CAJ | 학술논문

本试验选取两口凡纳滨对虾高位池塘,通过连续地周期性采样和测定分析,研究了虾池异养细菌数量和弧菌数量变动规律及其与理化因子的相关关系。结果表明：两口试验虾池异养细菌数量变化范围在9.07×103~2.13×105 cfu/mL之间,平均为6.45×104 cfu/mL,呈现持续缓慢上升的趋势；两口试验虾池的弧菌数量变化趋势较为一致,变化范围为2.12×102~2.91×103 cfu/mL,养殖生产前期较低,中期高,后期随着换水量的加大而有所下降。相关性分析表明：虾池水体的异养细菌和弧菌数量均与透明度、 DO、 pH 呈负相关,与COD、 TSS含量呈正相关,其中弧菌数量与TSS含量呈显著正相关( P/0.05)。
본시험선취량구범납빈대하고위지당,통과련속지주기성채양화측정분석,연구료하지이양세균수량화호균수량변동규률급기여이화인자적상관관계。결과표명：량구시험하지이양세균수량변화범위재9.07×103~2.13×105 cfu/mL지간,평균위6.45×104 cfu/mL,정현지속완만상승적추세；량구시험하지적호균수량변화추세교위일치,변화범위위2.12×102~2.91×103 cfu/mL,양식생산전기교저,중기고,후기수착환수량적가대이유소하강。상관성분석표명：하지수체적이양세균화호균수량균여투명도、 DO、 pH 정부상관,여COD、 TSS함량정정상관,기중호균수량여TSS함량정현저정상관( P/0.05)。
Through continuous periodic sampling, determination and analysis, the varying regulation of the density of heterotrophic bacteria and vibrio in two intensive shrimp ( Litopennaus vannamei ) higher -place ponds were investigated. At the same time, the correlation between the physical and chemical factors and the density of heterotrophic bacteria and vibrio were analysed. The result showed that there was a continuously slow rise in the amount of heterotrophic bacteria, which altered in the range of 9. 07 × 103 ~ 2. 13 × 105 cfu/mL, averanging 6. 45 × 104 cfu/mL. The amount of vibrio in two ponds demonstrated a consistent trend, while the amount changed in the range of 2. 12 × 102 ~ 2. 91 × 103 cfu/mL, the level of vibrio amount in-creased from the early stage to the middle stage during the culture period, and then decreased in the later stage because of increasing water exchange. The correlation analysis indicated that the amount of heterotrophic bacteria and vibrio had a remarkably negative corrdation with transparency, the value of DO and pH. Positive correlation with the content of COD and TSS, and the same positive correlation with the amount of vibrio and content of TSS (P/0. 05) were also observed.