Relative Condition Parameters for Fishes of Montana, USA

Body condition indices are commonly used in the management of fish populations and a surrogate to physiological attributes such as tissue-energy reserves. Relative factor (Kn) describes species relative geographic area. We developed models allow for calculation Kn Montana, USA by using weight–length data collected Montana Fish, Wildlife & Parks. generated log10weight–log10length relationships obtain specific parameter estimates equations (W′) 51 three subspecies. separate water type (e.g., lotic lentic) sex five due varying growth based on sexual dimorphism ecosystem types. offers advantage describing body provides index that do not have standard-weight weight (Wr), affords more information global database fishes.