1+龄长江刀鲚与暗纹东方鲀池塘混养试验

Study on the polyculture of Takifugu obscurus and one-year-old Coilia nasus in ponds

摘要:

为探索适合刀鲚的池塘养殖新模式,分别在淡水和半咸水环境下开展了1⁺龄刀鲚与暗纹东方鲀的混养试验。试验结果表明,刀鲚与暗纹东方鲀在半咸水环境下混养,在产量、成活率、平均出塘规格等方面具有明显优势,当刀鲚放养密度为3 000尾/hm²时,单位面积产量最高可达116.70 kg/hm²,该塘刀鲚成活率为68.16%,平均出塘规格可达57.11 g,体质量在50 g以上的比例为61.66%。

Abstract:

To explore a new pond culture model suitable for Coilia nasus,a polyculture experiment of Takifugu obscures with one-year-old C. nasus was carried out in fresh and brackish water environments.The results showed that C. nasus and Takifugu obscures mix-cultured in brackish water had obvious advantages in yield,survival rate and the average body weight at harvest.When the stocking density of C. nasus was 3 000 tail/hm²,the yield per unit of C. nasus could reach 116.70 kg/hm²,the survival rate was 68.16%,the average body weight at harvest was 57.11 g,and the proportion of body weight above 50 g was 61.66%.