对 5个对虾养殖围隔生态系细菌生物量 (以C计 ,下同 )的研究结果表明 ,浮游细菌总生物量波动在 0 .0 9～ 0 .83mg/dm3 之间 ,平均 0 .37± 0 .2 1mg/dm3 ,占水层颗粒有机碳含量的 1 1 .94% ;附着细菌生物量在 ( 0 .1 4～ 3.6 9)×1 0 -2 mg/dm3 )之间 ,平均 ( 0 .77± 0 .5 8)× 1 0 -2 mg/dm3 ,占浮游细菌总生物量的2 .0 8%± 1 .95 %。随着养殖时间的推移 ,浮游细菌总生物量、附着细菌生物量均有所上升。底泥细菌生物量为 ( 44～ 1 32 )× ( 1 0 -6m/m) ,平均 ( 86± 2 3)× ( 1 0 -6m/m) ,占底泥有机碳含量的 1 .5 5 %。 The results of the bacterial biomass (in terms of C, the same below) of the five isolated shrimp culture enclosures showed that the total biomass of planktonic fluctuated between 0. 09 and 0. 83 mg / dm 3 with an average of 0. 37 ± 0 .2 1mg / dm3, accounting for 11.9% of the organic carbon content in the water layer and the mean value of the biomass of attached bacteria (0 .14 ~ 3.69 × 10-2 mg / dm3) .77 ± 0. 58) × 10 -2 mg / dm 3, accounting for 0.08% ± 1.95% of the total biomass of planktonic bacteria. With the passage of farming time, the total biomass of floating bacteria, bacterial biomass attached increased. The bacterial biomass of sediment was (44-132) × (10-6m / m) with an average of (86 ± 23) × (10-6m / m), accounting for 1.55 %.