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.
Scientific Name: Oncorhynchus mykiss; synonyms Salmo mykiss; Salmo gairdneri. Common Name(s): Rainbow Trout; Many names for subspecies (e.g. Steelhead, Golden) Identification: The rainbow trout (Oncorhynchus mykiss) is easily distinguished from similar trout. Rainbow trout in Arkansas typically range from 9 â 12 inches in length and weight 0.3 â 0.5 lbs. However, individuals weighing 2 â 4 lbs are common with the current state record at 19 lbs 1 oz (White River). The rainbow trout has a moderately large mouth extending to the rear of the eye. The tail fin is slightly forked.