Baras, E. (1995) Thermal related variations of seasonal and daily spawning periodicity in Barbus barbus. Journal of fish biology, pp. 915-917
| Species | Development state | Trait | Primary Data | Secondary Data |
| Barbus barbus | Spawning conditions | Spawning season | A first spawning activity starts 3 May. A second one on 10 May, and no further spawning activity was observed from 13 May till early summer (mid-July) | ['May', 'July', 'August', 'September'] |
| Barbus barbus | Spawning conditions | Spawning period duration | 1-2 twice within a spawning season | 1.5 weeks |
| Barbus barbus | Spawning conditions | Spawning temperature | Start at 13.5, but main activity at 15-20 | 17.5 °C |
| Barbus barbus | Spawning conditions | Nycthemeral period of oviposition | Diurnal spawner but also daytime and night [Nocturnal spawning may thus be dependent on high daily thermal amplitudes] | Day |
| Barbus barbus | Spawning conditions | Spawning release | Females spawn only once within the season in the River Ourthen even under exceptionally high temperatures | Total |