Table 2 Measurements of B. altianalis oocytes for fish obtained from Lake Edward. Data are shown as mean ± SD
Lake Edward | ||||||
|---|---|---|---|---|---|---|
No | Oocyte type | Average cell size (μm) recorded for diameter | Nucleus size (μm) recorded for diameter | Estimated number of nucleoli for each egg | Ratio between oocyte and nuclei sizes | Total number of oocytes measured |
1 | Primary growth oocytes | |||||
Oogonia | 14.14 ± 2.97 | 9.21 ± 1.76 | – | 0.65 ± 0.83 | 194 | |
Chromatin nucleolar oocytes | 51.10 ± 12.11 | 22.14 ± 5.10 | 3.89 ± 2.867 | 0.44 ± 0.10 | 159 | |
Perinucleolar oocytes | 162 ± 52.98 | 72.76 ± 27.13 | 17.66 ± 5.39 | 0.42 ± 0.13 | 259 | |
2 | Cortical alveolar | 325.30 ± 45.34 | 122.75 ± 29.11 | 34.04 ± 13.16 | 0.38 ± 0.08 | 100 |
3 | Vtg1 oocytes | 530.64 ± 91.83 | 125.47 ± 37.35 | 46.97 ± 28.28 | 0.24 ± 08 | 80 |
4 | Vtg2 oocytes | 724.12 ± 120.56 | 166.81 ± 51.00 | 38.61 ± 14.25 | 0.22 ± 0.06 | 92 |
5 | Vtg3 oocytes | 1046.21 ± 397.41 | 155.26 ± 68.46 | 38.6 ± 13.35 | 0.14 ± 0.04 | 111 |
6 | Mature oocytes | 1510.67 ± 182 | 196.34 ± 42.70 | 26.14 ± 13.40 | 0.143 ± 0.04 | 85 |