Common Names:
Habitat: most lakes and streams where water temperatures do not exceed 68 degrees Fahrenheit.
Description: Non-native. Introduced in 1898. Olive to bluish on the back, silvery sides, a pink band on the sides from head to tail. Many small black spots on back, sides, adipose and dorsal fin. Distinct radiating rows of black spots on tail fin. Generally, no spots on pectoral, pelvic and anal fins. Length: 8 to 32 inches. Weight: 6 ounces to over 10 pounds. Source: AZ Game & Fish
Comments: Behind the dorsal fin, rainbows have an adipose fin that is commonly clipped from fish raised in a hatchery. Clipping the adipose fin helps distinguish hatchery fish from wild fish when they are taken by anglers. This allows enforcement of regulations to protect wild rainbows. Source: Wikipedia