The ecology of flowing waters in relation to management.
D000818:Animals; D002980:Climate; D004463:Ecology; D005399:Fishes / Q000254:growth & development; D007313:Insecta; D007448:Invertebrates; D009747:Nutritional Physiological Phenomena; D010101:Oxygen Consumption; D010944:Plants; D013696:Temperature; D014871:Water Microbiology; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply