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Chemical spying in coral reef fish larvae at recruitment
Roux, N; Brooker, M; Lecellier, G; Berthe, C; Frédérich, B.; Banaigs, B; Lecchini, D (2015). Chemical spying in coral reef fish larvae at recruitment. C. R., Biol. 338(10): 701-707. dx.doi.org/10.1016/j.crvi.2015.05.004
In: Comptes Rendus. Biologies. Elsevier: Paris. ISSN 1631-0691, more
Peer reviewed article  

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Keyword
    Marine
Author keywords
    Sensory mechanisms; Communication; Spying; Chemical cues; Coral reeffish larvae

Authors  Top 
  • Roux, N.
  • Brooker, R.
  • Lecellier, G.
  • Berthe, C.
  • Frédérich, B., more
  • Banaigs, B.
  • Lecchini, D.

Abstract
    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).

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