Flow

For a Hawaiian stream to support native aquatic life, there must be a reasonable flow rate. If the flow is too slow, the water can become too warm and the oxygen levels can become too low.

As Flow decreases:
Temperature increases;
Oxygen decreases
Water Quality decreases
Definitions

Flow Rate:

Flow rate is the volume of liquid (water) flowing past a given point in a specific time period, such as liters per second (l/s) or cubic feet per second (ft³/s).