刺参与红鳍东方鲀的生态混养效果

Growth of sea cucumbers Apostichopus japonicus cultivated with tiger puffer Takifugu rubripes in an integrated multi-trophic aquaculture experiment

为了丰富海参池塘养殖的混养种类,实验对刺参和红鳍东方鲀的生态混养效果进行了研究。结果显示,经过100 d的混养实验,红鳍东方鲀平均日增重率为1.07 g/d,特定生长率为4.06%/d,混养组与单养组红鳍东方鲀没有显著差异;但混养条件下刺参的生长状况显著优于单养条件下刺参的生长状况。与红鳍东方鲀混养组刺参平均日增重率为(0.11±0.04)g/d,特定生长率为(0.67±0.20)%/d。单养组刺参平均日增重率为(0.04±0.02)g/d,特定生长率为(0.35±0.19)%/d。研究表明,刺参池塘混养红鳍东方鲀模式下,红鳍东方鲀在正常快速生长的同时,可以有效促进刺参的生长,研究结果可以为刺参池塘的生态复合养殖提供参考依据。

In a 100 days field trial we examined the growth of sea cucumbers Apostichopus japonicus in bottom culture underneath net pens of tiger puffer Takifugu rubripes at an experimental integrated multi-trophic aquaculture（IMTA） site.We tested the effects of multi-culture on growth in two experimental species.We also compared growth of experimental animals cultured directly with control single species.There was no significant difference in fish growth between polyculture and control group,the average weight of daily weight gain（Md-wg）of T.rubripes was 1.07 g/d and the specific growth rate（SGR） was 4.06%/d in polyculture group.The Md-wg of A.japonicus was（0.11±0.04） g/d and the SGR was（0.67±0.2）%/d in polyculture group.In control single group,the Md-wg of A.japonicus was（0.04±0.02） g/d and the SGR is（0.35±0.19）%/d.Sea cucumbers suspended directly below the tiger puffer net pens grew significantly faster than control individuals.This study demonstrated that A.japonicus is well suited to utilize the heavy fraction of waste from the tiger puffer while providing an additional valuable harvestable product.