Kucharczyk, D. and Kujawa, R. and Mamcarz, A. and Targonska-Dietrich, K. and Wyszomirska, E. and Glogowski, J. and Szabo, T. (2005) Induced spawning in bream (Abramis brama L.) using pellets containing GnRH. Czech Journal of Animal Sciences, pp. 89-95
| Species | Development state | Trait | Primary Data | Secondary Data |
| Abramis brama | Egg | Temperature for incubation | At 20-21°C, which was found as an optimal temperature for bream embryonic development | 20.5 °C |
| Abramis brama | Egg | Degree-days for incubation | The incubation time to mass hatching was 90-100 degree-days (D°) | 95.0 °C * day |
| Abramis brama | Spawning conditions | Spawning season | May and June on bream spawning grounds in the Kortowskie Lake | ['May', 'June'] |
| Abramis brama | Spawning conditions | Spawning temperature | Our five years observations showed that the temperature during the spawning time (May and June) of bream fluctuated on spawning grounds between 13.5 and 26.5°C | 13.5 °C |