Randall, C.F. and Bromage, N. and Duston, J. and Symes, J. (1998) Photoperiod-induced phase-shifts of the endogeneous clock controlling reproduction in the rainbow trout: a circannual phase-response curve. Journal of Reproduction and Fertility, pp. 399-405
| Species | Development state | Trait | Primary Data | Secondary Data |
| Oncorhynchus mykiss | Spawning conditions | Spawning period duration | Reproduction in the rainbow trout is an annual event, with spawning confined to a brief (typîcally 6-8 week) period each year | 7.0 weeks |