[Reproductive cycle and index of condition used for Melongena corona (Mollusca: Gastropoda)].
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).
Zetina Zárate
A I
AI
Laboratorio de Biología Marina, CINVESTAV-IPN Unidad Mérida AP 73--Cordemex, 97310, Mérida, Yucatán, México.
Aldana Aranda
D
D
Brule
T
T
Baqueiro Cárdenas
E
E
D000818:Animals; D005260:Female; D008297:Male; D008974:Mollusca / Q000502:physiology; D012098:Reproduction / Q000502:physiology; D012621:Seasons; D012737:Sex Factors