Lake trout

American lake trout

The American lake trout ( Salvelinus namaycush ), also known as American lake trout, referred to in Switzerland as a Canadian lake trout, salmon is one of the fishes ( Salmonidae).

Features

He has the typical salmonid species adipose fin between the dorsal and caudal fin. The back color is black to dark brown, the sides are brown to dark gray and the belly to light beige to dirty yellow. Typical is a drawing on the sides with dirty - white or yellowish points. Depending on the water and food supply shows the American lake trout as a current- line-or spindle-shaped, or only at extremely large specimens, bulbous.

Size

From times of a lumberjack in Canada 150 to 200 years ago is narrated that the American lake trout accounted for an important part of the diet and was easy to fish because of its numerous occurrences. It should have been present copies of up to 60 kg in weight. A record copy with 46 kg weight from the Athabasca is well documented. Because of overfishing of the North American trout waters by anglers, however, the weight of an American arctic char today is significantly higher in one to three kilograms in northern Canada and Alaska.

Occurrence

The American lake trout is originally in deep, cold enough oxygen-rich lakes, rare native to rivers in the northern half of North America. In the Great Lakes, it is nearly extinct because of overfishing, eutrophication and the increase of the parasitic lamprey. Stable resources exist in suitable lakes Ontario, Québec, Saskatchewan and Manitoba, as well as in Alaska and the Northwest Territories.

Since the American lake trout is very sensitive to changing environmental conditions and overfishing, efforts are made with elaborate procedures to maintain the native populations by breeding fish.

With varying success, the American lake trout was in the past two decades, also exposed appears to be suitable waters, inter alia, South America, especially Argentina and Chile. He was also settled in Europe in many mountain lakes in the Alps successful.

Way of life

American chars are compared to other fish mature late, which explains their sensitivity to environmental influences and overfishing. Depending on the type of water and air as well as the associated food supply they develop either plankton -eaters or predators. The former grow very slowly and remain small, while the latter grow rapidly and become large.

Common to both ways of life that in the summer cool as possible and therefore deep water layers are investigated. In winter, spring and late fall, however, we find the American Arctic char also on the water surface or under the ice and in shallow water.

Economic Importance

The American lake trout is one of the most sought after fish for the New World. He has a - to distinguish white to slightly yellowish over pale pink to deep salmon-colored, dry and firm flesh and the taste is a little salmon - depending on the food. These qualities decimated its presence considerably, so that the commercial fishery had to be abandoned on the American lake trout, inter alia, to the Great Lakes.

Fishing

The fishing on the American Arctic char is seasonally very different. In winter you can achieve good results in the near-shore ice fishing. In the spring, after the snow and ice melt, the American Arctic char is because of the cold water even close to the shore and you can get at him with bait casting or fly fishing. In summer, the American lake trout is slow in deep, cold water, and he is to persuade almost exclusively by trolls with severe copper cord, large turn signals and aufgespießtem because bait fish to bite. In the autumn the Angel variants mix of spring and summer, depending on water quality and water temperature.