Conand Chantal auteur aut IRD text journalArticle eng text/pdf reformatted digital access The reproductive biology of nine species of aspidochirote holothurians from the majour communities of the New Caledonian lagoon has been analysed. The data were obtained from monthly sampling from 1978 to 1982 of their populations on reef slopes and passes for Holothuria nobilis, H. fuscogilva, H. fuscopuctata and Thelenota ananas# in the inner lagoon for #Stichopus variegatus, H. scabra and H. scabra versicolor and on reef flats for Actynoptyga mauritiana, A. echinites and H. atra. The morphology and anatomy of the gonads and their annual cycle are described. The reproductive cycles, composed of the five phases of gonad growth, maturing, spawning, post spawning and resting, were determined from the changes in the sexual stages, the gonad indices and the percentage of indeterminate sex. Three main reproductive patterns are recognized, annual cycles with spawning occuring during the warm season or during the cool season and a semiannual cycle. (D'après résumé d'auteur) specialized LAGON HOLOTHURIE REPRODUCTION SEX RATIO MATURITE SEXUELLE ETHOLOGIE CYCLE DE DEVELOPPEMENT NOUVELLE CALEDONIE 036MILMAR01 080ZOOGEN04 116 439-450 1993 0025-3162 https://www.documentation.ird.fr/hor/fdi:39879 10.1007/BF00350061 0025-3162 [F B39879] https://www.documentation.ird.fr/hor/fdi:39879 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39879.pdf IRD - Base Horizon / Pleins textes 1994-08-08 2015-07-02 fdi:39879 fre