Salt conc. (g/l) | Life Expectancy at birth (days) | Gross Reproductive rate (cysts / female) | Net reproductive rate (cysts / female) | Rate of pop. increase (r) |
---|---|---|---|---|
Female | ||||
0 | 49.5 ± 1. 9a | 990.8 ± 47.0a | 969.7 ± 37.4a | 0.515 ± 0.004a |
1 | 24.8 ± 0.8b | 412.3 ± 14.6b | 395.0 ± 20.9b | 0.542 ± 0.002b |
2 | 14.2 ± 0.2c | 63.5 ± 6.9c | 62.0 ± 8.1c | 0.480 ± 0.003c |
4 | 12.2 ± 0.3c,d | 84.0 ± 24.1c,d | 84.0 ± 24.1c | 0.490 ± 0.02c |
8 | 8.5 ± 0.1d | 13.0 ± 1.8d | 13.0 ± 1.8c | 0.318 ± 0.01c |
Male | ||||
0 | 53.8 ± 1.7a | |||
1 | 26.8 ± 1.4b | |||
2 | 18.5 ± 1.5c | |||
4 | 14.5 ± 0.2d | |||
8 | 8.3 ± 0.2e |