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Table 2
Macroscopic and microscopic descriptions of the phases in the reproductive cycle of P. blennoides.
| Stage | Macroscopic | Microscopic |
|---|---|---|
| Immature/Juvenile | Small gonads and often clear. Slightly pink for ovaries and transparent for testes. Filamentous and blood vessels indistinct. | Oogonia (14.13 μm) and primary growth oocytes (PG) 23.95 μm are present in the ovary (Fig. 11a). Thin ovarian wall and little space between oocytes. Testes of juvenile males contain compact homogeneous seminiferous tubules with spermatogonia (Spg: 3.62 μm) bounded by a thin layer of connective tissue (Fig. 11e) |
| Developing | Enlarging gonads with blood vessels and a color variation as maturity progresses. Pink to red and brown for females and white ivory for males. | Initial vitellogenic oocytes (Vtg I) (109.07 μm) are present with primary growth oocytes (PG) in ovaries (Fig. 11b & c). Spermatocysts evident along lobules. Spg. Spc. Spd. and Spz can be present in spermatocysts. Spz not present in lumen of lobules or in sperm ducts (Fig. 11f). |
| Spawning capable | Testes are large and white with reactive pressure on abdomen. | Testes presents a rupture and a confluence of seminiferous tubules to release spermatozoa (Spz:1.06 μm) in the direction of the deferens duct (Fig. 11g & h). |
| Regenerating | Empty flanges inactive gonads much-reduced volume with no reaction to abdominal pressure and richly vascularized. | Only primary growth oocyte (62.90μm) with thick ovarian wall (Fig. 11d.). Proliferation of spermatogonia throughout testes and small amount of residual Spermatozoa occasionally present in lumen of lobules. |
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