The dusky grouper, Epinephelus marginatus, is a protogynous hermaphrodite teleost. Only a few data are reported in literature on gonad morphology and sex maturity stages in this species. In the dusky grouper, the reproductive season is considered to be relatively short. In the Mediterranean sea the reproductive season of E. marginatus was reported in July-August. A synchronous development pattern of gonads was described in E. marginatus, while oocytes maturation in “waves” was suggested for E. aeneus (Bouain and Siau, 1983), E. tauvina (Johannes, 1978) and E. morio (Randall and Brock, 1960). Aim of this study was to describe maturity stages and periodicity of spawning in wild Epinephelus marginatus in the south Mediterranean area.
Ovarian maturity stages and periodicity of reproduction in the dusky grouper (Epinephelus marginatus, Lowe 1834)
MASSARI, ALESSANDRA;MANDICH, ALBERTA
1999-01-01
Abstract
The dusky grouper, Epinephelus marginatus, is a protogynous hermaphrodite teleost. Only a few data are reported in literature on gonad morphology and sex maturity stages in this species. In the dusky grouper, the reproductive season is considered to be relatively short. In the Mediterranean sea the reproductive season of E. marginatus was reported in July-August. A synchronous development pattern of gonads was described in E. marginatus, while oocytes maturation in “waves” was suggested for E. aeneus (Bouain and Siau, 1983), E. tauvina (Johannes, 1978) and E. morio (Randall and Brock, 1960). Aim of this study was to describe maturity stages and periodicity of spawning in wild Epinephelus marginatus in the south Mediterranean area.
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