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Table 2 Summary of snail species and groups used in the experimental study

From: Lymnaea palustris and Lymnaea fuscus are potential but uncommon intermediate hosts of Fasciola hepatica in Sweden

  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
  1. Abbreviations.
  2. CS cercariae shedding snails (spontaneous shedding of cercariae during experiment).
  3. NCS non cercariae shedding snails (snails that did not produce cercariae spontaneously but contained F. hepatica larvae).