Table 2 Summary of snail species and groups used in the experimental study
Shell size at day of exposure | ||||||
|---|---|---|---|---|---|---|
1-2 mm | 1-2 mm | ≥ 2–4 mm | ≥ 2–4 mm | ≥ 4–6 mm | ≥ 4–6 mm | |
Snail species | Lymnaea fuscus | |||||
Number of snails at exposure | 100 | 50 | 100 | 50 | 100 | 50 |
Number of miracidia | 2 | – | 2 | – | 2 | – |
Survival rate at day 30 post-exposure (%) | 69 | 90 | 79 | 86 | 100 | 100 |
Mean shell height (±S.D.) of CS + NCS snails at their death (mm) | 5.9 ± 1.6 | 11.2 ± 0.9 | 13.4 ± 0.9 | 13.8 ± 0.8 | 15.3 ± 1.1 | 15.1 ± 0.8 |
Snail species | Lymnaea palustris | |||||
Number of snails at exposure | 100 | 50 | 100 | 50 | 100 | 50 |
Number of miracidia | 2 | – | 2 | – | 2 | – |
Survival rate at day 30 post-exposure (%) | 78 | 82 | 91 | 90 | 100 | 100 |
Mean shell height (± S.D.) of CS + NCS snails at their death (mm) | 6.8 ± 2.2 | 10.6 ± 0.8 | 12.9 ± 1.6 | 13.3 ± 1.3 | 14.1 ± 1.3 | 14.5 ± 1.6 |
Snail species | Galba truncatula | |||||
Number of snails at exposure | 100 | 50 | 100 | 50 | – | – |
Number of miracidia | 2 | – | 2 | – | – | – |
Survival rate at day 30 post-exposure (%) | 57 | 66 | 74 | 88 | – | – |
Mean shell height (± S.D.) of CS + NCS snails at their death (mm) | 4.6 ± 1.0 | 4.5 ± 1.1 | 6.2 ± 1.2 | 5.8 ± 1.0 | – | – |