Skryabin, A.G. (1993) The biology of stone loach Barbatula barbatulus in the rivers Goloustnaya and Olkha, East Siberia. Journal of fish biology, pp. 361-374
Species | Development state | Trait | Primary Data | Secondary Data |
Barbatula barbatula | Egg | Oocyte diameter | 1 [Mean egg size] | 1.0 mm |
Barbatula barbatula | Female | Age at sexual maturity | 1-2 | 1.5 year |
Barbatula barbatula | Female | Length at sexual maturity | 7-7.3 | 7.15 cm |
Barbatula barbatula | Female | Weight at sexual maturity | 5.5-6 g | 5.75 kg |
Barbatula barbatula | Female | Relative fecundity | 0.424 ± 0.019 [River Goloustnaya] and 0.552 ± 0.015 [River Olkha] | 0.42 thousand eggs/kg |
Barbatula barbatula | Female | Absolute fecundity | 1.710-27.600 in females of 70-182 mm, averaging 11.96 ± 0.72 | 11.96 thousand eggs |
Barbatula barbatula | Female | Onset of oogenesis | After autumn the GSI was 1.6 ± 0.24%, lower than that in the spring | ['April', 'May', 'June', 'October', 'November', 'December'] |
Barbatula barbatula | Female | Intensifying oogenesis activity | The subsequent ripening of eggs and restoration of the GSI to April-May levels took 2.5-3 months | ['April', 'May'] |
Barbatula barbatula | Female | Maximum GSI value | 30-32 [Before spawning in May] | 31.0 percent |
Barbatula barbatula | Female | Resting period | 1 [Short] | 1.0 months |
Barbatula barbatula | Female | Resting period | 2.8± 0.43 [After spawning in May] | 2.8 months |
Barbatula barbatula | Male | Age at sexual maturity | 1 | 1.0 years |
Barbatula barbatula | Spawning conditions | Spawning season | Begin 10-12 May and end in the end of May | ['May'] |
Barbatula barbatula | Spawning conditions | Spawning period duration | 3-5 | 4.0 weeks |
Barbatula barbatula | Spawning conditions | Spawning temperature | 6°C in the morning, 9-10°C | 9.5 °C |
Barbatula barbatula | Spawning conditions | Nycthemeral period of oviposition | Night | Night |
Barbatula barbatula | Spawning conditions | Spawning release | Two periods of spawning : May and late-summer-early autumn | Multiple |
Barbatula barbatula | Spawning conditions | Spawning release | Interval of 2.5-3 months between first and second spawning event | No category |