Alp, A. and Kara, C. and Büyükçapar, H.M. (2004) Reproductive biology in a native European catfish, Silurus glanis L., 1758, population in Menzelet reservoir. Tur. J. Vet. Ani. sci., pp. 613-622
| Species | Development state | Trait | Primary Data | Secondary Data |
| Ictalurus punctatus | Male | Male sexual dimorphism | Males were 18 to 43% heavier than females | Absent |
| Silurus glanis | Egg | Oocyte diameter | Mean size of oocytes range from 1.842 [Range 1.00-2.67] for female of 4 years old to 2.323 [Range 1.45-3.73, for females of age 10] | 1.83 mm |
| Silurus glanis | Egg | Egg adhesiveness | The eggs are laid in a large sticky pile | Adhesive |
| Silurus glanis | Female | Age at sexual maturity | The smallest mature female was 4 years old [3-4 for females in other sutides] | 3.5 year |
| Silurus glanis | Female | Length at sexual maturity | The smallest mature female was 86.0 cm [85.0-90.0 cm], also [58-60 for both sex in other studies] | 87.5 cm |
| Silurus glanis | Female | Weight at sexual maturity | The smallest mature female was 4.434 [1-2, 1.43 for both sex in other studies] | 1.5 kg |
| Silurus glanis | Female | Relative fecundity | 8.443 +/ 1.114 [12,7 in other studies] | 8.44 thousand eggs/kg |
| Silurus glanis | Female | Absolute fecundity | Mean fecundity 87,108 +/ 20,992 [Range 9,033 to 340,461 for females ranging from 86.0 to 151.0 cm] | 87.0 thousand eggs |
| Silurus glanis | Female | Maximum GSI value | 4.5% [May] | 4.5 percent |
| Silurus glanis | Female | Oogenesis duration | From December to May | 7.0 months |
| Silurus glanis | Female | Resting period | September-October: >0.05% | 3.0 months |
| Silurus glanis | Male | Age at sexual maturity | Smallest males belonged at 3 years old [2-3 in other studies] | 2.5 years |
| Silurus glanis | Male | Length at sexual maturity | Smallest males belonged to the 80-85 cm length class [the smallest male was 83.0 cm], also [58-60 both sex, other studies] | 82.5 cm |
| Silurus glanis | Male | Weight at sexual maturity | The smallest male was 3.744 [12, 1.43 for both sex in other studies] | 3.74 kg |
| Silurus glanis | Male | Male sexual dimorphism | Males grew 2 to 15% faster than females | Absent |
| Silurus glanis | Male | Onset of spermatogenesis | December | ['December'] |
| Silurus glanis | Male | Main spermatogenesis activity | March-April and May | ['March', 'April', 'May'] |
| Silurus glanis | Male | Maximum GSI value | 0.2 [May] | 0.2 percent |
| Silurus glanis | Male | Resting period | Low between August and November | 5.0 months |
| Silurus glanis | Spawning conditions | Spawning season | June to August | ['June', 'July', 'August'] |
| Silurus glanis | Spawning conditions | Spawning site preparation | The male opens out a depression in the bottom | No category |
| Silurus glanis | Spawning conditions | Parental care | The eggs are guarded by the males until they hatch | Male parental care |