Gozlan, R.E. and Copp, G.H. and Tourenq, J.N. (1999) Early development of the sofie, Chondrostoma toxostoma. Environ. Biol. Fish., pp. 67-77
| Species | Development state | Trait | Primary Data | Secondary Data |
| Chondrostoma nasus | Larvae | Reaction to light | Early photophobia | Photopositive |
| Chondrostoma nasus | Spawning conditions | Spawning water type | Fairly strong current | Flowing or turbulent water |
| Chondrostoma nasus | Spawning conditions | Spawning depth | Shallow areas: 20-30 cm | 25.0 m |
| Chondrostoma nasus | Spawning conditions | Spawning substrate | Rock and gravel | Lithophils |
| Chondrostoma toxostoma | Egg | Egg size after water-hardening | Mean 2.1, range 1.9-2.5 [After activation] | 2.2 mm |
| Chondrostoma toxostoma | Egg | Egg Buoyancy | Demersal [eggs are deposited on boulders in deep pools] | Demersal |
| Chondrostoma toxostoma | Egg | Egg adhesiveness | Becoming adhesive | Adhesive |
| Chondrostoma toxostoma | Egg | Incubation time | 8 days at 15-18.5°C | 16.75 days |
| Chondrostoma toxostoma | Egg | Temperature for incubation | 15-18.5 | 16.75 °C |
| Chondrostoma toxostoma | Egg | Degree-days for incubation | 120-150 | 135.0 °C * day |
| Chondrostoma toxostoma | Larvae | Initial larval size | Mean 6.32, range 4.1-8.1 | 6.1 mm |
| Chondrostoma toxostoma | Larvae | Larvae behaviour | Benthic larvae [The free embryos laid more or less on the bottom of the tank, but from time to time darted horizontally. Then, they fell back to the bottom and rest passively for some time.] | Demersal |
| Chondrostoma toxostoma | Larvae | Reaction to light | The free-embryos developed early photophobia and tended to congregate | Photopositive |
| Chondrostoma toxostoma | Larvae | Temperature during larval development | 16-19 | 17.5 °C |
| Chondrostoma toxostoma | Larvae | Sibling intracohort cannibalism | No cannibalism or aggressive behaviour was observed | Absent |
| Chondrostoma toxostoma | Larvae | Onset of exogeneous feeding | 180 [10 days and 20 hour at 16-17] à vérifier | 16.5 °C * day |
| Chondrostoma toxostoma | Spawning conditions | Spawning water type | Small tributary streams, deep pools just dowstream of riffles | No category |
| Chondrostoma toxostoma | Spawning conditions | Spawning depth | Deep pools | No data |
| Chondrostoma toxostoma | Spawning conditions | Spawning substrate | Boulders | No category |
| Chondrostoma toxostoma | Spawning conditions | Spawning site preparation | No, eggs are deposited on boulders in deep pools | Susbtrate chooser |
| Chondrostoma toxostoma | Spawning conditions | Parental care | Nonguarding | No care |