Trout have fins entirely without spines, and all of them have a small adipose fin along the back, near the tail. It is virtually impossible to define a particular colour pattern as belonging to a specific breed however, in general, wild fish are claimed to have more vivid colours and patterns. Trout in, or newly returned from the sea, can look very silvery, while the same fish living in a small stream or in an alpine lake could have pronounced markings and more vivid coloration it is also possible that in some species this signifies that they are ready to mate. Mostly, these colours and patterns form as camouflage, based on the surroundings, and will change as the fish moves to different habitats. Trout that live in different environments can have dramatically different colorations and patterns. All fish are reared at the Albury Estate Fish Farm. The Albury Estate stocks Rainbow Trout with Brown Trout at certain times of the year. Most trout such as Lake trout live in freshwater lakes and/or rivers exclusively, while there are others such as the Rainbow trout which spend two or three years at sea before returning to freshwater to spawn, a habit more typical of salmon. The word trout is also used as part of the name of some non-salmonid fish such as Cynoscion nebulosus, the spotted seatrout or speckled trout. Trout is the name for a number of species of freshwater fish belonging to the genera Oncorhynchus, Salmo and Salvelinus, all of the subfamily Salmoninae of the family Salmonidae.

Interesting facts about brook trout