Table 3 Snail-concentrated elevation intervals in the Poyang Lake region of China
Elevation grading (m) | South Poyang Lake | North Poyang Lake | ||
|---|---|---|---|---|
Percent of frames with living snail (%) | Mean density of living snail (No./0.1m2) | Percent of frames with living snail (%) | Mean density of living snail (No./0.1m2) | |
< 9.0 | – | – | 0 | 0 |
9.0–9.9 | 0 | 0 | 3.40 | 0.079 |
10.0–10.9 | 0 | 0 | 8.72 | 0.185 |
11.0–11.9 | 3.79 | 0.056 | 6.87 | 0.116 |
12.0–12.9 | 12.06 | 0.205 | 10.31 | 0.229 |
13.0–13.9 | 7.49 | 0.125 | 11.55 | 0.263 |
14.0–14.9 | 5.62 | 0.085 | 5.09 | 0.098 |
15.0–15.9 | 18.18 | 0.387 | 14.29 | 0.178 |
> 16.0 | 0 | 0 | 0 | 0 |