The Atlantic wolfish, or Anarhichas lupus, is a fascinating species that attracts adventurous anglers in search of an extraordinary catch. Although its popularity is not as great as some more traditional species, it poses an interesting challenge for those who dare to hunt it in the cold waters of the St. Lawrence. This fish is known for its calm strength and its ability to withstand fights, thus offering a memorable fishing experience. It is generally found in the coastal waters of Quebec, particularly in rocky areas and seabeds where it hides among crevices.

The Atlantic wolfish has an elongated and robust body, reaching up to 1.5 meters in length. Its skin is covered with small scales, giving it a smooth appearance. The color of the Atlantic wolfish varies from bluish-gray to olive brown, often marked with dark crossbands that blend into the rocky environment. Its large mouth is lined with powerful, rounded teeth, adapted for crushing shellfish and crustaceans. The dorsal fins extend along the entire length of the back, while its pectoral fins are broad and muscular. Young Atlantic wolfish are generally lighter with less defined patterns, while adults display more contrasting colors. There are no significant differences between males and females, even during the spawning period.

In Quebec, the Atlantic wolfish is primarily found in the Gulf of St. Lawrence and along the north coast. It is particularly abundant in rocky areas and seabeds where it can hide and hunt effectively. Although it is rarer in the waters further south, it is not completely absent from coastal areas where conditions are favorable. Its general distribution extends from Arctic waters to the east coast of the United States, but Quebec remains a key region for observing this species.

The Atlantic wolfish prefers cold, salty waters, often found at depths ranging from 20 to 150 meters. It particularly favors rocky areas where it can hide among crevices and underwater formations. The ideal temperatures for this habitat range from 2 to 10 °C. Anglers should look for the Atlantic wolfish near rocky bottoms and reefs, where crustaceans and mollusks are abundant. Due to its preference for structured environments, it is less often found in open waters or sandy bottoms.

The reproduction of the Atlantic wolfish mainly occurs in the fall. Females lay large eggs, usually in rocky cavities where males guard them until they hatch. Young Atlantic wolfish remain close to the seabed, feeding on small crustaceans and mollusks. They reach sexual maturity between 5 and 8 years, depending on environmental conditions. The lifespan of the Atlantic wolfish can exceed 20 years, making it a fairly resilient species. Spring → Young growth → Summer → Active hunting period → Fall → Spawning and laying eggs → Winter → Survival in cold waters.

The Atlantic wolfish is a rather solitary fish, preferring the tranquility of depths and rocky areas. It is not particularly territorial, but it actively defends its spawning space. Reactive to changes in light, it is more active at dusk and dawn. Loud noises and sudden vibrations can scare it away, but it is generally indifferent to weather variations such as wind or rain. Its ability to blend into its environment makes it difficult to spot for predators and anglers.

The diet of the Atlantic wolfish primarily consists of crustaceans, mollusks, and bottom fish. Young fish feed on small invertebrates until they are large enough to attack harder prey. As adults, the wolfish uses its powerful teeth to crush the shells of crabs, sea urchins, and shellfish. Its diet varies little with the seasons, although it may adjust its hunting behavior based on prey availability and water temperature.

In spring, the Atlantic wolfish begins to show more activity after the winter months, exploring rocky areas in search of food. In summer, hunting activity peaks, especially in the early morning hours and late in the day. Fall is the spawning season, where the wolfish focuses more on reproduction than on hunting. In winter, although less active, the wolfish continues to feed sporadically, taking advantage of opportunities that arise underwater. Weather conditions such as atmospheric pressure and overcast skies have little impact on its seasonal habits.

To fish for the Atlantic wolfish, lures should mimic the fish's natural prey. Opt for natural colors like brown, green, and blue, which blend well into the rocky environment. In clear water, a lure with metallic hues can reflect light and attract attention. In overcast weather or murky water, brighter colors like yellow or orange can be effective in piquing the fish's interest. Ensure that the lures are suitable for the depth at which you are fishing, as the Atlantic wolfish generally stays close to the bottom.

To fish for the Atlantic wolfish, a sturdy rod about 2 to 2.5 meters long is recommended, with medium to heavy power to withstand fights. A quality spinning or baitcasting reel is essential, spooled with monofilament or braided line rated for 20 to 30 lb. Hooks should be strong, preferably stainless steel, to withstand this fish's powerful bite. A fluorocarbon leader rated for 30 to 40 lb is recommended for its stealth and abrasion resistance.

Handle the Atlantic wolfish carefully, as its teeth can cause injuries. Use fishing gloves to hold it firmly without damaging it. If you wish to release it back into the water, do so quickly to minimize stress. For a photo, support the fish well under the belly and avoid holding it by the gills. Ensure that the water is sufficiently oxygenated for its release.

Natural predators of the Atlantic wolfish include some large sharks and seals, which can capture it in deep waters. Seabirds such as cormorants do not pose a direct threat to adults but may target young fish near the surface.

In Quebec, the Atlantic wolfish is considered a species of concern due to overfishing and habitat degradation. Management measures are in place to limit catches and protect spawning areas. Recreational anglers are encouraged to practice catch and release to help preserve local populations.