Understanding Bacterial Monitoring in Water

<p>Activated sludge</p> Signup and view all the answers

<p>Fecal contamination may have occurred</p> Signup and view all the answers

<p>The potential sources of bacterial contamination mentioned in the text include fecal waste, tap water, activated sludge, sediments, and soils.</p> Signup and view all the answers

<p>The reasons for monitoring bacteria in water include the succession of microorganisms during the self-purification process, the association of pathogenic microorganisms with fecal waste and the potential to cause diseases, and the difficulty in directly monitoring various pathogens, leading to the use of indicator species to suggest fecal contamination.</p> Signup and view all the answers

<p>The methods mentioned for examining microbial populations include microscopy, activity measurements, culture methods such as the Great Plate Count Anomaly and MPN, immunological methods, molecular detection methods like PCR and Real Time PCR quantification, and whole cell analysis using techniques like Fluorescent in situ Hybridisation (FISH) and flow cytometry.</p> Signup and view all the answers

<p>The Great Plate Count Anomaly is related to the discrepancy between the estimated number of bacteria based on direct microscopic counts and the number of viable bacteria obtained by cultivation on agar plates.</p> Signup and view all the answers

<p>The habitat types mentioned in the text are seawater, freshwater, mesotrophic lake, tap water, activated sludge, sediments, and soils. The respective cultivable percentages range from 0.001-0.1% in seawater to 0.25-15% in activated sludge.</p> Signup and view all the answers