April 26th- Algae

I have learned that the types of algae found in the water can indicate whether the water is polluted or of bad quality. If batrachospermum is found in water then that would be an indication of low organic materials/pollution in the water, but if  euglena or oscillitoria was found in the water, that water is probably polluted because those are the most tolerant of pollution.


Batrachospermum is found in shaded areas that contain soft cold water. This algae is an indicator of clean water because they are found in waters with low organic materials/pollution.


Euglena is the algae that is most tolerant of organic pollution. It is commonly found near sewage treatment plants due to the nitrogen.


Oscillatoria is the algae that is 2nd most tolerant of pollution. It is commonly found with euglena, and its filaments are said to oscillate.