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Table 1 Reproduction of juvenile snails with different densities of breeding for 1 year in the field

From: The South-to-North Water Diversion Project: effect of the water diversion pattern on transmission of Oncomelania hupensis, the intermediate host of Schistosoma japonicum in China

Juvenile snails (male: female ratio of 1)
with different densities (snails/0.16 m2)
Group I Group II
  No. snails
collected
No. living
snails
Reproduction
(%)
No. snails
collected
No. living
snails
Reproduction
(%)
2 2 1 -50 1 1 -50
4 3 3 -25 3 1 -75
8 30 21 162.5 35 27 237.5
16 49 43 168.8 51 47 193.8
32 58 51 59.4 63 56 75
64 118 108 68.8 121 110 71.9
128 229 197 53.9 243 201 57