Treatment | # of newly recruited manila clamsa 1000 cm−3 of surface sediment | |||
Site 1 | Site 2 | Site 3 | Site 4 | |
Z. japonica | 23 | 61 | 27 | 375 |
No Z. japonica | 19 | 48 | 24 | 442 |
T test significance | 0.18 | 0.17 | 0.48 | 0.62 |