EVERYDAY SCIENCE

Detailed explanation-1: -A water pollution indicator species is a worm called Tubifex tubifex. This worm is the opposite of most indicator species in that it shows bad pollution in a habitat by thriving there. The Tubifex worm lives in stream and lake mud, but it’s actually tolerant of poor living conditions caused by pollution.

Detailed explanation-2: -This aquatic angleworm is right at home in mucky water. Sometimes called a sludge worm, it can even live in highly polluted waters.

Detailed explanation-3: -Tubificid worms live in a variety of aquatic habitats including sewer systems. They are usually associated with quiet waters containing plenty of silt and decaying organic materials. Many can tolerate low dissolved oxygen levels and high levels of organic pollutants.

Detailed explanation-4: -Tubifex tubifex, also called the sludge worm, “Boogie Worm", or sewage worm, is a species of tubificid segmented worm which inhabits the sediments of lakes and rivers on several continents.