sea trout

Sea trout ( Salmo trutta trutta )

The sea trout ( Salmo trutta trutta ) is one of the salmon fish ( Salmonidae) and is considered the ancestor of the type trout ( Salmo trutta ). Other names are: Baltic salmon ( sales promotion fancy name ), beach salmon, white trout, Trump, silver salmon, black salmon, Möllitz, Breden, Sülberlaß. Previously, the concept of salmon trout was used because of their lifestyle for the sea trout. Today, however, this term refers to a large breeding form of the rainbow trout ( see salmon trout). As Greenlanders are called sea trout spawning rise for the first time, as smolt juveniles who are on the first trip into the sea, and Parr as the juvenile form with the vertical stripe pattern.

The average size is 60 cm, length up to 130 cm and weights up to 20 kg are possible under favorable living conditions.

A striking feature is the elongated torpedo-shaped body. The sides are silvery gray and the back gray-green. The belly is white. Like all trout -like has also sea trout an adipose fin.

The sea trout feed mainly on fish, small crabs and shrimp.

The sea trout is on the coasts of Europe from the North Sea off to the Baltic Sea and Bay of Biscay. She is a living anadromous migratory fish, the Atlantic salmon is the very similar in his way of life and behavior. In the sea it is taking long walks and climbs to spawn even up into small rivers. The Ablaichung occurs in winter on gravelly subsoil in the barbel and grayling region. The eggs are deposited in redds. The fry remain 1 to 5 years in fresh water and then migrate to the sea. The "inner clock " signals the fish when they have to compete the way back into the sea. During this migration, they can cover distances up to 40 km a day.

Prepare fish spawning during the ascent are usually emaciated and must absorb a lot of food in order to increase their vitality as soon as possible. After the spawning is complete, the fish return to the sea. Mass death after spawning, as usual in some species of salmon, stay out. Back at sea, the fish put on weight again and lose her brown spawning dress.

Threats

In many rivers of Central Europe the sea trout is extinct, because power plants prevent their spawning migration. In addition, are gone by the Rückstauung many spawning grounds. In more recent times to make the sea trout in some waters back home by fish ladders and bypass channel were built around power plants succeeded. Thus, the spawning migration was possible again within the limited framework.

Changes in climatic conditions, such as rising water temperatures, increase the activity of sea trout in the sea and in freshwater streams.

Fishing

Sea trout are popular fishing and eating fish. The honeymoon period lasts according to the official specification at least three months. As the salmon sea trout in the river system of the Rhine and in most German rivers ( except some North German rivers ) year-round protected by law.

At the coastal waters of Schleswig-Holstein, the sea trout is being protected from 1 October to 31 December. This applies only to the fish in the " spawning dress " ( colored brown ), the "silver " may continue to be caught. In most estuaries, the method of fishing is completely prohibited in a protected area of 200 meters around the mouth during this time.

In the coastal waters of Mecklenburg-Vorpommern is a general prohibition of fishing for sea trout from September 15 to December 14. This applies to both fishermen and anglers.

" Relegated " is the general term angle of a sea trout after spawning. The removal of the " losers " is controversial among anglers. Most anglers refuse to take abgelaichte sea trout, as their flesh is inferior and dry.

Trivia

The sea trout is part of the coat of arms of the municipality Hitzhusens.