Thermal Pollution

An upward change in water temperature, often exceeding the tolerance limits for some forms of aquatic life. If no springs or feeder streams are available to offer temporary refuge from these events, a fish kill may ensue. Thermal pollution is the hallmark of tailwater fisheries not managed for the life forms in the river, but rather only for drinking or irrigation purposes. Enlightened views on water release practices are gradually replacing such outdated thinking, and ecosystem management prevails.