding of the wrasse fish Thalassoma bifasciatum [118]. 

Pseudopterogorgia rigida Terpenoid (sesquiterpenes) Crude extract, curcuquinone, curcuhydroquinone m Deterred the fish Thalassoma bifasciatum [55]... 

Pterogorgia anceps - Poiar crude extract and unnamed compound indentified as 5 Deterrent against Thalassoma bifasciatum in iab. and natural assemblage of reef fish [64]... 

Pseudopterogorgia rigida Erythropodium caribaeorum Pterogorgia anceps and Eunicea asperula Crude extracts m Inhibited fish deterrence for Caribbean wrasse Thalassoma bifasciatum [92]... 

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