[en] As the majority of coral reef fishes, the Convict Surgeonfish Acanthurus triostegus (Acanthuridae) has a complex life cycle that involves an ontogenetic change in morphology, physiology and behaviour as its pelagic larval stage colonizes the benthic habitat. Few studies are devoted to the changes in skeleton during the settlement phase of coral reef fishes. In the present study, we highlighted an unexpected scales development in A. trisostegus just after the reef settlement. At settlement (t0), A. triostegus showed calcified and very thin vertical plates, lying in the dermis on the whole body. During the first 9 days after settlement, thin vertical plates regressed and adult scales began to appear simultaneously. At 12 days post-settlement, the whole body was covered with small scales. Overall, such a rapid skeletal transformation is an example of morphological changes dealing with metamorphosis of coral reef fishes.
Research center :
Laboratoire de Morphologie Fonctionnelle et Evolutive
Disciplines :
Zoology
Author, co-author :
Frederich, Bruno ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Département des sciences et gestion de l'environnement
Lecchini, David
Vandewalle, Pierre ; Université de Liège - ULiège > Département des sciences et gestion de l'environnement > Morphologie fonctionnelle et évolutive
Language :
English
Title :
Evidence of an original scale development during the settlement phase of a coral reef fish (Acanthurus triostegus)
Publication date :
2010
Journal title :
Journal of Applied Ichthyology
ISSN :
0175-8659
eISSN :
1439-0426
Publisher :
Blackwell Publishing, Berlin, Germany
Volume :
26
Pages :
176-178
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
CRISP Program (Coral Reef Initiative in the South Pacific – C2A)
Funders :
CFB - Communauté française de Belgique [BE] ANR - Agence Nationale de la Recherche [FR]
Funding number :
ANR (ANR-06-JCJC-0012-01); MOM (06 PF 15)
Funding text :
Communauté Française de Belgique (Concours des bourses de voyage 2007)
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