Table 2 The dominance (IRI) and seasonal variations of the dominant macrozoobenthos in black water aggregation areas in Lake Taihu.
Dominated species | Summer | Autumn | Winter | Spring | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
West basin | Zhushan Bay | Meiliang Bay | Gonghu Bay | West basin | Zhushan Bay | Meiliang Bay | Gonghu Bay | West basin | Zhushan Bay | Meiliang Bay | Gonghu Bay | West basin | Zhushan Bay | Meiliang Bay | Gonghu Bay | |
Tubifex tubife | 1181.71 | — | — | 1439.55 | 1490.25 | 3376.72 | 1974.04 | 3988.61 | 1643.44 | — | 1585.15 | 2055.33 | 1547.82 | — | — | — |
Limnodrilus hoffmeistteri | 4086.71 | 7594.06 | 4854.93 | — | 5732.27 | 4324.84 | 6253.40 | 3180.14 | 6037.29 | 5280.58 | 3559.95 | 1575.34 | 5914.20 | 3200.50 | 4764.06 | 3605.86 |
Limnodrilus grandisetosus | — | — | — | — | — | — | — | — | — | 1158.80 | — | — | — | — | — | — |
Bellamya aeruginosa | — | 3035.95 | — | — | — | 5072.93 | 1349.81 | — | — | 1250.11 | — | — | — | 1826.02 | 1613.17 | — |
Bellamya purificata | — | 1055.22 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Corbicula fluminea | 4065.52 | — | 1688.58 | — | 4629.35 | — | — | — | 6922.17 | 2123.34 | 1185.43 | — | 6992.22 | 1247.60 | — | — |
Tanypus punctipennis | — | — | — | 1192.71 | — | — | 1805.22 | — | — | — | 1272.93 | 1046.88 | — | 2759.40 | 2412.97 | 2212.62 |
Propsilocerus akamusi | — | — | — | — | — | — | — | — | — | — | 2677.58 | 3262.89 | — | — | — | — |
