Water Quality For Freshwater Organisms
http://www.mathinscience.info/teach/612_science/biolife_envisci/freshwater/fresh_water.htm

Robert Brosa, The Educator's Reference Desk


This website features a field activity that demonstrates the effect of water temperature on the solubility of dissolved oxygen and how it relates to the gill beat rate of fish. The activity uses the Winkler method to measure dissolved oxygen.

This resource is referenced here:
Subject: Biology:Ecology:Habitats:Water Column, Biology:Biogeochemistry, Geoscience:Hydrology:Surface Water:Water Quality/Chemistry , Biology:Ecology:Metabolism, Biology
Resource Type: Activities:Field Activity:Field laboratories, Activities:Lab Activity
Special Interest: Field-Based Teaching and Learning
Grade Level: Middle (6-8), College Lower (13-14), High School (9-12)
Theme: Teach the Earth:Enhancing your Teaching:Teaching in the Field, Teach the Earth:Course Topics:Biogeoscience, Teach the Earth:Teaching Topics:Water, Teach the Earth:Course Topics:Ecology, Hydrology/Hydrogeology
Topics: Biosphere:Ecology:Habitats:Freshwater, Hydrosphere/Cryosphere:Surface Water:Water Quality/Chemistry, Biosphere:Ecology:Habitats:Water Column, Biosphere:Biogeochemistry, EcologyKeyword: DO