Pond
Dissolved Oxygen
Acceptable levels:
125% > - too high for many species to survive
124% - excellent for most fish
79% - satisfactory for most fish
59% < - most species die
Also:
Aquaculture Environment, Oxygen, Dissolved
See also:
http://www.waterwatch.org.au/library/module-4/oxygen.html
http://sensors-transducers.globalspec.com/LearnMore/Sensors_Transducers_Detectors/Analytical_Sensors/Dissolved_Oxygen_Sensors
http://www.campusprogram.com/reference/en/wikipedia/w/wi/winkler_test_for_dissolved_oxygen.html
http://www.sciteched.org/curriculum/Samples/do_act.htm
Interested: