Very Tolerant Bugs

Bug Group||Tools||B-IBI|| How We Do Our Job||Scores||Very Intolerant||Intolerant||Tolerant||Very Tolerant||Quiz||About Us||Glossary||Bibliogaphy||Our Story

These are the worst bugs we could find in a stream, river or creek because they are very tolerant to pollution, which means they can tolerate living in polluted water and still live. So, if we find these here that means the water could be very polluted.

Pouch Snail	Tubifex Worm