Penaz, M. (1973) Embryonic development of the barb, Barbus barbus (Linnaeus, 1758). Zool. Listy, pp. 363-374
| Species | Development state | Trait | Primary Data | Secondary Data |
| Alburnoides bipunctatus | Spawning conditions | Spawning substrate | Lithophilous fishes | Lithophils |
| Barbus barbus | Egg | Oocyte diameter | The average size of the eggs was 1.95 prior to fertilisation | 1.95 mm |
| Barbus barbus | Egg | Egg size after water-hardening | 2.88 after fertilization | 2.88 mm |
| Barbus barbus | Egg | Egg adhesiveness | The chorion of ripe eggs is only feebly sticky | Adhesive |
| Barbus barbus | Egg | Incubation time | The moment at which 50% of embryos are hatched was 194 hours at 16°C, 131.7 hours at 18°C; 98 hours at 19.67°C and only 91 at 20.52°C [in other stidy described as 6 days at 17.1°C] | 50.0 days |
| Barbus barbus | Egg | Temperature for incubation | Incubated at 16, 18, 19.67, and 20.52°C | 16.0 °C |
| Barbus barbus | Egg | Degree-days for incubation | 129.3 DD [At 16°C], 98.8 [At 18°C], 80.3 |At 19.67°C] and 77.8 [At 20.52°C]; in other studies described as 97.6 DD at 17.1°C | 129.3 °C * day |
| Barbus barbus | Larvae | Initial larval size | Mean total length at the time of maximum hatching: 8.99 [When incubated at 18°C], 8.82 [At 19.67°C], 8.31 [At 20.52°C] and 8.96 [At 16.0°C] | 8.99 mm |
| Barbus barbus | Larvae | Larvae behaviour | The hatched embryos lie on one side motionless, showing quite isolated, feeble movements. However, they respond to external stimuli (by light or touch) by very rapid movements along the bottom of the tank. They show no tendency towards hiding in shelters or dark places | Demersal |
| Barbus barbus | Larvae | Reaction to light | The behaviour of the embryos and their response to light changes agasint the preceding, i.e. hatched, developmental stage. Their response to light is negative, the mebryos gathering in the darkest places of the aquarium; if the latter was provided with a simple shelter, the embryos gathered in this space. Towards the end of this stage , the movement activity of the mebryos increases. They rise to the water surface by rapid and intensive movements and then slowly sink passively dow to the bottom of the tank where they rest motionless, lying one one side. | Photopositive |
| Barbus barbus | Larvae | Onset of exogeneous feeding | In the barb, the embryos pass to pelagic life habits and to exogenous food as late as between the 17th and 28 th day of developement, that is on the 11th to 19th day after hatching, depending on water temperature, about 16°C | 17.0 °C * day |
| Barbus barbus | Spawning conditions | Spawning substrate | Lithophilous fishes | Lithophils |
| Chondrostoma nasus | Spawning conditions | Spawning substrate | Lithophilous fishes | Lithophils |
| Leuciscus cephalus | Spawning conditions | Spawning substrate | Lithophilous fishes | Lithophils |