The highest HSI value for each stage should be somewhere between 0.9 and 1.0. Each life stage responds differently to changes in water quantity and quality factors. There is no single set of values which is perfectly suited for all life stages. The depth range goes from slightly above 0 to about 4 ft. 3. Most life stages are best suited by a gravel bottom.
All temperature ranges have a lower limit of the freezing point.
Check out the on-line dissertation on InterWET for more information behind the theory and techniques used to make this calculator. Created by Shane Parson, Copyright 1999.