Open AccessINDUCED SEX INVERSION, MATURATION, SPAWNING AND EMBRYOGENY OF THE PROTOGYNOUS GROUPER, Mycteroperca microlepis
Author(s) -
Roberts Daniel E.,
Schlieder Rodric A.
Publication year - 1983
Publication title -
journal of the world mariculture society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.655
H-Index - 60
eISSN - 1749-7345
pISSN - 0735-0147
DOI - 10.1111/j.1749-7345.1983.tb00116.x
Subject(s) - grouper , biology , zoology , human fertilization , epinephelus , blastula , fishery , embryogenesis , anatomy , fish <actinopterygii> , embryo , gastrulation
Female gag ( Mycteroperca microlepis ) were collected from the Eastern Gulf of Mexico, maintained in closed systems and spawned. Sex inversion of this protogynous grouper was induced with oral application of methyl‐testosterone. Ovotestes of transitional males were described. Photo‐period, temperature, and hormome application were utilized to induce maturation and ovulation of females. Approximately 26,000 eggs were produced in 2 spawns. Fertilization rate was 50%. Larvae hatched after 45 hours at 21.0°C. Embryonic and early larval stages were described.