Koya et al, 1998


Koya, Y. and Itazu, T. and Inoue, M. (1998) Annual reproductive cycle based on histological changes in the ovary of the female mosquitofish, Gambusia affinis, in central Japan. Ichthyological Research [Ichthyol. Res.]., pp. 241-248

Associated characteristics

Species Development state Trait Primary Data Secondary Data
Gambusia affinis Female Onset of oogenesis April ['April']
Gambusia affinis Female Intensifying oogenesis activity May-June ['May', 'June']
Gambusia affinis Female Maximum GSI value 23-24.1 [From late June to early October] 23.55 percent
Gambusia affinis Female Resting period 1.0-1.1 [From January to April] 1.05 months
Gambusia affinis Spawning conditions Spawning temperature 17-21 19.0 °C
Gambusia affinis Spawning conditions Spawning release Viviparous No category