Tam, W.H. and Roy, J.J. and Makaran, R. (1986) Ovarian cycle and plasma concentrations of oestrogen and vitellogenin on brook trout, Salvelinus fontinalis. Can. J. Zool., pp. 744-751
| Species | Development state | Trait | Primary Data | Secondary Data |
| Salvelinus fontinalis | Female | Onset of oogenesis | May-June | ['May', 'June'] |
| Salvelinus fontinalis | Female | Intensifying oogenesis activity | August-Sepember | ['August'] |
| Salvelinus fontinalis | Female | Maximum GSI value | 16-18% [Mid-October] | 17.0 percent |
| Salvelinus fontinalis | Female | Resting period | Oocyte development and yolk formation is relatively low from November until May | 7.0 months |