EFFECT OF TEMPERATURE AND PHOTOPERIOD ON THE SERUM PROTEINS OF THE RAINBOW TROUT, SALMO GAIRDNERI

Abstract
The serum of 1- and 2-year-old rainbow trout, acclimated at least 43 days to four conditions of temperature and daylength (16°–8L (hours daily photoperiod), 16°–16L, 8°–8L, and 8°–16L) was examined by paper electrophoresis. The albumin/globulin ratio was significantly greater in trout acclimated to 8 °C (pooled photoperiod) than in those acclimated to 16 °C (pooled photoperiod). Photoperiod had no significant effect on the serum protein pattern.