Marconato, A. and Rasotto, M.B. (1989) The biology of a population, of spined loach, Cobitis taenia L. Boll. Zool., pp. 73-80
| Species | Development state | Trait | Primary Data | Secondary Data |
| Barbatula barbatula | Spawning conditions | Spawning release | Multiple spawning have been suggested | Multiple |
| Cobitis taenia | Egg | Oocyte diameter | Large ripe yellowish eggs 1.3-1.6 mm | 1.45 mm |
| Cobitis taenia | Female | Age at sexual maturity | Most males and females become sexually mature in their second spring after hatching | 2.0 year |
| Cobitis taenia | Female | Female sexual dimorphism | The sexual dimorphism in size between males and females was evident | Absent |
| Cobitis taenia | Female | Absolute fecundity | Estimation of fecundity gives a value of 1012 eggs for a 90 mm female, lower than 1600 eggs per females already reported | 1012.0 thousand eggs |
| Cobitis taenia | Female | Oocyte development | In mature females, the ovary is asynchronous, with oocytes in different stages of vitellogenesis | Asynchronous |
| Cobitis taenia | Female | Onset of oogenesis | Based on graph, could be in November-December | ['November', 'December'] |
| Cobitis taenia | Female | Intensifying oogenesis activity | Based on GSI graph, GSI varied from 12% in beginning of April to 22% in the end of April to 26% in the end of May | ['April', 'May'] |
| Cobitis taenia | Female | Maximum GSI value | Mean of 0.28, range 0.24-0.30 [Mid June but for GSR, which is the gonad weight/total weight minus gonad weight] | 0.27 percent |
| Cobitis taenia | Female | Resting period | Decrease between August and November | 5.0 months |
| Cobitis taenia | Male | Age at sexual maturity | Most males and females become sexually mature in their second spring after hatching | 2.0 years |
| Cobitis taenia | Male | Onset of spermatogenesis | Autumn | ['October', 'November', 'December'] |
| Cobitis taenia | Male | Main spermatogenesis activity | April-May | ['April', 'May'] |
| Cobitis taenia | Male | Maximum GSI value | About 5 but for GSR which is the gonad weight/total weight minus gonad weight | 5.0 percent |
| Cobitis taenia | Male | Spermatogenesis duration | Spermatogenesis occurs in males not onyl from May to July, but also in autumn. During winter, the testes were still filled with spermatozoa, with spermatogonia located in the wall of the lobules. Therefore the winter phase of quiscence is not folled by the depletion of the testes which remain full of sperm throughout the year | 10.0 months |
| Cobitis taenia | Male | Resting period | September | 2.0 months |
| Cobitis taenia | Spawning conditions | Spawning season | The peak of spawning occurred in early June when several running females were caught | ['June'] |
| Cobitis taenia | Spawning conditions | Spawning period duration | The breeding season if from May to July [Larger females matured and spawned earlier than smaller ones] | No data |
| Cobitis taenia | Spawning conditions | Mating system | Despite the occurrence of some hermphrodite specimens, data do not support functional protandrous hermaphroditism among males. The study of gonadogenesis and gonads showed that in the population under study only accidental and non functional hermaphroditism occurs | No category |
| Cobitis taenia | Spawning conditions | Spawning release | If this species is a fractional spawner the actual number of eggs produced by each female may be greater | Fractional |
| Cobitis paludica | Spawning conditions | Spawning release | Multiple spawning have been suggested also for C. paludicola | Multiple |