Marconato, A. and Bisazza, A. (1988) Mate choice, egg cannibalism and reproductive success in the river bullhead, Cottus gobio L. J. Fish Biol., pp. 905-916
| Species | Development state | Trait | Primary Data | Secondary Data |
| Cottus gobio | Egg | Oocyte diameter | > 1.8 [The oocytes of the their class, i.e. ripe oocytes ready to be spawned] | 1.8 mm |
| Cottus gobio | Larvae | Initial larval size | ED= 0.4 L -0.75 (ed: egg diameter and L: length of the larvae) | 0.4 mm |
| Cottus gobio | Larvae | Temperature during larval development | 10-12 | 11.0 °C |
| Cottus gobio | Larvae | Sibling intracohort cannibalism | The occurrence of egg cannibalism in guarding male varied throughout the season and reached a maximum of 80% in the sample of 12 March | Present |
| Cottus gobio | Larvae | Full yolk-sac resorption | 150 [10-15 at 10-12°C] | 12.5 °C * day |
| Cottus gobio | Female | Age at sexual maturity | 2 [Both sex] | 2.0 year |
| Cottus gobio | Female | Length at sexual maturity | Most at 4-6 | 5.0 cm |
| Cottus gobio | Female | Absolute fecundity | F= -183 + 6.4 L | 183.0 thousand eggs |
| Cottus gobio | Female | Oocyte development | Asynchrony in oocyte development | Asynchronous |
| Cottus gobio | Male | Age at sexual maturity | 2-3 [Males] | 2.5 years |
| Cottus gobio | Male | Length at sexual maturity | Most at 5-7 | 6.0 cm |
| Cottus gobio | Spawning conditions | Spawning season | Late February to Late April | ['February', 'April'] |
| Cottus gobio | Spawning conditions | Spawning period duration | 8-9 | 8.5 weeks |
| Cottus gobio | Spawning conditions | Spawning temperature | 3-6 | 4.5 °C |
| Cottus gobio | Spawning conditions | Spawning water type | Creek, stream | No category |
| Cottus gobio | Spawning conditions | Spawning depth | From 5 cm in riffles, to about 60 cm in pools, mostly less than 30 cm | 5.0 m |
| Cottus gobio | Spawning conditions | Spawning substrate | A mixture of sand and firly clean ,fine to coarse gravel, with occasional large rocks | Lithophils |
| Cottus gobio | Spawning conditions | Spawning site preparation | During the breeding season, the male excavates a cavity under a stone, the ripe female enters the nest and lay an egg mass on its ceiling | No category |
| Cottus gobio | Spawning conditions | Mating system | Males achieve multiple spawning in a relatively short period | No category |
| Cottus gobio | Spawning conditions | Spawning release | Multiple spawning during the same breeding season | Multiple |
| Cottus gobio | Spawning conditions | Parental care | The male fertilizes the eggs and guards them for about 4 weeks, during this time he fans the eggs almost constantly with his pectoral fins | No category |