Assessment of Seasonal Changes in Energy Density and Condition in Age-0 and Age-1 Muskellunge

摘要: Abstract The objectives of this study were to evaluate seasonal changes in the energy density age-0 and age-1 muskellunge Esox masquinongy compare various estimates condition. Three treatment groups evaluated determine temporal (J/g wet weight [ww]), water content, condition factor (K TL; K = W/L 3, where W L total length centimeters), relative (Wr .; ratio actual “standard” weight) through first year following hatching. Treatment (1) hatchery (muskellunge reared maintained ponds), (2) stocked (hatchery-reared lakes), (3) natural naturally produced lakes). Energy levels compared for fish 4 11 months old. Differences observed between all three groups. An average overwinter reduction 494 ± 192 J/g ww was over grou...