Parameters | Snail species | T1 | T2 | p-value |
---|---|---|---|---|
Number of G1 individuals | B. pfeifferi | 35 | 34 | |
B. camerunensis | 30 | 30 | ||
Mean number of egg capsules (sd) | B. pfeifferi | 19.0 (4.1) | 19.3 (3.7) | 0.732 |
B. camerunensis | 18.9 (12.6) | 27.9 (11.9) | 0.010* | |
Mean number of eggs (sd) | B. pfeifferi | 363.2 (66.0) | 366.6 (72.9) | 0.840 |
B. camerunensis | 121.2 (95.8) | 315.2 (183.8) | <0.0001* | |
Number of incubated capsules | B. pfeifferi | 32 | 30 | |
B. camerunensis | 36 | 42 | ||
Average incubation time (sd) | B. pfeifferi | 9.6 (0.5) | 9.4 (0.8) | 0.202 |
B. camerunensis | 10.0 (1.7) | 8.2 (0.9) | <0.0001* | |
Hatching rate (95 % CI) | B. pfeifferi | 87.2 (84.2–89.7) | 92.3 (89.5–94.4) | 0.5323 |
B. camerunensis | 68.8 (63.6–73.5) | 92.3 (89.9–94.3) | <0.0049* | |
Number of G2 offspring | B. pfeifferi | 30 | 30 | |
B. camerunensis | 36 | 36 | ||
G2 survival rate at D8 (95 % CI) | B. pfeifferi | 72.6 (68.4–76.5) | 67.4 (62.8–71.6) | 0.0848 |
B. camerunensis | 94.3 (90.5–96.6) | 82.5 (78.8–85.7) | 0.0001* | |
G2 survival rate at D16 (95 % CI) | B. pfeifferi | 64.2 (59.7–68.5) | 50.1 (45.5–54.8) | 0.0001* |
B. camerunensis | 85.5 (80.4–89.5) | 79.7 (75.9–83.2) | 0.648 | |
G2 survival rate at D30 (95 % CI) | B. pfeifferi | 54.1 (49.5–58.6) | 39.2 (34.8–43.9) | 0.0001* |
B. camerunensis | 82.5 (77.0–86.9) | 76.7 (72.7–80.3) | 0.0838 |