Chemical spying in coral reef fish larvae at recruitment.
When fish larvae recruit back to a reef, chemical cues are often used to find suitable habitat or to find juvenile or adult conspecifics. We tested if the chemical information used by larvae was intentionally produced by juvenile and adult conspecifics already on the reef (communication process) or whether the cues used result from normal biochemical processes with no active involvement by conspecifics ("spying" behavior by larvae). Conspecific chemical cues attracted the majority of larvae (four out of the seven species tested); although while some species were equally attracted to cues from adults and juveniles (Chromis viridis, Apogon novemfasciatus), two exhibited greater sensitivity to adult cues (Pomacentrus pavo, Dascyllus aruanus). Our results indicate also that spying cues are those most commonly used by settling fishes (C. viridis, P. pavo, A. novemfasciatus). Only one species (D. aruanus) preferred the odour of conspecifics that had had visual contact with larvae (communication).
['Roux|Natacha|N|', 'Brooker|Rohan M|RM|', 'Lecellier|Gaël|G|', 'Berthe|Cécile|C|', 'Frédérich|Bruno|B|', 'Banaigs|Bernard|B|', 'Lecchini|David|D|']
D000819:Animal Communication D063147:Animal Distribution D000818:Animals D002755:Choice Behavior D057894:Coral Reefs D017753:Ecosystem D005399:Fishes D010675:Pheromones D013045:Species Specificity
Spying Coral reef fish larvae Chemical cues Communication Interception de l’information Larves de poissons coralliens Mécanismes sensoriels Sensory mechanisms Stimuli chimiques