Overview
It is easily recognized by its distinctive sail like dorsal fin which is followed by a small adipose fin that identifies this fish as a member of the salmon family. In males the dorsal fin is higher and rounded in the rear portion, and in females it is higher in front and somewhat smaller overall. It is a handsome fish due to its graceful lines, large fin, and coloration. Although the colors vary considerably, the body is generally grayish silver in appearance, usually with faint to prominent overtones or highlights of gold and/or lavender. The body generally has several dark spots, which may be shaped like X's or V's in some specimens. The dorsal fin is also spotted. Occasionally a fish may have an entirely golden or silvery appearance, or may be dark blue.
Taxonomy
- Kingdom
- Animalia
- Phylum
- Chordata
- Class
- Actinopterygii
- Order
- Perciformes
- Family
- Salmonidae
- Genus
- Thymallus
- Species
- arcticus
Habitat
As its name implies, the Arctic grayling is primarily an inhabitant of northern waters.
Diet
Arctic grayling primarily feed on aquatic insects like mayflies, caddisflies, and midges, as well as small crustaceans and fish larvae. They are opportunistic feeders, often drifting in currents to capture prey and feeding more actively during dawn and dusk. In some regions, they also consume terrestrial insects that fall into the water.
Behavior
Arctic grayling are schooling fish that migrate seasonally between rivers and lakes, often seeking cooler, oxygen-rich waters. They exhibit territorial behavior during spawning and are known for their swift, agile swimming patterns. These fish are most active in low-light conditions and can perform impressive leaps when threatened or hooked.
Fishing
They are superb sport and food fish. They are primarily taken by fly fishing. The firm, white flesh has a uniquely delicate flavor
Conservation Status
Listed as Least Concern by IUCN.