Steelhead grow longer, ranging from 50 to 122 cm (20 to 48 inches) in length.[1] Steelhead range in weight from 2.5 kg to 10 kg (5.5 - 22 pounds).

• 这样可以帮助钓鱼人区别野生与放流的鱼，也可以帮助渔政部门保护野生虹鳟。