@article{fdi:010054362, title = {{D}iet and gut microorganisms of {M}unidopsis squat lobsters associated with natural woods and mesh-enclosed substrates in the deep {S}outh {P}acific}, author = {{H}oyoux, {C}. and {Z}binden, {M}. and {S}amadi, {S}arah and {G}aill, {F}. and {C}omp{\`e}re, {P}.}, editor = {}, language = {{ENG}}, abstract = {{S}quat lobsters of the deep-sea genus {M}unidopsis are among the most regularly reported crustaceans associated with deep-sea wood falls. {T}hey are often thought to indirectly use these substrates for preying or scavenging wood-associated molluscs or annelids, albeit the species {M}. andamanica has been recently highlighted as a xylophagous specialist. {I}n this work, we examined the feeding appendages, gut contents and gut lining of {M}. nitida, {M}. bispinoculata and {M}. pilosa specimens from natural sunken woods and compared them with specimens of the same species having survived and grown on different hard-to-digest substrates (i.e. woods, turtle shells and whale bones) experimentally submerged in the deep {S}outh {P}acific. {I}n both cases, all three species directly ingest large wood fragments deeply degraded by microorganisms, but {M}. nitida also feeds on experimentally submerged whale bone and turtle shell fragments. {M}unidopsis nitida is also the only species to host a resident gut microflora, but the bacterial morphotypes vary according to the ingested substrate. {T}he results suggest that the three species are most probably opportunistic, bacterivorous detritivores and that {M}. nitida could be at the beginning of an evolutionary process towards xylophagy within the genus {M}unidopsis.}, keywords = {{E}cology ; evolution ; {M}unidopsis ; symbiosis ; wood-falls ; xylophagy ; {VANUATU} ; {NOUVELLE} {CALEDONIE} ; {SALOMON} ; {PACIFIQUE} {SUD}}, booktitle = {}, journal = {{M}arine {B}iology {R}esearch}, volume = {8}, numero = {1}, pages = {28--47}, ISSN = {1745-1000}, year = {2012}, DOI = {10.1080/17451000.2011.605144}, URL = {https://www.documentation.ird.fr/hor/fdi:010054362}, }