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Table 5 Parameters related with the development of the gonad of gilthead seabream at end of the second reproductive cycle/beginning of the third reproductive cycle.

From: Testicular involution prior to sex change in gilthead seabream is characterized by a decrease in DMRT1 gene expression and by massive leukocyte infiltration

Months Testicular stages Ovarian stages GSI
(%)
Ovarian ratio
(%)
Ovarian cell diameter means
(μm)
Ovarian nuclear diameter means
(μm)
Acidophilic granulocytes (%)
October No further development 0.82 ± 0.10 97.9 ± 0.4 58.6 ± 2.0 28.2 ± 1.1 3.1 ± 0.7
  No further development Growth: vitellogenic oocytes at secondary yolk vesicle and tertiary yolk vesicle stages    101.2 ± 5.7 51.2 ± 2.4  
November   1.72 ± 0.13  
  Spermatogenesis Atretic follicles
Oogonia
Pre-perinuclear oocytes
Early and late perinuclear oocytes
Vitellogenic oocytes at yolk vesicle stage