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Dissolved Oxygen Activity
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Title: Dissolved Oxygen Activity
Url: http://www.shodor.org/refdesk/Resources/Activities/DissolvedOxygen/lesson.php
Creator: Steve Gordon
Contributor: none listed
Publisher: none listed
Description: One of the most important measures of the health of the stream is the level of dissolved oxygen (DO) in the water. Oxygen (O2) dissolves in water through the mixing of the water surface with the atmosphere. The oxygen is used by fish and other animals in the water to "breath" through their gills or other respiratory systems and by plants. If the levels fall too low, many species of fish, macroinvertebrates, and plants cannot survive. At very low levels of oxygen, the stream becomes "septic" and smells rotten because low oxygen sulfur bacteria begin to dominate.
Format: none listed
Language: English
Subject: Earth Sciences
Keywords: none listed
Audience: none listed
Education Level: Educator, Grades 10-12, Grades 7-9, Student, Undergraduate
Resource Type: Text
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