Figure 2 from: Yanwirsal H, Bartsch P, Kirschbaum F (2017) Reproduction and development of the asian bronze featherback Notopterus notopterus (Pallas, 1769) (Osteoglossiformes, Notopteridae) in captivity. Zoosystematics and Evolution 93(2): 299-324. https://doi.org/10.3897/zse.93.13341

Figure 2 - Diagram of the course of the tested environmental factors: specific conductivity (C) and temperature (T) during 339 days in breeding group and tank I containing two females and one male of Notopterus notopterus. 20 spawnings of the female No. 1 were observed within a 5-month period. The breeding experiment was started after 3 months of acclimatization period. A swollen belly of the female was first observed after one month (arrow). * Asterisks refer to observed spawnings.