Penaz, M. (1971) Differences in mortality rate and development in feeding and starvating larvae of Chondrostoma nasus and Barbus barbus (Pisces). Zoologicke Listy, pp. 85-84
| Species | Development state | Trait | Primary Data | Secondary Data |
| Barbus barbus | Egg | Incubation time | Mean of 4 days 3 hours | 4.0 days |
| Barbus barbus | Egg | Degree-days for incubation | Mean of 74.6 | 74.6 °C * day |
| Barbus barbus | Larvae | Initial larval size | L=9.0, for eleuterembryo in developmental stage A, 2days after hatching (6 days from the beginning of development) | 9.0 mm |
| Barbus barbus | Larvae | Temperature during larval development | Reared at temperature between 20-21°C, close to natural conditions | 20.5 °C |
| Barbus barbus | Larvae | Full yolk-sac resorption | Termination of the yolk sac resorption 142 DD, or 8 days after hatching | 142.0 °C * day |
| Barbus barbus | Larvae | Onset of exogeneous feeding | Beginning of the exogeneous feeding at 102 DD, or 6 days after hatching | 102.0 °C * day |
| Chondrostoma nasus | Egg | Incubation time | 7 days and 16 hours | 7.0 days |
| Chondrostoma nasus | Egg | Degree-days for incubation | Mean of 125.5 | 125.5 °C * day |
| Chondrostoma nasus | Larvae | Larvae behaviour | The starvating larvae show limited mobility already during the terminal phase of resorption of their yolk sac and mostly keep at the bottom of the aquarium, whereras the feeding larvae move throughout the water column and near water surface. During the last two or three days of their life, the fishes were in agony, showing but quite feeble signs of life. | Demersal |
| Chondrostoma nasus | Larvae | Temperature during larval development | Reared at temperature between 15-18, close to natural conditions | 16.5 °C |
| Chondrostoma nasus | Larvae | Full yolk-sac resorption | Termination of the yolk sac resorption: 196 DD, or 13 days after hatching | 196.0 °C * day |
| Chondrostoma nasus | Larvae | Onset of exogeneous feeding | About 130, or 10 days after hatching | 130.0 °C * day |
| Leucaspius delineatus | Larvae | Initial larval size | TL = 6.1, for eleuterembryo in developental stage A, just hatched (6 days 5 hours from the beginning of development) | 6.1 mm |
| Esox lucius | Larvae | Onset of exogeneous feeding | Pike larvae die within three days after the resorption of their yolk sac if no food is available to them | No data |