Fig. 6.

Parameterization of the PVA model for inbred and outbred zebrafish populations. Simulations were run for two age classes (age 0+ juveniles and age 1+ adults) and, subsequently, for three age classes (0+, 1+, and 2+). There was assumed to be no difference in male and female survivorship: age 0+ = 4 ± 3% for inbreds and 9 ± 3% for outbreds; ≥age 1+ = 19 ± 3%. Sex ratio (e.g., 18% females) was varied according to experimental exposure results (Table 2). Annual fecundity (F) per adult female (≥age 1+) = 50 ± 20 eggs × 60 spawning events during the 120-d monsoon season. Ceiling carrying capacity (K) was set at 5,000 ± 1,000 individuals. Other parameters, including simulation of emergent inbreeding depression, are provided in SI Appendix, Table S7.