Jobling, M. and Beresford, N. and Nolan, M. and Rodgers-Gray, T. and Brighty, G.C. and Sumpter, J.P. and Tyler, C.R. (2002) Altered sexual maturation and gamete production in wild roach (Rutilus rutilus) living in rivers that receive treated sewage effluents. Biology of reproduction, pp. 272-281
| Species | Development state | Trait | Primary Data | Secondary Data |
| Rutilus rutilus | Female | Age at sexual maturity | All female fish of 4 yr or older from both reference sites in the autumn were undergoing sexual maturation | 4.0 year |
| Rutilus rutilus | Spawning conditions | Spawning season | One to coincide with the annual spawning (spring sampling: Aire, n = 44, 18 May 1998; Nene, n = 70, 22 May, 1998; refrence 3, n = 51, 19 May 1998) | ['April', 'May', 'June'] |
| Rutilus rutilus | Spawning conditions | Spawning period duration | Takes place in the spring over 1 or 2 days | 1.0 weeks |
| Rutilus rutilus | Spawning conditions | Mating system | Group spawners | Promiscuity |
| Rutilus rutilus | Spawning conditions | Spawning release | Single event | Total |