The optimum value of dissolved oxygen for bacterium growth is 25% of air saturation.
溶氧水平为饱和度的25%，菌体生长最佳。
Significant correlations between dissolved oxygen content and degree of saturation and temperature, and also salinity were respectively found in the upwelling area.
溶解氧含量及其饱和度与温度呈正相关关系，与盐度呈负相关关系。
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