Grayling are an impressive looking fish of the salmonid family. They have a small mouth with large scales and have a silver/grey appearance. Adult fish gain a darker tone as they mature. Their most recognisable feature is their impressive large dorsal fin which helps them negotiate strong currents and attract mates. A male fish’s dorsal fins during the breeding season will become brightly coloured with usually a reddish band across the tip.
Having a similar diet to Chub and small Trout and Salmon, Grayling feed on freshwater invertebrates and will also eat small fish when they’re mature.