Table 1 Total number of snails collected during monthly sampling in three irrigation canals etc
Species | Site 1 | Site 2 | Site 3 | Â | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â | 2004 | 2005 | Total | 2004 | 2005 | Total | 2004 | 2005 | Total | All sites |
Biomphalaria pfeifferi | 401 (39.3) | 2 (0.3) | 403 (22.5) | 2029 (62.5) | 390 (44.5) | 2419 (58.7) | 1625 (57.9) | 653 (36.9) | 2278 (49.8) | 5100 (48.6) |
Bulinus truncatus | 146 (14.3) | 423 (54.9) | 569 (31.8) | 242 (7.5) | 10 (1.1) | 252 (6.1) | 309 (11.0) | 273 (15.4) | 582 (12.7) | 1403 (13.4) |
Bulinus forskalii | 4 (0.4) | 14 (1.8) | 18 (1.0) | 165 (5.1) | 333 (38.0) | 498 (12.1) | 6 (0.2) | 2 (0.1) | 8 (0.2) | 524 (5.0) |
Lymnea natalensis | 161 (15.8) | 93 (12.1) | 254 (14.2) | 67 (2.1) | 2 (0.2) | 69 (1.7) | 0 (0.0) | 6 (0.3) | 6 (0.1) | 329 (3.1) |
Physa acuta | 58 (5.7) | 116 (15.0) | 174 (9.7) | 432 (13.3) | 135 (15.4) | 567 (13.8) | 0 (0.0) | 0 (0.0) | 0 (0.0) | 741 (7.1) |
Melanoides tuberculata | 146 (14.3) | 39 (5.1) | 185 (10.3) | 306 (9.4) | 6 (0.7) | 312 (7.6) | 867 (30.9) | 836 (47.2) | 1703 (37.2) | 2200 (21.0) |
Cleopatra bulimoides | 105 (10.3) | 84 (10.9) | 189 (10.5) | 5 (0.2) | 1 (0.1) | 6 (0.1) | 1 (0.0) | 0 (0.0) | 1 (0.0) | 196 (1.9) |
Total | 1021 | 771 | 1792 | 3246 | 877 | 4123 | 2808 | 1770 | 4578 | 10493 |