A correlation between seasonally changing photoperiod, whole body lipid, and condition factor in juvenile spring Chinook salmon (Oncorhynchus tshawytscha)
Fig 5
Comparison of seasonal changes in whole body lipid for juvenile Yakima River spring Chinook salmon either rearing naturally in the Yakima River (Beckman et al. 2000, squares), rearing in the Cle Elum hatchery under standard Ks, with seasonally changing temperature and feeding rates (Larsen et al. 2006, triangles) or this study (circles).
There is a common increase in lipid from the summer solstice through the fall, however the magnitude of change in lipid levels vary according to feeding rates and metabolic demand characteristics of the different environments.