Trzebiatowski, R. and Naroznaski, A. (1973) A contribution to studies on the biology of vimb - Vimba vimba vimba (L.) from the Rega river. Acta Ichthyologica et Piscatoria [ACTA ICHTHYOL. PISC.], pp. 17-27
| Species | Development state | Trait | Primary Data | Secondary Data |
| Vimba vimba | Egg | Egg Buoyancy | Fertilized eggs drifting with the current fall upon the stony - gravel bottom | Demersal |
| Vimba vimba | Egg | Egg adhesiveness | Owing to their viscosity, become attached to the substrate | Adhesive |
| Vimba vimba | Female | Age at sexual maturity | The fourth age group almost exclusively comprised males, females being rarely encoutered. This indicates that males reach the maturity state in their fourth year of life, i.e., a year earlizer than females | 4.0 year |
| Vimba vimba | Female | Length at sexual maturity | 845 spawners with the body length (logitudo corporis) ranging from 24.5 to 40.5 cm and the total length (longitudo totalis) range of 29.5-48.5 cm | 39.0 cm |
| Vimba vimba | Female | Relative fecundity | The individual fecundity of the investigated Rega vimbs of the body lengths ranging within 25.0-38.0 cm amounts to 33800-139000 eggs (the mean value 77500), while its relative fecundity ranges from 81000 to 159000 eggs per 1 kg of fish (the mean value is 114600) [...] Other studies: With the body length range of 25.0-38.0 cm to vary from 40000 to 100000 eggs, the mean value being 66000 [...] Niemen vimbs within the range of 38000-130000 (the mean valu 73,600) | 31.5 thousand eggs/kg |
| Vimba vimba | Female | Absolute fecundity | The individual fecundity of the investigated Rega vimbs of the body lengths ranging within 25.0-38.0 cm amounts to 33800-139000 eggs (the mean value 77500), while its relative fecundity ranges from 81000 to 159000 eggs per 1 kg of fish (the mean value is 114600) [...] Other studies: With the body length range of 25.0-38.0 cm to vary from 40000 to 100000 eggs, the mean value being 66000 [...] Niemen vimbs within the range of 38000-130000 (the mean valu 73,600) | 31.5 thousand eggs |
| Vimba vimba | Male | Age at sexual maturity | The fourth age group almost exclusively comprised males, females being rarely encoutered. This indicates that males reach the maturity state in their fourth year of life, i.e., a year earlizer than females | 4.0 years |
| Vimba vimba | Male | Length at sexual maturity | 845 spawners with the body length (logitudo corporis) ranging from 24.5 to 40.5 cm and the total length (longitudo totalis) range of 29.5-48.5 cm | 39.0 cm |
| Vimba vimba | Spawning conditions | Spawning migration distance | While migrating from the sea to the Trzebiatow spawning ground, the vimbs cover the distance of about 20 km | 20.0 km |
| Vimba vimba | Spawning conditions | Spawning migration period | The vimb spring migration is held in spring (April-May), a month before the spawning itself | ['April', 'May', 'June'] |
| Vimba vimba | Spawning conditions | Spawning season | The vimb breeding in Rega usually takes place in late May or in the beginning of June | ['May', 'June'] |
| Vimba vimba | Spawning conditions | Spawning temperature | The spawning itself begins most often in the early morning, when the water temperature is 16-18°C | 17.0 °C |
| Vimba vimba | Spawning conditions | Spawning water type | For the spawning purposes the vimbs enter streams with clear water and fast current | Flowing or turbulent water |
| Vimba vimba | Spawning conditions | Spawning substrate | Deposit eggs on stony and gravel beds | Lithophils |
| Vimba vimba | Spawning conditions | Nycthemeral period of oviposition | The spawning itself begins most often in the early morning | Day |
| Vimba vimba | Spawning conditions | Mating system | The spawners gathered in the spawing site form groups consisting of several individuals, one female being always accompanied by a few males […] The spawning as a rule is very boisterous, accompanied by the water splash, vigorous swimming and movements of fishes | Promiscuity |