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*IntheVolunteerMonitoringHandbook,thesectiononSC AASEthicsforVolunteersdiscussescommunicationwithlandownersandwrittenpermissionmorespecifically.
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§ Higher the temperature, the less oxygen water can hold.
§ Life adapts to a narrow range of temperatures.
§ Changes of only a few degrees affect the life in a stream.
§ Temperature affects feeding, respiration, and aquatic
metabolism.
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Required for aquatic life respirationCan be altered by other physical and chemical parameters
Inversely related to temperature:As temperature increases, DO decreasesAs temperature decreases, DO increases
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•Mining operations – release of iron, copper, cadmium•Agriculture – adds nutrient ions •Sewage effluent – chloride, nitrates, and phosphate•Urban runoff – auto fluids, salts, and chemicals
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