Hamlet juvénile : indigo ou marbré ? ou hybride ?

Hamlet juvénile : indigo ou marbré ? ou hybride ?
Hamlet juvénile : indigo ou marbré ? ou hybride ?
  • Lieu de prise de vue : San Salvador, Bahamas vers 15 mètres
  • Date de prise de vue : 24/08/2009
  • Nom du photographe : Stéphane Orès
  • Agrandir l'image

Comment citer cette question :
https://doris.ffessm.fr/Forum/Hamlet-juvenile-indigo-ou-marbre-ou-hybride2

Réf : 3254

Stéphane ORES

Stéphane ORES le 26/08/09

Il me semble qu'il s'agit d'un juvénile de Hamlet (en raison des tâches noires et blanches sur le pédoncule caudal)
mais est ce un Hamlet indigo (Hypoplectrus indigo) ou un Hamlet marbré (Hypoplectrus puella) ?, ou un hybride ?    
je pencherais plutôt pour un indigo
merci
Stéphane ORES
0

Stéphane ORES le 28/08/09

oui il y a bien des H indigo et des H puella 
Jean-Michel SUTOUR
0

Jean-Michel SUTOUR le 27/08/09

Bonjour,


Jeune individu : oui pas de problème. Ce qui explique certainement sa taille inférieure à la moyenne.
Mais pour l'espèce, c'est pas facile. Car les hybrides viennent compliquer l'identification.
Le comportement et l'habitat sont parfois des infos permettant de pencher vers l'un ou l'autre.
Y avait il aussi des H puella dans la zone ?
Quant à H indigo, je ne l'ai jamais vu après 10 ans de plongée en Martinique.

Etre ou ne pas être H indigo, avec les hamlets telle est la question. (désolé)
JMS
0

le 27/08/09

Bonjour, et merci Dominique pour ta recherche
ces tâches noires et blanches sur le pédoncule caudal sont, d'après le Humann Deloach que j'ai emporté avec moi, typiques de tous les juvéniles de Hamlets
si les hamlets indigo, dont je vois pas mal d'exemplaires ici, font une quinzaine de cm, celui que j'ai photographié en faisait une dizaine de cm
celui de la photo doit être une forme de passage du juvénile vers l'indigo adulte...

toujours d'après le Humann Deloach, le hamlet indigo serait présent aux "caraïbes" mais rare
caraïbes sans précision, donc peut être pas les caraïbes du sud (comme les antilles françaises)?
Anne PROUZET
0

Anne PROUZET le 26/08/09

Si vous allez fouinez sur ce merveilleux site, DORIS, vous trouverez plusieurs fiches sur les hamlets (par exemple ici)  où ce phénomène d'hybridation entre les "espèces" est décrit.
Le hamlet indigo n'est pas signalé dans les Antilles françaises, on le trouve plus au nord (Floride, Bahamas).
Dominique BALDASSARI
0

Dominique BALDASSARI le 26/08/09

J'ai fouiné sur Internet et ton poisson ressemble + à l'"indigo", mais les rayures de la queue n'apparaissent que sur 1 photo... le mystère persiste...
A+
Domi

Dominique BALDASSARI
0

Dominique BALDASSARI le 26/08/09

Bonjour Stéphane,
D'après mes livres je pencherai pour le "puella", mais il est vrai que les lignes de la queue n'aparaissent pas sur mes photos
pourrais tu préciser la taille
A bientôt
Domi

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