Table 3.
Feature of the ovarian area of the gonad of gilthead seabream at the end of the second reproductive cycle/beginning of the third reproductive cycle.
| Months | Types of cells present in the ovary | Cell diameter (μm) |
Nuclear diameter (μm) |
Cytoplasm | Nucleus | Follicle related structures |
| October | No further development | |||||
| Vitellogenic oocytes at secondary yolk vesicle stage * |
192.8 ± 9.5 | 89.0 ± 4.5 | Acidophilic globules distributed at the periphery Lipid dropped close to the nucleus |
Granulosa Zone radiate Theca cell layer | ||
| November | Vitellogenic oocytes at tertiary yolk vesicle stage * |
310.6 ± 24.9 | 114 ± 3.5 | Numerous eosinophilic globules | Granulosa Zone radiate Theca cell layer | |
| Atretic follicles ** |
Irregular in shape Numerous acidophilic and some basophilic granules |
Highly condensed and basophilic | Flattened cell monolayer | |||
*In November also appeared the germ cell types present in the ovary in October-July. These specimens are females.
**In November, the most developed vitellogenic oocytes undergoes an atretic process. These specimens are males.