title: [Reproductive cycle and index of condition used for Melongena corona (Mollusca: Gastropoda)].
abstract: Melongena corona bispinosa was studied in Yucatán, México (21 degrees 16' N, 89 degrees 49' W) for a year. Males have reproductive peaks in February and December, and a post-copulation peak in June. Female peaks are in March and May, plus oviposition peaks in April and January. Males and females differ in the mean gonadosom ic index (F=13.79, p<0.05) but not in the dry tissue/shell weight (F=0.0902, p<0.05), dry tissue and total weight (F=0.2466, p<0.05) and dry tissue weight/internal shell volume (F=1.0565, p<0.05).
authors.affiliation: Laboratorio de Biología Marina, CINVESTAV-IPN Unidad Mérida AP 73--Cordemex, 97310, Mérida, Yucatán, México.
authors.forename: A I
authors.initials: AI
authors.lastname: Zetina Zárate
authors.forename: D
authors.initials: D
authors.lastname: Aldana Aranda
authors.forename: T
authors.initials: T
authors.lastname: Brule
authors.forename: E
authors.initials: E
authors.lastname: Baqueiro Cárdenas
mesh_terms: D000818:Animals; D005260:Female; D008297:Male; D008974:Mollusca / Q000502:physiology; D012098:Reproduction / Q000502:physiology; D012621:Seasons; D012737:Sex Factors