When food enters the small intestine, bile travels through the common bile duct to reach the duodenum. Gallstones are hard deposits that form inside the gallbladder when there is too much bilirubin or cholesterol in the bile.
That said, there is a considerable consensus that all three major trout species (brook, brown and rainbow) begin to experience some level of stress at around 68Â°F (20Â°C), with that stress increasing rapidly as the temperature rises further.
because of this their level of activity changes as the water temperature changes if the water temperature fluctuates to much they will decrease their level of activity accordingly to conserve energy there seems to be a temperature range of about 20 to 25 degrees f in which most trout can maintain the status quomost studies have shown that trout will maintain a normal regimen in temperatures ranging from around 40 to 65 degrees give or take a few degrees on the high and or low sideshere seems to be a temperature range of about 20 to 25 degrees f in which most trout can maintain the status quo most studies have shown that trout will maintain a normal regimen in temperatures ranging from around 40 to 65 degrees give or take a few degrees on the high and or low sides