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采用围隔实验生态学方法研究了对虾综合养殖生态系有机碳的平衡,结果表明:(1)研究期间各实验围隔有机碳的总收入量为4847 46～6154 67g,平均为(5646 94±551 09)g.有机碳总收入量与浮游植物生产量、附生藻类生产量及颗粒饲料(含饵料鱼)等各组分碳收入量的比例平均为1∶0 73∶0 11∶0 16.(2)研究期间各实验围隔有机碳的总支出量为3310 28～3974 79g,平均为(3644 21±281 44)g.有机碳总支出量与浮游生物群落呼吸量、附生生物群落呼吸量、底栖群落呼吸量、养殖生物生产量、养殖生物呼吸量等各组分碳支出量的比例平均为1∶0 53∶0 19∶0 15∶0 04∶0 09.(3)各实验围隔有机碳积累量为1383 45～2707 31g,平均为(2002 73±546 76)g,占收入量的(35±7)%(26%～44%).不同养殖模式实验围隔依积累量大小顺序为:Y5(对虾-扇贝)、Y7(对虾-罗非鱼)、Y4(单养对虾)、T5(对虾-罗非鱼-缢蛏)、Y6(对虾-缢蛏).(4)围隔收入的有机碳对对虾的转化率为(1 77±0 62)%(0 76%～2 28%),转化率大小顺序为Y6,T5,Y4,Y5,Y7,收入的有机碳对全部养殖动物的转化率为(2 18±0 79)%(1 07%～3 12%),转化率大小顺序为T5,Y6,Y5,Y4,Y7.
The results showed that: (1) During the study period, the total amount of organic carbon in the permafrost enclosures was 4847 46 ~ 6154 67g, with an average of (5646 94 ± 551 09) g. The ratio of the total organic carbon income to the amount of phytoplankton production, epiphytic algal production, and carbon content of each component such as pelleted feed (including bait fish) is 1: 0 73:0 11:0 16 . (2) During the study period, the total amount of organic carbon in the enclosures was 3310 28-3974 79g, with an average of (3644 21 ± 281 44) g. The total amount of organic carbon and the amount of respiration of plankton communities, epiphytic biota Respiration rate, respiration rate of benthic community, biomass of farmed animals, respiration rate of farmed animals and other components were averagely 1:0 53:09:03:04:09 (3) The average organic carbon accumulation in the study area was 1383 45 ~ 2707 31g, with an average of (2002 73 ± 546 76) g, accounting for 35 ± 7% (26% ~ 44%) of the total income. Y5 (shrimp-scallop), Y7 (shrimp-tilapia), Y4 (shrimp), T5 (shrimp-tilapia-shrew) and Y6 Wai The conversion rate of organic carbon to shrimp was (1 77 ± 0 62)% (76% -2 28%) and the order of conversion was Y6, T5, Y4, Y5 and Y7. The conversion rate of animals was (2 18 ± 0 79)% (1 07% ~ 3 12%), and the order of conversion rate was T5, Y6, Y5, Y4 and Y7.