Microbial indicators of water body include

Microbial indicators of water body include biodiversity indicators, microbial activity indicators, pollution and environmental stress indicators.

1, biodiversity index

Biodiversity index can describe the species, quantity and diversity of microorganisms in water. These indicators include species richness, species diversity index, dominance index and other parameters. By evaluating the biodiversity of microbial communities, we can understand the stability and complexity of aquatic ecosystems.

2. Microbial total activity.

Microbial total activity reflects the metabolic status and functional activity of microorganisms in water. These indicators include microbial respiration, oxygen consumption rate and enzyme activity. By measuring these indicators, we can evaluate the ability of microorganisms to degrade and decompose organic matter, and then judge the existence and degree of organic pollutants in water.

3. Pollution and environmental pressure indicators.

These indicators are used to evaluate the response of microorganisms in water to environmental pollution and stress. For example, the antibiotic resistance of microorganisms, the degradation ability of toxic substances, and the detection of stress indicator substances. These indicators can reflect the degree of water pollution and the impact of environmental changes on microbial communities.

What is water microbiology?

1, microbial community structure.

Microbial community structure refers to the species composition and abundance distribution of microorganisms in water. By analyzing microbial DNA or RNA in water samples, molecular biological analysis of microbial community structure can be carried out, such as 16S rRNA and its sequence analysis.

2. Microbial ecological function.

Microorganisms play an important role in aquatic ecosystem, such as degradation of organic matter, nutrient cycle and ecosystem stability. Microbial ecological function refers to the ecological process and function that microorganisms participate in and play.

3. Microbial biomarkers.

Microbial biomarkers refer to biological molecules or environmental DNA specifically indicated by microorganisms in water. Microbial biomarkers are usually used to indicate specific conditions of water bodies or certain environmental changes.