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Comportements reproducteurs du labre-oiseau Gomphosus caeruleus dans un récif de l’île de La Réunion : mode de reproduction, facteurs environnementaux et alternance des stratégies reproductrices.


By Bruno - Posted on 12 January 2018

TitleComportements reproducteurs du labre-oiseau Gomphosus caeruleus dans un récif de l’île de La Réunion : mode de reproduction, facteurs environnementaux et alternance des stratégies reproductrices.
Publication TypeJournal Article
Year of Publication2018
AuthorsDesvignes T, Bourjon P, Chanet B
JournalComptes Rendus Biologies
Volume2018
Issue34
Start Page43
Pagination43-60
Date Published01/2018
Abstract

The green birdmouth wrasse Gomphosus caeruleus is present all year round on the coral reefs of Reunion Island (Indian Ocean). A group of individuals was followed on one of these reefs with the objective of studying the reproduction mode of the species, the influence of
environmental factors, and social behaviors on the control of reproduction. Our observations revealed that G. caeruleus is, like many Labridae, a protogynous hermaphrodite species, probably diandric, that the reproduction of G. caeruleus is, like in other reef fish species, influenced by the lunar cycle with a peak of reproductive activity during waxing gibbous phase, and that G. caeruleus displays social behavior leading to alternating haremic mating system on a single territory and lek-like mating systems without aggressions between males. These observations enhanced our knowledge of the
reproduction of Labridae and reef species.

DOIhttps://doi.org/10.1016/j.crvi.2017.11.004