No detailed citation.
| Species | Development state | Trait | Primary Data | Secondary Data |
| Gobio gobio | Female | Age at sexual maturity | Nearly all fish were mature at the end of their third year, and approximatively 89% from females and 74% Stour females spawnerd after two years | 3.0 year |
| Gobio gobio | Female | Length at sexual maturity | Female were mature at 9.29 in Stour | 9.29 cm |
| Gobio gobio | Female | Absolute fecundity | Mean number of eggs per fish in successive age groups: 4812 [Age 2]; 9787 [Age 3], 15950 {Age 4]; 20823 [Age 5] in Frome; 5044 [Age 3], 4472 [Age 4], and 6781 [Age 5] in Thames; 500 [Age 2], 1500 [Age 3]; 3000 [Age 4] and 4-5000 [Age 6] in Nivelle; 1721 [Age 3]; 2053 [Age 4], 2886 [Age 5]; 3585 [Age 6]; 5610 [Age 7] in Dunajec | 2502.0 thousand eggs |
| Gobio gobio | Female | Onset of oogenesis | Increase in October | ['October'] |
| Gobio gobio | Female | Intensifying oogenesis activity | April | ['April'] |
| Gobio gobio | Female | Maximum GSI value | Huge variations between females, from 4 to 22, most between 12-18% in May | 15.0 percent |
| Gobio gobio | Male | Age at sexual maturity | Nearly all fish were mature at the end of their third year, and approximatively 64% of all males after two years | 3.0 years |
| Gobio gobio | Male | Length at sexual maturity | Mean size of mature males 10.46 cm in Frome and 9.66 cm in Stour | 10.46 cm |
| Gobio gobio | Male | Onset of spermatogenesis | Developed gradually through the winter | ['January', 'February', 'March'] |
| Gobio gobio | Male | Main spermatogenesis activity | Increased rapidly in size just prior to spawning in late May and early June | ['May', 'June'] |
| Gobio gobio | Male | Maximum GSI value | Huge variations between individuals: mostly 1-3% in May | 2.0 percent |
| Gobio gobio | Spawning conditions | Spawning release | Most females lay two or more batches of eggs each season | Multiple |
| Gobio gobio | Spawning conditions | Parity | Both sex had low survival rates ad their reproductive life spans were rarely more than three years | No category |