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本文主要介绍了1988年寿光县对虾养殖期间(5～9月)水环境和底泥环境中微生物种群的变化。据不同的地理位置,选择不同的养殖虾池;分别将水样和底泥环境中的弧菌、异养菌,及硫酸盐还原菌进行培养、分离计数。据对虾养殖期5个月的数据分析,不同的养殖虾池有不同的菌数波动范围。底泥与水环境中的菌数分布各有不同。异养菌在水样中的分布最高值为736×10~2个/ml,最低值为268.1×10~2个/ml;湿泥样中的最高值为372.7×10~4个/g最低值为125.9×10~4个/g。弧菌在水样中的最高值为12.33×10~2个/ml,最低值为0.5×10~4个/ml。据综合资料分析,对虾养殖池中的各种细菌分布,底泥高于水样,高温季节高于低温季节。底泥和水环境中有机物的含量与细菌数的分布成正比。底泥中硫酸盐还原菌的数量,是底泥环境中有机物污染程度的标志之一。根据硫酸盐还原菌的数量分布,可以有效地控制有机质(如对虾饵料)的投放量等。
This article mainly introduced the changes of microbial population in water environment and sediment environment of Shouguang County in 1988 during the period from May to September. According to different geographical locations, choose different shrimp farming ponds; Vibrio, heterotrophic bacteria, and sulfate-reducing bacteria in water samples and sediment environment were cultured separately and counted separately. According to shrimp farming period of 5 months of data analysis, different breeding shrimp ponds have different fluctuations in the number of bacteria range. Sediment and water environment in the distribution of bacteria vary. The highest value of heterotrophic bacteria in water samples was 736 × 10 ~ 2 / ml, the lowest value was 268.1 × 10 ~ 2 / ml, and the highest value in wet sludge samples was 372.7 × 10 ~ 4 / g The value is 125.9 × 10 4 / g. The highest value of Vibrio in water samples was 12.33 × 10 ~ 2 / ml, the lowest value was 0.5 × 10 ~ 4 / ml. According to the comprehensive data analysis, shrimp aquaculture ponds in the distribution of various bacteria, sediment higher than water samples, high-temperature season is higher than the low-temperature season. The amount of organic matter in the sediment and water environment is proportional to the distribution of bacteria. The amount of sulfate-reducing bacteria in the sediment is one of the hallmarks of the degree of organic contamination in the sediment environment. According to the number of sulfate-reducing bacteria distribution, can effectively control the organic matter (such as shrimp feed) and so on.